【摘要】 Ｘ射线衍射测试表明，用氧化物烧结法制备的ＰＺＴ粉末，其Ｚｒ与Ｔｉ的原子比为５２：４８， 为纯四方钙钛矿型结晶相；用模压／烧结工艺制备了六种含 ＰＺＴ不同体积分数的 ＰＺＴ／ＰＶＤＦ复合材 料；介电性和压电性的测试表明，随着 ＰＺＴ体积分数的增加，材料的电性能参数呈非线性增大，当 ＰＺＴ 的体积分数超过 ７０％时，介电常数。和压电常数 ｄ３３值迅速增加，当 ＰＺＴ体积分数达到 ９０％时，其 电性能与纯 ＰＺＴ相当。更多还原

【Abstract】 PZT powders were made using oxide sintering technique. X-ray diffraction (XRD) peaks of powders were monitored and showed that PZT was in crystallization phase of pure square with Zr/Ti of 52:48. The pattern of the PZT powder was observed with SEMI the mold technique of PVDF was analyzed by TG-DTA. Six sorts of PZT/PVDF composites were obtained with different PZT volume ratio by compression moulding/sintering technique. Tests of dielectric and piezoelectric showed that electric parameter accretion with PZT content increased nonlinearly, when the volume content of PZT exceeds 70%, dielectric constantε and piezoeclectric constant increased rapidly, when it reached 90% the electric parameters were almost the same as the pure PZT’s.更多还原