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Bi(NiTi)O-BiFeO-Pb(ZrTi)O陶瓷的低温烧结及其性能

Low-Temperature Sintering of Bi(NiTi)O-BiFeO-Pb(ZrTi)O Ceramics and Their Performance.

作者信息

Wang Wuyang, Wang Shihao, Sun Jun, Wang Qiushi, Fang Bijun

机构信息

Bell Honors School, Nanjing University of Posts and Telecommunications, Nanjing 210023, China.

School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, China.

出版信息

Materials (Basel). 2023 Apr 28;16(9):3459. doi: 10.3390/ma16093459.

DOI:10.3390/ma16093459
PMID:37176340
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10180173/
Abstract

A low-temperature sintering strategy was realized for preparing 0.21Bi(NiTi)O-0.05BiFeO-0.74Pb(ZrTi)O (0.21BNT-0.05BF-0.74PZT) ceramics by conventional ceramic processing by adding low melting point BiFeO and additional sintering aid LiBO. Pure perovskite 0.21BNT-0.05BF-0.74PZT ceramics are prepared at relatively low sintering temperatures, and their structure presents tetragonal distortion that is affected slightly by the sintering temperature. The 1030 °C sintered samples have high densification accompanied by relatively large grains. All ceramics have excellent dielectric performance with a relatively high temperature of dielectric constant maximum, and present an apparent relaxation characteristic. A narrow sintering temperature range exists in the 0.21BNT-0.05BF-0.74PZT system, and the 1030 °C sintered 0.21BNT-0.05BF-0.74PZT ceramics exhibit overall excellent electrical performance. The high-temperature conductivity can be attributed to the oxygen vacancies' conduction produced by the evaporation of Pb and Bi during sintering revealed by energy dispersive X-ray measurement.

摘要

通过传统陶瓷工艺，采用添加低熔点BiFeO和额外烧结助剂LiBO的方法，实现了一种低温烧结策略，用于制备0.21Bi(NiTi)O-0.05BiFeO-0.74Pb(ZrTi)O（0.21BNT-0.05BF-0.74PZT）陶瓷。纯钙钛矿结构的0.21BNT-0.05BF-0.74PZT陶瓷在相对较低的烧结温度下制备而成，其结构呈现四方畸变，且受烧结温度的影响较小。1030℃烧结的样品具有较高的致密度，同时伴有相对较大的晶粒。所有陶瓷都具有优异的介电性能，介电常数最大值对应的温度较高，并且呈现出明显的弛豫特性。0.21BNT-0.05BF-0.74PZT体系存在较窄的烧结温度范围，1030℃烧结的0.21BNT-0.05BF-0.74PZT陶瓷展现出总体优异的电学性能。高温电导率可归因于能量色散X射线测量所揭示的烧结过程中Pb和Bi蒸发产生的氧空位传导。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/fe28b23f6e9c/materials-16-03459-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/444168b92531/materials-16-03459-g001a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/a92f27ce7df2/materials-16-03459-g002a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/4ea34827ffd1/materials-16-03459-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/152ad4d47053/materials-16-03459-g004a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/7d60df1ccaec/materials-16-03459-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/78c21c054a2c/materials-16-03459-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/f8b4a8bae4a9/materials-16-03459-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/de1dc96903d6/materials-16-03459-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/cd9fc3d19e28/materials-16-03459-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/fe28b23f6e9c/materials-16-03459-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/444168b92531/materials-16-03459-g001a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/a92f27ce7df2/materials-16-03459-g002a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/4ea34827ffd1/materials-16-03459-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/152ad4d47053/materials-16-03459-g004a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/7d60df1ccaec/materials-16-03459-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/78c21c054a2c/materials-16-03459-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/f8b4a8bae4a9/materials-16-03459-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/de1dc96903d6/materials-16-03459-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/cd9fc3d19e28/materials-16-03459-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8bb/10180173/fe28b23f6e9c/materials-16-03459-g010.jpg

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本文引用的文献

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Ultrahigh piezoelectricity in ferroelectric ceramics by design.通过设计实现铁电陶瓷中的超高压电性。
Nat Mater. 2018 Apr;17(4):349-354. doi: 10.1038/s41563-018-0034-4. Epub 2018 Mar 19.
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