Microstructure and electrical property of NaNbO3 ceramics prepared by cold sintering process assisted post-heat-treatment
Microstructure and electrical property of NaNbO3 ceramics prepared by cold sintering process assisted post-heat-treatment
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冷烧结辅助后热处理制备NaNbO3陶瓷的显微结构和电学性能
DOI：
10.1016/j.jallcom.2021.160284
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发表时间：
2021-10
影响因子：
6.2
通讯作者：
Yuezhou Wei
中科院分区：
文献类型：
--
作者：
Xinya Tang;Nengneng Luo;Qin Feng;Xiyong Chen;Yuezhou Wei
NaNbO 3（NN）陶瓷作为一种介电材料受到了广泛的关注，但存在烧结困难的缺点。本文采用冷烧结工艺辅助后热处理（CSP-PHT）制备了高性能NN陶瓷。系统研究了冷烧结工艺（CSP）和后热处理（PHT）对NN陶瓷显微结构和电性能的影响。CSP工艺制备的NN陶瓷致密度高达92.6%，经1230 °C高温高压热处理后，陶瓷致密度提高到96.9%，结晶度提高。特别令人感兴趣的是，通过CSP-PHT制备的NN陶瓷表现出典型的铁电滞回线，其具有34.2 μC/cm 2的大极化，这远高于在1300 °C下常规烧结（CS）方法的值24.8 μC/cm 2。研究表明，CSP-PHT是一种在较低烧结温度下获得高性能NN陶瓷的有效方法。
NaNbO3(NN) ceramics have attracted worldwide attention as a kind of dielectric material, but with the drawbacks of difficulty in sintering. In this work, high performance NN ceramics were achieved by using cold sintering process assisted post-heat-treatment (CSP-PHT). The effects of cold sintering process (CSP) and post-heat-treatment (PHT) of NN ceramics on the microstructure and electrical properties were systematically investigated. High dense NN ceramics with relative density of 92.6% were achieved by CSP, which increased to 96.9% with improved crystallinity after PHT at 1230 °C. Of particular interest is that the NN ceramics prepared by CSP-PHT exhibited typical ferroelectric hysteresis loops with large polarization of 34.2 μC/cm2, which is much higher than the conventional sintering (CS) method at 1300 °C with value of 24.8 μC/cm2. Our work shows that CSP-PHT is an effective method to obtain high-performance NN ceramics at lower sintering temperature.
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影响因子：
16.6
作者：
Guo, Jing;Guo, Hanzheng;Randall, Clive A.
通讯作者：
Randall, Clive A.
影响因子：
2.5
作者：
R. Shakhovoy;S. I. Raevskaya;L. A. Shakhovaya;D. V. Suzdalev;I. Raevski;Y. Yuzyuk;A. F. Semenchev;M. Marssi
通讯作者：
R. Shakhovoy;S. I. Raevskaya;L. A. Shakhovaya;D. V. Suzdalev;I. Raevski;Y. Yuzyuk;A. F. Semenchev;M. Marssi
冷烧结辅助烧结K0.5Na0.5NbO3陶瓷的成分、显微结构和电性能
影响因子：
5.7
作者：
Ma Jianzhang;Li Hanying;Wang Huajing;Lin Cong;Wu Xiao;Lin Tengfei;Zheng Xinghua;Yu Xing
通讯作者：
Yu Xing
影响因子：
5.7
作者：
Victor Zamora;A. L. Ortiz;F. Guiberteau;M. Nygren
通讯作者：
Victor Zamora;A. L. Ortiz;F. Guiberteau;M. Nygren
DOI：
10.1080/14786440508520582
发表时间：
1955-05
期刊：
Philosophical Magazine Series 1
影响因子：
--
作者：
L. Cross;B. J. Nicholson
通讯作者：
L. Cross;B. J. Nicholson