【摘要】 以PZT和PVDF为原料,采用热压和冷压两种工艺制备了0-3型压电复合材料,其中PZT陶瓷粉末由sol-gel法制得。研究了不同因素对复合材料压电和介电性能的影响。实验结果表明在相同成型压力下,PZT体积含量为70%时,热压和冷压工艺制备的复合材料d33分别为41和24,相差达到17,而ε相差最大值达到32.4。更多还原

【Abstract】 0-3 composites materials were prepared from PZT and PVDF by hot-pressed and cold-pressed methods.The PZT piezoelectric powders were prepared by sol-gel method.The effect of different factors on the piezoelectric and dielectric properties in the composite was studied.The experimental results show that at the same pressure when the PZT content is 70%,d 33 of composite materials with the hot-press and cold-press method reached 41 and 24,and the maximal difference of d 33 between the two methods is 17.Just like this,the maximal difference of ε is 32.4.更多还原