Franck Levassort

Professeur des universités
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Présentation

Franck Levassort was born near Paris, France. He received the bachelor’s degree in applied physics and the DEA (M.Sc.) degree in physical acoustics from University Paris 7-Denis Diderot, Paris, in 1990 and 1991, respectively, and the Ph.D. degree in ultrasound from the University of Tours, Tours, France, in 1996. From 1997 to 2013, he was an Assistant Professor and since 2014, he has been a Full Professor of Electrical Engineering with the Institute of Technology, University of Tours, Blois, France. Since 2024, he has been Director of GREMAN, Tours, a laboratory of more than 120 in the field of materials, microelectronics, acoustics, and nanotechnology. His current research interests include design, modeling, and characterization of piezoelectric composite materials and structures, as well as transducers for imaging applications.

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Publications

Image document

Intraoral Ultrasonography for the Exploration of Periodontal Tissues: A Technological Leap for Oral Diagnosis

Matthieu Renaud , Mickael Gette , Alexis Delpierre , Samuel Calle , Franck Levassort et al.
Diagnostics, 2024, 14 (13), pp.1335. ⟨10.3390/diagnostics14131335⟩
Article dans une revue hal-04621910 v1

Nanomechanical characterization of BiFeO3 ferroelectric ceramics

Katarina Žiberna , Maja Koblar , Micka Bah , Franck Levassort , Goran Dražić et al.
Journal of the European Ceramic Society, 2024, 44 (12), pp.7025-7031. ⟨10.1016/j.jeurceramsoc.2024.05.011⟩
Article dans une revue hal-04676636 v1

Lead-Free Piezoelectric Transducers

Erling Ringgaard , Franck Levassort , Ke Wang , Jeffrey Vaitekunas , Hajime Nagata
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2024, 71 (1), pp.3-15. ⟨10.1109/TUFFC.2023.3340950⟩
Article dans une revue hal-04676649 v1
Image document

High-Frequency Linear Array (20 MHz) based on Lead-Free BCTZ Crystal

Claire Bantignies , R. Rouffaud , Gabriel Buse , P. Veber , Hugues Cabane et al.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2024, 71 (1), pp.27-37. ⟨10.1109/TUFFC.2023.3278034⟩
Article dans une revue hal-04136397 v1

BaHf0.05Ti0.95O3 Ceramics from Sol–Gel and Solid-State Processes: Application to the Modelling of Piezoelectric Energy Harvesters

Damien Brault , Philippe Boy , Franck Levassort , Guylaine Poulin-Vittrant , Claire Bantignies et al.
Materials, 2024, 17 (7), pp.1508. ⟨10.3390/ma17071508⟩
Article dans une revue hal-04676641 v1

High Acoustic Impedance and Attenuation Backing for High-Frequency Focused P(VDF-TrFE)-Based Transducers

Sean Toffessi Siewe , Samuel Callé , François Vander Meulen , Damien Valente , Jean-Marc Grégoire et al.
Sensors, 2023, 23 (10), pp.4686. ⟨10.3390/s23104686⟩
Article dans une revue hal-04215540 v1
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Synthesis of a Stable and High-Concentration BaHf$_x$Ti$_{1−x}$O$_3$ Sol–Gel for High Electromechanical Performance of Bulk Ceramics

Damien Brault , Thomas Richardot , Philippe Boy , Philippe Belleville , Franck Levassort et al.
Materials, 2023, 16 (23), pp.7452. ⟨10.3390/ma16237452⟩
Article dans une revue hal-04612247 v1

Inkjet-Printed P(VDF-TrFE) Film for High-Frequency Annular Array

Aline Banquart , Samuel Callé , Jean-Marc Grégoire , Frédéric Ossant , Lionel Fritsch et al.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2023, 70 (4), pp.313-323. ⟨10.1109/TUFFC.2023.3242073⟩
Article dans une revue hal-04612429 v1
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Modeling a Fluid-Coupled Single Piezoelectric Micromachined Ultrasonic Transducer Using the Finite Difference Method

Valentin Goepfert , Audren Boulmé , Franck Levassort , Tony Merrien , Rémi Rouffaud et al.
Micromachines, 2023, 14, pp.2089. ⟨10.3390/mi14112089⟩
Article dans une revue hal-04612653 v1

Lead-Free Sodium Potassium Niobate-Based Multilayer Structures for Ultrasound Transducer Applications

Danjela Kuscer , Brigita Kmet , Silvo Drnovšek , Julien Bustillo , Franck Levassort
Sensors, 2022, 22 (9), pp.3223. ⟨10.3390/s22093223⟩
Article dans une revue hal-04164827 v1

Multifunctional energy storage and piezoelectric properties of 0.65Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>–0.35PbTiO<sub>3</sub> thick films on stainless-steel substrates

Matej Sadl , Kevin Nadaud , Micka Bah , Franck Levassort , Udo Eckstein et al.
JPhys Energy, 2022, 4 (2), pp.024004. ⟨10.1088/2515-7655/ac5fd5⟩
Article dans une revue hal-04165080 v1
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Effect of thermal annealing on dielectric and ferroelectric properties of aerosol-deposited 0.65Pb(Mg1/3Nb2/3)O3-0.35 PbTiO3 thick films

Kevin Nadaud , Matej Sadl , Micka Bah , Franck Levassort , Hana Ursic
Applied Physics Letters, 2022, 120 (11), pp.112902. ⟨10.1063/5.0087389⟩
Article dans une revue hal-03611590 v1

Screen Printed Copper and Tantalum Modified Potassium Sodium Niobate Thick Films on Platinized Alumina Substrates

Brigita Kmet , Danjela Kuščer , Soma Dutta , Hana Uršič , Aleksander Matavž et al.
Materials, 2021, 14 (23), pp.7137. ⟨10.3390/ma14237137⟩
Article dans une revue hal-03538265 v1

Piezoelectric P(VDF-TrFE) film inkjet printed on silicon for high-frequency ultrasound applications

Aline Banquart , Samuel Callé , Franck Levassort , Lionel Fritsch , Frédéric Ossant et al.
Journal of Applied Physics, 2021, 129 (19), pp.195107. ⟨10.1063/5.0048444⟩
Article dans une revue hal-03231174 v1

Textured, lead-free piezoelectric ceramics with high figure of merit for energy harvesting

Astri Bjørnetun Haugen , Erling Ringgaard , Franck Levassort
Journal of Physics: Materials, 2021, 4 (4), pp.044002. ⟨10.1088/2515-7639/ac0595⟩
Article dans une revue hal-03538267 v1
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Homogenization of periodic 1-3 piezocomposite using wave propagation: Toward an experimental method

Antoine Balé , Rémi Rouffaud , Franck Levassort , Renald Brenner , Anne-Christine Hladky
Journal of the Acoustical Society of America, 2021, 149 (5), pp.3122-3132. ⟨10.1121/10.0004824⟩
Article dans une revue hal-03227151 v1

Inkjet-printing-derived lead-zirconate-titanate-based thick films for printed electronics

Danjela Kuscer , Silvo Drnovšek , Franck Levassort
Materials & Design, 2021, 198, pp.109324. ⟨10.1016/j.matdes.2020.109324⟩
Article dans une revue hal-03201101 v1

Highly textured lead-free piezoelectric polycrystals grown by the micro-pulling down freezing technique in the BaTiO3 –CaTiO3 system

Philippe Veber , Karol Bartosiewicz , Jérôme Debray , Sébastien Pairis , Vincent Motto-Ros et al.
CrystEngComm, 2020, 22 (30), pp.4982-4993. ⟨10.1039/D0CE00657B⟩
Article dans une revue hal-02920068 v1

Textured multilayered piezoelectric structures for energy conversion

Astri Bjørnetun Haugen , Erling Ringgaard , Franck Levassort
JPhys Energy, 2020, 2 (1), pp.015002. ⟨10.1088/2515-7655/ab5f30⟩
Article dans une revue hal-02474664 v1

Acoustic Properties of Porous Lead Zirconate Titanate Backing for Ultrasonic Transducers

Danjela Kuscer , Julien Bustillo , Tina Bakaric , Silvo Drnovsek , Marc Lethiecq et al.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2020, 67 (8), pp.1656-1666. ⟨10.1109/TUFFC.2020.2983257⟩
Article dans une revue hal-03033749 v1

Microstructure evolution and electromechanical properties of (K,Na)NbO3‐based thick films

Hugo Mercier , Franck Levassort , Hana Uršič , Danjela Kuscer
Journal of the American Ceramic Society, 2020, 103 (12), pp.6677-6689. ⟨10.1111/jace.17146⟩
Article dans une revue hal-03201097 v1

Internal Electric Field in Co-Doped BaTiO 3 With Co 2+/3+ , Nb 5+ , Li + , and F − : Impact on Functional Properties and Charge Compensation With Niobium and Fluorine Ions

Rémy Ul , Franck Levassort , Michael Lematre , Louis-Pascal Tran-Huu-Hue , Maï Pham-Thi
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019, 66 (1), pp.154-162. ⟨10.1109/TUFFC.2018.2878365⟩
Article dans une revue hal-02000208 v1

Modeling the Electroelastic Moduli of Porous Textured Piezoceramics

Antoine Balé , Rémi Rouffaud , Anne-Christine Hladky , Franck Levassort , Pascal Marchet
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019, 66 (5), pp.949-957. ⟨10.1109/TUFFC.2019.2898519⟩
Article dans une revue hal-02113684 v1
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Lead-free piezoelectric crystals grown by the micro-pulling down technique in the BaTiO3–CaTiO3–BaZrO3 system

Philippe Veber , Karol Bartosiewicz , Jérôme Debray , Guillaume Alombert-Goget , Omar Benamara et al.
CrystEngComm, 2019, 21 (25), pp.3844-3853. ⟨10.1039/c9ce00405j⟩
Article dans une revue hal-02187642 v1
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Hybridization bandgap induced by an electrical resonance in piezoelectric metamaterial plates

Nesrine Kherraz , Lionel Haumesser , Franck Levassort , P. Benard , B. Morvan
Journal of Applied Physics, 2018, 123, pp.094901. ⟨10.1063/1.5016496⟩
Article dans une revue hal-01741376 v1

Parametric study of a thin piezoelectric cantilever for energy harvesting applications

Thien Hoang , G. Poulin-Vittrant , Guillaume Ferin , F. Levassort , Claire Bantignies et al.
Advances in Applied Ceramics, 2018, 117 (4), pp.231 - 236. ⟨10.1080/17436753.2017.1403538⟩
Article dans une revue hal-01740997 v1

3-D-Printed Phantom Fabricated by Photopolymer Jetting Technology for High-Frequency Ultrasound Imaging

Jean-René Jacquet , Frédéric Ossant , Franck Levassort , Jean-Marc Gregoire
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2018, 65 (6), pp.1048 - 1055. ⟨10.1109/TUFFC.2018.2823545⟩
Article dans une revue hal-01867387 v1

Characterization of Kerfless Linear Arrays Based on PZT Thick Film

Tomasz Zawada , Louise Moller Bierregaard , Erling Ringgaard , Ruichao Xu , Michele Guizzetti et al.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2017, 64 (9), pp.1409 - 1416. ⟨10.1109/TUFFC.2017.2709253⟩
Article dans une revue hal-01740978 v1

Electrophoretic deposition and properties of strontium-doped sodium potassium niobate thick films

Hugo Mercier , Barbara Malič , Hana Uršič , Jitka Hreščak , Franck Levassort et al.
Journal of the European Ceramic Society, 2017, 37 (16), pp.5305 - 5313. ⟨10.1016/j.jeurceramsoc.2017.06.030⟩
Article dans une revue hal-01867366 v1
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Unified model for the electromechanical coupling factor of orthorhombic piezoelectric rectangular bar with arbitrary aspect ratio

R Rouffaud , F Levassort , Anne-Christine Hladky
AIP Advances, 2017, 7, pp.25302 - 25302. ⟨10.1063/1.4976298⟩
Article dans une revue hal-01705106 v1

A combined genetic algorithm and finite element method for the determination of a practical elasto-electric set for 1-3 piezocomposite phases

R. Rouffaud , Anne-Christine Hladky , F. Levassort
Ultrasonics, 2017, 77, pp.214 - 223. ⟨10.1016/j.ultras.2017.02.015⟩
Article dans une revue hal-01705103 v1
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Processing and sintering of sodium-potasium niobate-based thick films

Hugo Mercier , Barbara Malič , Hana Uršič , Danjela Kuscer , Franck Levassort
Journal of Microelectronics, Electronic Components and Materials, 2017, 47 (3), pp.179-185
Article dans une revue hal-02153562 v1

Effect of Pore Size and Porosity on Piezoelectric and Acoustic Properties of Pb(Zr0.53Ti0.47)O3 Ceramics

Tina Bakaric , Tadej Rojac , André-Pierre Abellard , Barbara Malic , Franck Levassort et al.
Advances in Applied Ceramics, 2016, 115 (2), pp.66-71. ⟨10.1179/1743676115Y.0000000040⟩
Article dans une revue hal-01814873 v1
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Structural and piezoelectric properties evolution induced by cobalt doping and cobalt/niobium co-doping in BaTiO3

Gustavo Mata Osoro , Damien Bregiroux , Mai Pham Thi , Franck Levassort
Materials Letters, 2016, 166 (1), pp. 259-262. ⟨10.1016/j.matlet.2015.12.086⟩
Article dans une revue hal-01252037 v1
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Controlling Bragg gaps induced by electric boundary conditions in phononic piezoelectric plates

Nesrine Kherraz , Lionel Haumesser , Franck Levassort , P. Benard , B. Morvan
Applied Physics Letters, 2016, 108, pp.093503. ⟨10.1063/1.4943138⟩
Article dans une revue hal-01741359 v1

Tunable phononic crystals based on piezoelectric composites with 1-3 connectivity

Charles Croënne , Marie-Fraise Ponge , Bertrand Dubus , Christian Granger , Lionel Haumesser et al.
Journal of the Acoustical Society of America, 2016, 139, pp.3296 - 3302. ⟨10.1121/1.4950725⟩
Article dans une revue hal-01741391 v1

Super-Cell Piezoelectric Composite With 1–3 Connectivity

R. Rouffaud , Franck Levassort , Maï Pham Thi , Claire Bantignies , Marc Lethiecq et al.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2016, 63 (12), pp.2215 - 2223. ⟨10.1109/TUFFC.2016.2606109⟩
Article dans une revue hal-01741012 v1

Processing and Electromechanical Properties of Lead Zirconate Titanate Thick Films by Electrophoretic Deposition

André-Pierre Abellard , Danjela Kuscer , Marc Lethiecq , B. Malic , Franck Levassort
Advances in Applied Ceramics, 2015, 114 (4), pp.198-204. ⟨10.1179/1743676115Y.0000000008⟩
Article dans une revue hal-01814876 v1
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Tonpilz Underwater Acoustic Transducer Integrating Lead-free Piezoelectric Material

Rémi Rouffaud , Christian Granger , Anne-Christine Hladky , Mai Pham Thi , Franck Levassort
Physics Procedia, 2015, 70, pp.997 - 1001. ⟨10.1016/j.phpro.2015.08.208⟩
Article dans une revue hal-01705141 v1
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Complete electroelastic set for the (YXt)-45 cut of a KNbO3 single crystal

R Rouffaud , P. Marchet , Anne-Christine Hladky , C. Bantignies , M. Pham-Thi et al.
Journal of Applied Physics, 2014, 116 (19), ⟨10.1063/1.4902168⟩
Article dans une revue hal-01705113 v1

Lead Zirconate Titanate-Based Thick Films for High-Frequency Focused Ultrasound Transducers Prepared by Electrophoretic Deposition

André-Pierre Abellard , Danjela Kuscer , Jean-Marc Grégoire , Marc Lethiecq , B. Malic et al.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2014, 61 (3), pp.547-556. ⟨10.1109/TUFFC.2014.2938⟩
Article dans une revue hal-01814878 v1

Fabrication and Characterization of Annular-Array, High-Frequency, Ultrasonic Transducers Based on PZT Thick Film

D. Wang , Erwan Filoux , Franck Levassort , Marc Lethiecq , S.A. Rocks et al.
Sensors and Actuators A: Physical , 2014, 216, pp.207-213. ⟨10.1016/j.sna.2014.05.026⟩
Article dans une revue hal-01814879 v1

Lead Zirconate Titanate Multi-Element Structure by Electrophoretic Deposition

André-Pierre Abellard , Danjela Kuscer , Marc Lethiecq , Jean-Marc Grégoire , Barbara Malic et al.
Journal of Microelectronics, Electronic Components and Materials, 2014, 44 (1), pp.34-41
Article dans une revue hal-01814880 v1

Dual-Frequency Transducer for Nonlinear Contrast Agent Imaging

Axel Guiroy , Anthony Novell , Erling Ringgaard , Rasmus Lou-Moeller , Jean-Marc Grégoire et al.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2013, 60 (12), pp.2634-2644. ⟨10.1109/TUFFC.2013.2862⟩
Article dans une revue hal-01814887 v1

0.65Pb(Mg 1/3 Nb 2/3 )O 3 –0.35PbTiO 3 Thick Films for High-Frequency Piezoelectric Transducer Applications

Hana Ursic , Franck Levassort , Janez Holc , Marc Lethiecq , Marija Kosec
Japanese Journal of Applied Physics, 2013, 52 (5R), pp.055502. ⟨10.7567/JJAP.52.055502⟩
Article dans une revue hal-01814884 v1

Optimised Properties of High Frequency Transducers Based on Curved Piezoelectric Thick Films Obtained by Pad Printing Process

Erwan Filoux , Rasmus Lou-Moeller , Samuel Callé , Marc Lethiecq , Franck Levassort
Advances in Applied Ceramics, 2013, 112 (2), pp.75-78. ⟨10.1179/1743676112Y.0000000031⟩
Article dans une revue hal-01814881 v1

Piezoelectric Thick-Film Structures for High-Frequency Applications Prepared by Electrophoretic Deposition

Danjela Kuscer , André-Pierre Abellard , Marija Kosec , Franck Levassort
Ceramic Transactions, 2013, 240, pp.131-141. ⟨10.1002/9781118744109.ch15⟩
Article dans une revue hal-02183211 v1

Lead-Zirconate-Titanate Thick Films by Electrophoretic Deposition for High-Frequency Ultrasound Transducers

Danjela Kuscer , Franck Levassort , Marc Lethiecq , André-Pierre Abellard , Marija Kosec
Journal of the American Ceramic Society, 2012, 95 (3), pp.892-900. ⟨10.1111/j.1551-2916.2011.04911.x⟩
Article dans une revue istex hal-01814889 v1

Non-Planar Pad-Printed Thick-Film Focused High-Frequency Ultrasonic Transducers for Imaging and Therapeutic Applications

Marc Lethiecq , Rasmus Lou-Moeller , Jeffrey A. Ketterling , Franck Levassort , Louis Pascal Tran-Huu-Hue et al.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2012, 59 (9), pp.1976-1982. ⟨10.1109/TUFFC.2012.2416⟩
Article dans une revue hal-01814888 v1

Lead free (Li,Na,K)(Nb,Ta,Sb)O3 piezoelectric ceramics: Influence of sintering atmosphere and ZrO2 doping on densification, microstructure and piezoelectric properties

Gaëtan Lévêque , Pascal Marchet , Franck Levassort , Louis-Pascal Tran-Huu-Hue , Jean-René Duclere
Journal of the European Ceramic Society, 2011, 31, pp.577-588. ⟨10.1016/j.jeurceramsoc.2010.10.031⟩
Article dans une revue istex hal-00584942 v1

0-3 and 1-3 piezo-composites based on single crystal PMN-PT for transducer applications

F. Levassort , Anne-Christine Hladky , H. Le Khanh , L.P. Tran-Huu-Hue , M. Lethiecq et al.
Advances in Applied Ceramics, 2010, 109, pp.162-168. ⟨10.1179/174367509X12472364601075⟩
Article dans une revue hal-00549550 v1
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Large area 0-3 and 1-3 piezoelectric composites based on single crystal PMN-PT for transducer applications

M. Pham Thi , Anne-Christine Hladky , H. Le Khanh , L.P. Tran-Huu-Hue , M. Lethiecq et al.
Physics Procedia, 2010, 3, pp.897-904. ⟨10.1016/j.phpro.2010.01.115⟩
Article dans une revue hal-00549549 v1
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Electromechanical Properties of Piezoelectric Integrated Structures on Porous Substrates

Pierre Marechal , Franck Levassort , Janez Holc , Danjela Kuscer , Maria Kosec et al.
Ferroelectrics, 2008, 371 (1), pp.89 - 97. ⟨10.1080/00150190802396850⟩
Article dans une revue hal-03840978 v1

New tools for electromechanical characterisation of piezoceramics

G. Feuillard , E. Le Clezio , Franck Levassort , Pascal Tran Huu Hue , Thomas Delaunay et al.
Journal of Electroceramics, 2007, 19 (4), pp.419 - 426. ⟨10.1007/s10832-007-9177-4⟩
Article dans une revue istex hal-01804614 v1

Theoretical and experimental study of the influence of the particle size distribution on acoustic wave properties of strongly inhomogeneous media

François Vander Meulen , Guy Feuillard , Olivier Bou Matar , Franck Levassort , Marc Lethiecq
Journal of the Acoustical Society of America, 2001, 110 (5), pp.2301-2307. ⟨10.1121/1.1404435⟩
Article dans une revue hal-04016094 v1

Propagation of Lamb waves in 1–3 piezocomposites and their application to liquid sensors

F. Teston , Guy Feuillard , D. Certon , F. Levassort , M. Lethiecq
Ferroelectrics, 1999, 224 (1), pp.13-20. ⟨10.1080/00150199908210545⟩
Article dans une revue hal-04016073 v1

Characterisation of P(VDF-TrFE) material taking into account dielectric relaxation: application to modelling of high frequency transducers

F. Levassort , L.P.Tran Huu Hue , Guy Feuillard , M. Lethiecq
Ultrasonics, 1998, 36 (1-5), pp.41-45. ⟨10.1016/S0041-624X(97)00081-4⟩
Article dans une revue istex hal-04016065 v1

Lateral resonances in 1–3 piezoelectric periodic composite: Modeling and experimental results

Dominique Certon , Frédéric Patat , Franck Levassort , Guy Feuillard , Brynjar Karlsson
Journal of the Acoustical Society of America, 1997, 101 (4), pp.2043-2051. ⟨10.1121/1.418136⟩
Article dans une revue hal-04016050 v1

Miniaturized 6 MHz phased-array ultrasound probe based on lead-free doped BaTiO3 piezoceramics

Claire Bantignies , Loïck Bonnet , Rémi Rouffaud , Monique Pouille , Ana Borta-Boyon et al.
2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS), Sep 2024, Taipei, Taiwan. pp.1-4, ⟨10.1109/UFFC-JS60046.2024.10793579⟩
Communication dans un congrès hal-04947584 v1

Structural and Microstructural Defects in Mechanically Deformed Lead-free Ferroelectrics

Katarina Žiberna , Maja Koblar , Micka Bah , Franck Levassort , Hana Uršič et al.
Microscopy and Microanalysis, Jul 2024, Cleveland - Ohio, United States. ⟨10.1093/mam/ozae044.564⟩
Communication dans un congrès hal-04976128 v1

Lead-Free Piezoelectric Transducers for Resonant Applications

Erling Ringgaard , Franck Levassort , Ke Wang , Jeffrey Vaitekunas , Hajime Nagata
IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium, Sep 2024, Taipei, Taiwan
Communication dans un congrès hal-04976077 v1

Performance Comparison Between Single Layer and Several Configurations of Bilayer P(VDF-TrFE) Transducers in Pulse-Echo Measurements

Sean Toffessi Siewe , Samuel Calle , Louis-Pascal Tran-Huu-Hue , Aline Banquart , Jean-Marc Gregoire et al.
2022 IEEE International Ultrasonics Symposium (IUS), Oct 2022, Venice, Italy. pp.1-4, ⟨10.1109/IUS54386.2022.9958503⟩
Communication dans un congrès hal-04164880 v1

Metal Composite Backing with High Acoustic Attenuation and Impedance for P(VDF-TrFE)-based Transducer

Sean Toffessi Siewe , Samuel Callé , François Vander Meulen , Damien Valente , Jean-Marc Grégoire et al.
2023 IEEE International Ultrasonics Symposium (IUS), Sep 2023, Montreal, Canada. pp.1-4, ⟨10.1109/IUS51837.2023.10306493⟩
Communication dans un congrès hal-04976009 v1
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Comparaison théorique des performances de transducteurs mono-élément haute fréquence (50MHz) en utilisant différentes techniques de focalisation

Sean Toffessi Siewe , Samuel Callé , Aline Banquart , Fréderic Ossant , Jean-Marc Grégroire et al.
16ème Congrès Français d'Acoustique, CFA2022, Société Française d'Acoustique; Laboratoire de Mécanique et d'Acoustique, Apr 2022, Marseille, France
Communication dans un congrès hal-03848330 v1

Sonde Hybride Bi-Fréquence -Émission cMUT/Réception P(VDF- TrFE)- pour l’Imagerie Harmonique

Rémi Rouffaud , Igor Campos Vilas Boas , Nicolas Senegond , Maxime Cheppe , Laurent Colin et al.
16ème Congrès Français d'Acoustique, CFA2022, Société Française d'Acoustique; Laboratoire de Mécanique et d'Acoustique, Apr 2022, Marseille, France
Communication dans un congrès hal-03848108 v1
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Implémentation d'un circuit électromécanique d'une cellule pMUT vibrant dans l'air

Valentin Goepfert , Audren Boulme , Rémi Rouffaud , Franck Levassort , Dominique Certon
16ème Congrès Français d'Acoustique, CFA2022, Société Française d'Acoustique; Laboratoire de Mécanique et d'Acoustique, Apr 2022, Marseille, France
Communication dans un congrès hal-03848329 v1

Characterization of 1-3 Piezocomposite Using Lamb Waves Propagation

Rémi Rouffaud , Anne-Christine Hladky , Dominique Certon , Antoine Balé , Franck Levassort
Forum Acusticum, Dec 2020, Lyon, France. pp.1873-1873, ⟨10.48465/fa.2020.0745⟩
Communication dans un congrès hal-03240301 v1

Properties comparison of three HF (50 MHz) single-element transducer radiation patterns with different focusing principles

Sean Toffessi Siewe , Samuel Callé , Aline Banquart , Frederic Ossant , Jean-Marc Grégoire et al.
2020 IEEE International Ultrasonics Symposium (IUS), Sep 2020, Las Vegas, France. pp.1-4, ⟨10.1109/IUS46767.2020.9251529⟩
Communication dans un congrès hal-03033796 v1

[Invited] Texturation of lead-free BaTiO<sub>3</sub> based piezoelectric ceramics

Pascal Marchet , Angel Prato , Franck Levassort , Claire Bantignies , Ana Borta-Boyon et al.
95th Deutsche Keramische Gesellschaft Annual Meeting, CERAMICS 2020, Nov 2020, Jülich, Germany
Communication dans un congrès hal-03450891 v1

Numerical and experimental investigations of piezoelectric energy harvesters

Thien Hoang , Maxime Bavencoffe , Guillaume Férin , Franck Levassort , Claire Bantignies et al.
Electroceramics for End users X Conference (PIEZO2019), Jan 2019, Spindleruv Mlyn, Czech Republic
Communication dans un congrès hal-02390824 v1

Texturation of lead-free BaTiO<sub>3</sub> based piezoelectric ceramics

Pascal Marchet , Angel Prato , Franck Levassort , Claire Bantignies , Maï Pham-Thi et al.
XVI Conference and Exhibition of the European Ceramic Society, XVI ECerS 2019, Jun 2019, Torino, Italy
Communication dans un congrès hal-04534604 v1

Electroelastic modulus of 1-3 piezocomposite using Lamb waves propagation

A. Bale , Anne-Christine Hladky , F. Levassort , D. Certon , R. Rouffaud
IEEE International Ultrasonics Symposium, IUS 2019, Oct 2019, Glasgow, United Kingdom
Communication dans un congrès hal-04534621 v1

Texturation of lead-free BaTiO3 based piezoelectric ceramics

Angel Prato , F. Levassort , C. Bantignies , M. Pham Thi , Anne-Christine Hladky et al.
PIEZO 2019, Jan 2019, Splinderun Mlyn, Czech Republic
Communication dans un congrès hal-02376295 v1

Texturation of lead-free BaTiO3 based piezoelectric ceramics

Pascal Marchet , Angel Prato , F. Levassort , C. Bantignies , M. Pham Thi et al.
XVI ECerS Conference 2019, Jun 2019, Torino, Italy
Communication dans un congrès hal-02378965 v1

Texturation de céramiques piézoélectriques sans plomb à base de BaTiO3

Pascal Marchet , Angel Prato , F. Levassort , C. Bantignies , Anne-Christine Hladky et al.
Matériaux 2018, Nov 2018, Strasbourg, France
Communication dans un congrès hal-02142068 v1
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Theoretical electroelastic modili of porous textured piezoceramics

Antoine Balé , Rémi Rouffaud , F. Levassort , Anne-Christine Hladky , Pascal Marchet
IEEE international Ultrasonics Symposium 2018, Oct 2018, Kobe, Japan. ⟨10.1109/ultsym.2018.8579661⟩
Communication dans un congrès hal-02142064 v1

Texturation of lead-free BaTiO3 based piezoelectric ceramics

Angel Prato , F. Levassort , C. Bantignies , M. Pham Thi , Anne-Christine Hladky et al.
Electroceramics XVI, Jul 2018, Hasselt, Belgium
Communication dans un congrès hal-02142060 v1

Lead-Free Sodium Potassium Niobate Based Piezoelectric Thick Film Bimorph Structure for Energy Harvesting

Claire Bantignies , Thien Hoang , Hugo Mercier , Franck Levassort , Danjela Kuscer et al.
2018 IEEE International Ultrasonics Symposium (IUS), Oct 2018, Kobe, France. pp.1-4, ⟨10.1109/ULTSYM.2018.8579667⟩
Communication dans un congrès hal-02048609 v1

Texturation de céramiques sans plomb à base de BaTiO3

Angel Prato , F. Levassort , C. Bantignies , M. Pham-Thi , Pascal Marchet
Journées annuelles 2018 du GFC, Mar 2018, Bordeaux, France
Communication dans un congrès hal-02142053 v1

Modeling and Electrical Characterization of a Cantilever Beam for Mechanical Energy Harvesting

Thien Hoang , Maxime Bavencoffe , Guillaume Férin , Franck Levassort , Claire Bantignies et al.
2018 IEEE International Ultrasonics Symposium (IUS), Oct 2018, Kobe, France. pp.1-4, ⟨10.1109/ULTSYM.2018.8579676⟩
Communication dans un congrès hal-02109268 v1

Homogénéisation de céramiques piézoélectriques texturées sans plomb pour la transduction ultrasonore

Antoine Balé , Anne-Christine Hladky , Rémi Rouffaud , Pascal Marchet , F. Levassort
CFA 2018, Apr 2018, Le Havre, France
Communication dans un congrès hal-02141854 v1

La texturation des céramiques : application aux matériaux piézoélectriques sans plomb

Angel Prato , F. Levassort , C. Bantignies , M. Pham Thi , Pascal Marchet
2ème Ecole de Printemps : Matériaux, Procédés et Applications, Apr 2017, Nador, Maroc
Communication dans un congrès hal-01901039 v1

High-frequency acoustic characterization of porous lead zirconate titanate for backing applications

Danjela Kuscer , Tina Bakaric , André-Pierre Abellard , Julien Bustillo , Marc Lethiecq et al.
2017 IEEE International Ultrasonics Symposium (IUS) , Sep 2017, Washington, United States
Communication dans un congrès hal-01634093 v1

Texturation of lead-free BaTiO3 based piezoelectric ceramics

Angel Prato , F. Levassort , C. Bantignies , M. Pham Thi , Pascal Marchet
PIEZO 2017, Feb 2017, Cercedilla, Spain
Communication dans un congrès hal-01899464 v1

Porous lead zirconate titanate ceramics with optimized acoustic properties for high-frequency ultrasonic transducer applications

Marc Lethiecq , Danjela Kuscer , Julien Bustillo , André-Pierre Abellard , Tina Bakaric et al.
Acoustical Society of America (ASA) 174th Meeting, 2017, New Orleans, LA, USA, United States. pp.2576, ⟨10.1121/1.5014416⟩
Communication dans un congrès hal-01741053 v1

Parametric study of a thin piezoelectric cantilever for energy harvesting applications

Thien Hoang , Guillaume Ferin , Bogdan Rosinski , Claire Bantignies , Hung Lekhanh et al.
Electroceramics for End-users IX Conference (PIEZO2017), Feb 2017, Cercedilla, Spain
Communication dans un congrès hal-03226436 v1
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Complete Electroelastic Set of Co doped Barium Titanate for Transducer Applications

Rémy Ul , Rémi Rouffaud , Louis-Pascal Tran-Huu-Hue , Franck Levassort , Maï Pham-Thi et al.
2017 IEEE International Ultrasonics Symposium (IUS), Sep 2017, Washington, DC, United States. ⟨10.1109/ULTSYM.2017.8091772⟩
Communication dans un congrès hal-01705122 v1

Coupled model for determination of full electroelastic sets of 1-3 piezocomposite with various pillar shapes

Antoine Bale , Franck Levassort , Anne-Christine Hladky
IEEE International Ultrasonics Symposium (IUS), Sep 2017, Washington, United States. ⟨10.1109/ULTSYM.2017.8091841⟩
Communication dans un congrès hal-03300130 v1

Characterization of a thin piezoelectric material before integration into a cantilever-based mechanical energy harvester

Thien Hoang , G. Férin , B. Rosinski , C. Bantignies , H. Le Khanh et al.
2016 IEEE International Ultrasonics Symposium (IUS), Sep 2016, Tours, France. ⟨10.1109/ULTSYM.2016.7728652⟩
Communication dans un congrès hal-01741000 v1

Texturation of lead-free BaTiO3 based piezoelectric ceramics

Angel Prato , F. Levassort , C. Bantignies , P. Pham Thi , Pascal Marchet
Electroceramics XV, SPCTS, Jun 2016, Limoges, France
Communication dans un congrès hal-01852006 v1
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1-3 Piezocomposites Based on Super-Cell Structuring for Transducer Applications

Rémi Rouffaud , Franck Levassort , Marc Lethiecq , Mai Pham Thi , Anne-Christine Hladky et al.
2015 IEEE International Ultrasonics Symposium (IUS), Oct 2015, Taipei, Taiwan. ⟨10.1109/ULTSYM.2015.0368⟩
Communication dans un congrès hal-01705138 v1

Tunable Bragg band gaps in piezocomposite phononic crystals

Charles Croënne , Marie-Fraise Ponge , Anne-Christine Hladky , Mai Pham Thi , Franck Levassort et al.
2015 IEEE International Ultrasonics Symposium (IUS), Oct 2015, Taipei, Taiwan. pp.1-4, ⟨10.1109/ULTSYM.2015.0051⟩
Communication dans un congrès hal-03299401 v1

Domain wall evolutions laws of piezoceramic materials under mechanical loading

Mathieu Domenjoud , Julien Bustillo , Marc Lethiecq , Franck Levassort
IEEE International Symposium on the Applications of Ferroelectrics and Piezoresponse Force Microscopy, May 2014, Penn state, United States. ⟨10.1109/ISAF.2014.6922967⟩
Communication dans un congrès hal-01235815 v1

Matériaux piézoélectriques sans plomb pour transducteurs acoustiques

M Pham Thi , Pascal Marchet , F Levassort , C Blantignie
matériaux 2014, Nov 2014, Montpellier, France
Communication dans un congrès hal-01116549 v1
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Texturation of lead-free BaTiO3-based piezoelectric ceramics

A Ngueteu-Kamlo , F Levassort , M Pham Thi , Pascal Marchet
Electroceramics XIV, Jun 2014, Bucarest, Romania
Communication dans un congrès hal-01116537 v1

Texturation of lead-free BaTiO3-based piezoelectric ceramics

A Ngueteu-Kamlo , F. Levassort , M. Pham-Thi , Pascal Marchet
PIEZO 2013 Electroceramics for end user, Mar 2013, Les Arcs 1800, France
Communication dans un congrès hal-00949486 v1

Texturation of lead-free BaTiO3 based piezoelectric ceramics

A Ngueteu-Kamlo , F. Levassort , M. Pham Thi , Pascal Marchet
2013 Joint UFFC, EFTF and PFM Symposium, Jul 2013, Prague, Czech Republic
Communication dans un congrès hal-00950322 v1
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Lead-free high-frequency linear-array transducer (30 MHz) for in vivo skin imaging

C. Bantignies , E. Filoux , P. Mauchamp , R. Dufait , M. Pham Thi et al.
2013 IEEE International Ultrasonics Symposium (IUS), Jul 2013, Prague, Czech Republic. ⟨10.1109/ULTSYM.2013.0202⟩
Communication dans un congrès hal-01705147 v1
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Ultrasonic transducers based on curved lead-free piezoelectric thick films for high resolution medical imaging

Franck Levassort , Konstantin Astafiev , Rasmus Lou-Moeller , Jean-Marc Grégoire , Lise Nielsen et al.
Acoustics 2012, Apr 2012, Nantes, France
Communication dans un congrès hal-00810928 v1
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Electro-elastic moduli and frequency dependence of KN single crystal

R Rouffaud , F. Levassort , M. Pham-Thi , E. Leveugle , Anne-Christine Hladky
2012 Joint 21st IEEE ISAF / 11th IEEE ECAPD / IEEE PFM (ISAF/ECAPD/PFM), Jul 2012, Aveiro, Portugal. pp.1-4, ⟨10.1109/ISAF.2012.6297785⟩
Communication dans un congrès hal-01705153 v1
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Electrophoretic deposition (EPD) process for lead zirconate titanate (PZT) thick films fabrication and high frequency medical imaging

André-Pierre Abellard , Franck Levassort , Danjela Kuscer , Janez Holc , Jean-Marc Grégoire et al.
Acoustics 2012, Apr 2012, Nantes, France
Communication dans un congrès hal-00810992 v1
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Influence of 1-3 piezocomposite fabrications on lateral modes

Rémi Rouffaud , Anne-Christine Hladky , Maï Pham-Thi , Claire Bantignies , Franck Levassort
2012 IEEE International Ultrasonics Symposium, Oct 2012, Dresden, Germany. ⟨10.1109/ULTSYM.2012.0556⟩
Communication dans un congrès hal-01705150 v1
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Modeling of pseudo-periodic 1-3 piezo-composites for ultrasonic transducers

R. Rouffaud , Anne-Christine Hladky , M. Pham Thi , E. Leveugle , F. Levassort
Acoustics 2012, Apr 2012, Nantes, France
Communication dans un congrès hal-00797221 v1
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Fabrication and modeling of piezoelectric transducers for High-Frequency medical imaging

André-Pierre Abellard , Danjela Kuscer , Janez Holc , Franck Levassort , Oleksandr Noshchenko et al.
47th International Conference on Microelectronics, Devices and Materials and the Workshop, Sep 2011, Ajdovščina, Slovenia. pp.33-37
Communication dans un congrès hal-00817373 v1

Composites 0-3 et 1-3 à base de monocristaux piézoélectrique-polymère pour transducteurs acoustiques

M. Pham Thi , Anne-Christine Hladky , F. Levassort
Matériaux 2010, 2010, Nantes, France
Communication dans un congrès hal-00573561 v1

Fabrication et caractérisation de composites piézoélectriques de connectivité 1-3 à base de monocristaux pour la transduction ultrasonore

F. Levassort , Anne-Christine Hladky , L.P. Tran-Huu-Hue , M. Lethiecq , D. Ekeom et al.
10ème Congrés Français d'Acoustique, CFA 10, 2010, France. pp.1-5
Communication dans un congrès hal-00572213 v1

Caractérisation et modélisation de transducteurs haute fréquence utilisant les technologies de films épais piézoélectriques

Erwan Filoux , Samuel Callé , Rasmus Lou-Moeller , Marc Lethiecq , Franck Levassort
10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France
Communication dans un congrès hal-00549612 v1
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Fabrication et caractérisation de composites piézoélectriques de connectivité 1-3 à base de monocristaux pour la transduction ultrasonore

Franck Levassort , Anne-Christine Hladky , Louis-Pascal Tran-Huu-Hue , Marc Lethiecq , D. Ekeom et al.
10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France
Communication dans un congrès hal-00551172 v1

Fabrication and characterization of large area 1-3 piezo-composites based on PMN-PT single crystals for transducer applications

M. Pham Thi , H. Le Khanh , D. Ekeom , Anne-Christine Hladky , L.P. Tran-Huu-Hue et al.
IEEE International Ultrasonics Symposium, 2009 IEEE IUS, 2009, Italy. pp.1745-1748, ⟨10.1109/ULTSYM.2009.5441989⟩
Communication dans un congrès hal-00474073 v1
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HIGH-FREQUENCY ULTRASONIC TRANSDUCERS Fabrication, Characterisation, Performance

Franck Levassort , Louis-Pascal Tran-Huu-Hue , Jean-Marc Grégoire , Marc Lethiecq
Electroceramics for End-users II - Material Technology and Design of Integrated Piezoelectric Devices, Feb 2004, Courmayeur, Italy
Communication dans un congrès hal-03343695 v1

Numerical and experimental study of thinned-bulk piezoelectric harvesters

Thien Hoang , Maxime Bavencoffe , Guillaume Férin , Franck Levassort , Claire Bantignies et al.
9th National Days on Energy Harvesting and Storage - JNRSE 2019 (9ème Journée Nationale sur la Récuperation et le Stockage d’Energie), May 2019, Blois, France. , 2019, Proceedings of 9th National Days on Energy Harvesting and Storage
Poster de conférence hal-02391333 v1

Optimized self-consistent full database of piezoelectric material: application to KNbO3 single crystal

R. Rouffaud , Franck Levassort , M. Pham , Pascal Marchet , C. Bantignies et al.
Electroceramics XV, Jun 2016, Limoges, France
Poster de conférence hal-01841380 v1