六方相Mn掺杂钛酸钡陶瓷的制备及结构表征

doi:10.16039/j.cnki.cn22-1249.2018.01.012

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摘要用冷压陶瓷技术，在1400℃/12h烧结条件下制备了Ba(Ti_1－xMn_x)O₃(x=0.06～0.09)陶瓷．利用
室温 XRD 研究钛锰酸钡陶瓷的晶体结构，通过 SEM 样品微观形貌．XRD 测试结果表明: 当 x≥0.06 时，
Ba(Ti_1－xMn_x)O₃陶瓷表现为六方结构，进入到 Ti⁴⁺位的 Mn³⁺所引起的 Jahn-Teller 效应是六方相形成的驱
动力．SEM 图中观察到的棒状晶粒与六方相对应．

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	刘巧丽
	刘军伟
	杨爱宏
	路大勇

关键词: 钛酸钡锰掺杂六方相 Jahn-Teller 效应

Abstract: Ba(Ti_1－xMn_x) O₃ ceramics were prepared for x = 0．06， 0．07， 0．08 and 0．09 using a cold －pressing
ceramic technique． The crystal structure and microstructure of Ba (Ti_1－_xMn_x) O₃ ceramics were investigated
using X-ray diffraction and scanning electron microscopy． The XRD results showed that Ba(Ti_1－_x Mn_x)O₃
exhibited a hexagonal structure as x≥0．06， and Jahn-Teller distortion caused by the was a driving force for the
hexagonal phase．Columnar grain morphology observed was assigned to the hexagonal phase．

Key words: BaTiO₃ Mn-doped hexagonal phase Jahn-Teller effect

出版日期: 2018-01-25 发布日期: 2018-01-25 整期出版日期: 2018-01-25

O 614.23

引用本文:

刘巧丽, 刘军伟, 杨爱宏, 路大勇. 六方相Mn掺杂钛酸钡陶瓷的制备及结构表征[J]. 吉林化工学院学报, 2018, 35(1): 47-50.
LIU Qiao-li, LIU Jun-wei, YANG Ai-hong, LU Da-yong. Preparation and structural Characterization of Mn-doped BaTiO3 Ceramics with Hexagonal Phase. Journal of Jilin Institute of Chemical Technology, 2018, 35(1): 47-50.

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https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2018.01.012 或 https://xuebao.jlict.edu.cn/CN/Y2018/V35/I1/47

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