Electrical & Electronic Materials (E2M - 전기 전자와 첨단 소재)
- Volume 9 Issue 2
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- Pages.146-151
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- 1996
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- 2982-6268(pISSN)
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- 2982-6306(eISSN)
Dielectric and piezoelectric properties of PZT-polymer 3-3 type composite for ultrasonic transducer applications
초음파 트랜스듀서용 PZT-고분자 3-3형 복합압전체의 유전 및 압전특성
Abstract
PZT powders were prepared by the molten salt synthesis method. The porous PZT ceramics were made from a mixture of PZT and polyvinylalcohol(PVA) by BURPS(Bumout Plastic Sphere) technique. The 3-3 type composites were fabricated by impregnating an sintered porous PZT ceramics with various polymer matrices. The relative permittivity of 3-3 type composite specimens was shown 860-1,100 smaller than that of solid PZT ceramics(2,100), and the dissipation factors of composite specimens were about 0.02 to 0.03. The piezoelectric coefficient d
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