制备工艺对PZT陶瓷压电性能的影响
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国家自然科学基金资助项目(51577015)

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Effect of Preparation Process on Piezoelectric Properties of PZT
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    摘要:

    分别采用两步预烧工艺和传统一次预烧工艺制备了0.13Pb(Ni1/3Nb2/3)O3-0.01Pb(Zn1/3Nb2/3)O3 -0.86Pb0.82Ba0.08Sr0.10TixZr1-xO3(0.48≤x≤0.51)陶瓷粉体,再通过传统固相烧结法将两种粉体制备成压电陶瓷。研究了前驱体煅烧工艺和锆钛比对压电陶瓷性能的影响。结果表明,两种制备的压电陶瓷均为纯净的钙钛矿结构。两步预烧法可提高陶瓷的压电、机电性能,但介电性能降低。两步预烧法制备陶瓷的压电常数d33最高可达884 pC/N,平面机电耦合系数kp可达66.4%,相对介电常数εr为5 742。采用传统固相法制备陶瓷的d33和kp分别降低到755 pC/N和56.1%,εr则提高到7 324。

    Abstract:

    The 0.13Pb(Ni1/3Nb2/3)O3-0.01Pb(Zn1/3Nb2/3)O3-0.86Pb0.82Ba0.08Sr0.1TixZr1-xO3 (0.48≤x≤0.51) ceramic powders were prepared by the twostep precalcination process and the conventional onestep precalcination process respectively. Then the piezoelectric ceramics were fabricated from these two kinds of powders by the conventional solid phase sintering processes. The effects of the precursor calcinations process and the Zr/Ti ratio on the piezoelectric ceramic properties were investigated. The results showed that both of the piezoelectric ceramics exhibited pure perovskite structure, the twostep calcination process could significantly improve the piezoelectric and electromechanical properties, while the dielectric properties are degraded. The piezoelectric constant d33,electromechanical coefficient kp,and the relative permittivity εr of ceramics prepared by the twostep calcinations process were found to be 884 pC/N,66.4%,5 742,respectively. The piezoelectric constant d33,electromechanical coefficient kp and the relative permittivity εr of the ceramics prepared by the conventional solid state reaction method were found to be 755 pC/N and 56.1% and 7 324,respectively.

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陈森, 李坤, 成炎炎, 方必军.制备工艺对PZT陶瓷压电性能的影响[J].压电与声光,2017,39(5):702706-. CHEN Sen, LI Kun, CHENG Yanyan, FANG Bijun. Effect of Preparation Process on Piezoelectric Properties of PZT[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2017-10-10
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