کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1521467 | 1511813 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dielectric and piezoelectric properties of piezoceramic/polymer 1-3 composites fabricated by a modified align-and-fill technique
ترجمه فارسی عنوان
ترانسفورمر و خواص فیزوالکتریک از پیزوالکتریک / پلیمر 1-3 کائوچو و مواد مرکب ساخته شده توسط یک تکنیک چین و پر کردن اصلاح شده
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کلمات کلیدی
سرامیک، پلیمرها، مواد کامپوزیتی، پیزو الکتریکی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
Piezoelectric ceramics with compositions (Pb0.94Sr0.04) (Zr0.52Ti0.48)O3 (PZT) and (Ba0.95Pb0.05) (Ti0.99Co0.01)O3 (BT) were synthesized by conventional solid state reaction technique. Three series of 1-3 composites; PZT/monothane-A70, BT/monothane-A70 and PZT/araldite-F were fabricated by a modified align-and-fill technique using the above mentioned piezoceramic compositions. Each series of the fabricated composite comprise five samples with variable ceramic contents (12-35 vol.%) and four samples with fixed ceramic volume fraction (28%) and varied ceramic aspect ratio (0.34-1.00). Dielectric, elastic and resonant characteristics of theses samples were measured. Effects of active piezoceramic composition and polymer influence on the electrical and mechanical properties of fabricated composites as a function of ceramic volume fraction were investigated. Results revealed that PZT based composites exhibit superior properties due to high piezoelectric charge coefficient (d33 â¼Â 335 pC/N) and high electromechanical coupling coefficient (k33 â¼Â 67%) compared to those of BT composites. It was also observed that electromechanical properties of composites are highly affected by the stiffness of the passive polymer matrix. Low stiffness (C33D â¼Â 21-55 GPa) PZT/monothane-A70 composites have better acoustic impedance (Z â¼Â 6-14 Mrayl), high piezoelectric charge coefficient (d33 â¼Â 202-271 pC/N), high hydrostatic charge coefficient (dh â¼Â 136-171 pC/N), high hydrostatic voltage coefficient (gh â¼Â 33-114 Ã 10â3 Vm/N) and high figure of merit (FOM â¼Â 4488-19,364 fm2/N) compared to PZT/araldite-F composites encompassing high stiffness (C33D â¼Â 23-60 GPa). The influences of ceramic aspect ratio on the electrical properties of fabricated 1-3 composites are also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volumes 149â150, 15 January 2015, Pages 670-677
Journal: Materials Chemistry and Physics - Volumes 149â150, 15 January 2015, Pages 670-677
نویسندگان
Muhammad Saleem Mirza, Tariq Yasin, Masroor Ikram, Shakir Khan, Muhammad Nasir Khan,