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

Autor: Danjela Kuscer, Brigita Kmet, Silvo Drnovšek, Julien Bustillo, Franck Levassort

Publikováno v: Sensors, Vol 22, Iss 9, p 3223 (2022)

Thick films with nominal composition (K0.5Na0.5)0.99Sr0.005NbO3 (KNNSr) on porous ceramics with identical nominal composition were investigated as potential candidates for environmentally benign ultrasonic transducers composed entirely of inorganic m

Externí odkaz: https://doaj.org/article/313a4777ad67424a9670a462cc65bade

Acoustic Properties of Porous Lead Zirconate Titanate Backing for Ultrasonic Transducers

Autor: Danjela Kuscer, Tina Bakaric, Julien Bustillo, Marc Lethiecq, Silvo Drnovšek, Franck Levassort

Publikováno v: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2020, 67 (8), pp.1656-1666. ⟨10.1109/TUFFC.2020.2983257⟩

For transducer design, it is essential to know the acoustic properties of the materials in their operating conditions. At frequencies over 15 MHz, standard methods are not well adapted because layers are very thin and backings have very high attenuat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::117018876c43a0e9bcace84ea4df1d71
https://doi.org/10.1109/tuffc.2020.2983257

FEM simulation on elastic parameters of porous silicon with different pore shapes

Autor: Julien Bustillo, Xiaoyue Gong, Gaël Gautier, Laurianne Blanc

Publikováno v: International Journal of Solids and Structures
International Journal of Solids and Structures, Elsevier, 2020, 190, pp.238-243. ⟨10.1016/j.ijsolstr.2019.11.001⟩

Porous silicon (PSi) seems to be a promising material for acoustic transducers due to its manufacturing ease and high abilities. Yet, the investigation on wave propagation in this porous material is required to enhance the sensitivity. According to B

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0528317f74a7799de11962acdeb43d8
http://hdl.handle.net/20.500.12278/37471

Composite microstructures and piezoelectric properties in tantalum substituted lead-free K0.5Na0.5Nb1-xTaxO3 ceramics

Autor: Isabelle Monot-Laffez, Micka Bah, Mustapha Zaghrioui, Julien Bustillo, Florian Jean, Fabien Giovannelli, Frédéric Schoenstein, Pascal Marchet

Publikováno v: Ceramics International
Ceramics International, Elsevier, 2018, 44 (8), pp.9463-9471. ⟨10.1016/j.ceramint.2018.02.163⟩

K 0.5 Na 0.5 Nb 1-x Ta x O 3 (KNNT) (with x = 0.00, 0.05, 0.10, 0.20, 0.30, 0.50 and 1) ceramics are prepared by ball milling and two calcinations at 830 °C for 5 h. Subsequent sintering of centimeter size pellets, 1–2 mm thick, is studied using c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0ec954b380fc6a6e99827bc71774440
https://doi.org/10.1016/j.ceramint.2018.02.163

Contact surface fraction evaluation between aluminium and polymer using acoustic reverberation

Autor: Nicole Doumit, Laurianne Blanc, Andres Arciniegas, Julien Bustillo, Hossep Achdjian

Publikováno v: Applied Acoustics
Applied Acoustics, Elsevier, 2018, 141, pp.208-212. ⟨10.1016/j.apacoust.2018.07.016⟩

The propagation of acoustic waves in a finite medium with low attenuation produces long duration signals (reverberation). These complex signals contain useful quantitative and qualitative information about medium properties and are sensitive to struc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0245dc6a6bcda773170e27d309f9e2f8
https://hal.archives-ouvertes.fr/hal-01848173