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首页> 外文期刊>Materials Chemistry and Physics >Effect of sintering condition on microstructure and dielectric properties of BSTN composite ceramics
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Effect of sintering condition on microstructure and dielectric properties of BSTN composite ceramics

机译：烧结条件对BSTN复合陶瓷微观结构和介电性能的影响

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摘要

The effect of sintering condition on the phase composition, microstructure and dielectric properties of barium strontium titanate niobate (BSTN) composite ceramics, in which the perovskite phase and the tungsten bronze phase coexisted, was investigated by XRD, SEM and LCZ Meter. The results show that more Sr~(2+) ions dissolved from the grain boundaries into the crystal lattice of the pervoskite phase and the tungsten bronze phase, especially, into the lattice of the pervoskite phase with the increasing of sintering temperature and sintering time, respectively. So the Curie temperature point decreases with the increasing of sintering temperature. The crystal growth rate of the tungsten bronze phase is higher than that of the perovskite phase in BSTN composite ceramics as the sintering temperature increases. The reasonable sintering temperature is about 1275℃ for BSTN composite ceramics. The activation energy to setting up polarization in BSTN composite ceramics increases with the increase of the applied frequency.
机译：通过XRD，SEM和LCZ Meter研究了烧结条件对钙钛矿相和钨青铜相共存的钛酸钡钛酸锶钡（BSTN）复合陶瓷的相组成，微观结构和介电性能的影响。结果表明，随着烧结温度和烧结时间的增加，更多的Sr〜（2+）离子从晶界溶解到白铁矿相和钨青铜相的晶格中，尤其是在白铁矿相的晶格中。分别。因此，居里温度点随着烧结温度的升高而降低。随着烧结温度的升高，钨青铜相的晶体生长速率高于BSTN复合陶瓷中的钙钛矿相的晶体生长速率。 BSTN复合陶瓷的合理烧结温度约为1275℃。 BSTN复合陶瓷中用于极化的活化能随施加频率的增加而增加。

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