Piezoelectrics & Acoustooptics, Volume. 42, Issue 6, 814(2020)

Effects of LiF/Li2CO3 on the Sintering Behavior and Piezoelectric Properties of PZT Ceramics

ZHAO Shiyan1 and HU Wangfeng2、*
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    The Pb(Zr0.52Ti0.48)O3+x%LiF/Li2CO3(PZT+x%LiF) and Pb(Zr0.52Ti0.48)O3+y%Li2CO3(PZT+y%Li2CO3) (x and y are the mass fractions) piezoelectric ceramics were prepared by solid state process in this paper. The effects of different x and y on the sintering behavior, crystal structure, microstructure and piezoelectric properties of PZT ceramics have been investigated. With the increase of x and y, the tetragonal phase cell ratio (c/a) of PZT piezoelectric ceramics decreases, but when x is equal to y, the c/a of PZT+x%LiF is smaller than that of PZT+y%Li2CO3, while the Curie temperature is basically unchanged, and the piezoelectric properties of PZT+x%LiF and PZT+y%Li2CO3 decrease after a small increase. The piezoelectric properties of LIF/Li2CO3 and PZT+y%Li2CO3 are the best when x=y=0.2. The results show that the addition of LiF/Li2CO3 can promote the low temperature sintering and increase density; at a sintering temperature of 1 100 ℃, the properties of Li2CO3 samples are better than that of LiF, and the low-temperature sintering effect is better, but at a more amount of doping amount, LiF has less effect on the property deterioration.

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    ZHAO Shiyan, HU Wangfeng. Effects of LiF/Li2CO3 on the Sintering Behavior and Piezoelectric Properties of PZT Ceramics[J]. Piezoelectrics & Acoustooptics, 2020, 42(6): 814

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    Paper Information

    Received: Nov. 12, 2020

    Accepted: --

    Published Online: Apr. 21, 2022

    The Author Email: Wangfeng HU (huwangfeng7159@sina.com)

    DOI:10.11977/j.issn.1004-2474.2020.06.019

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