کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10625870 989637 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sol-gel derived PMN-PT thick films for high frequency ultrasound linear array applications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Sol-gel derived PMN-PT thick films for high frequency ultrasound linear array applications
چکیده انگلیسی
A 12-µm PMN-PT [0.65Pb(Mg1/3Nb2/3)O3-0.35PbTiO3] thick film was produced by alternate spin-coating of a ceramic powder/sol-gel composite and infiltration of the sol-gel. Using this technique, a high quality PMN-PT thick film was obtained, showing a permittivity εr of ~3300 and dielectric loss factor of ~0.02 at 1 kHz. Photolithographic and wet etching techniques were used to fabricate a 32-element linear array from the film. The completed array showed a center frequency of approximately 110 MHz and a bandwidth of 60% at −6 dB without a matching layer. The performance of the kerfless array was studied and compared to a kerfed array simulated with finite element analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 39, Issue 8, December 2013, Pages 8709-8714
نویسندگان
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