钛酸钡基电子陶瓷材料的改性进展

doi:10.19964/j.issn.1006-4990.2021-0430

Abstract

Abstract:

Barium titanate?based electronic ceramic materials are widely used in capacitors，integrated circuits，sensors，thermistors and other fields.Industrial requirements such as capacity，miniaturization，breakdown resistance，and low loss put forward higher requirements for the performance of barium titanate?based electronic ceramic materials.Modification is the main mean to improve the performance of ceramic materials.The research progress on barium titanate?based electronic ceramic materials in doping modification，composite modification and physical modification in recent years was reviewed.The problems in the modification of barium titanate based electronic ceramics，such as insufficient optimization of preparation parameters of conventional elements，fewer types of rare earth elements，cladding effect to be improved，poor comprehensive performance of polymer ceramic composites，and sintering process to be optimized were analyzed.Solutions were proposed，such as exploring multiple element doping，optimizing process parameters，improving coating and polymerization methods，etc.The future development direction of barium titanate based electronic ceramic materials was pointed out.It was strengthening research of the mechanism of grain size，crystal shape and component regulation in the sintering process，selecting more rare earth elements for modification，and exploring new processes such as coating doping modification and polymer composite modification.

Key words: barium titanate, ceramics, modification

CLC Number:

TB34

ZOU Qingli,ZOU Jianxin. Modification progress on barium titanate?based electronic ceramic materials[J]. Inorganic Chemicals Industry, 2022, 54(6): 46-54.

Figures/Tables 2

References 63

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序号	掺杂方式	掺杂元素/化合物	掺杂量	ε_r	tan δ
1	常规元素掺杂^［10］	Al	0.03%（物质的量分数）	3 427	0.04
2	常规元素掺杂^［11］	Al₂O₃	1.5%（质量分数）	—	0.02
3	常规元素掺杂^［13］	V₂O₅	0.1%（物质的量分数）	2 886	0.036
4	常规元素掺杂^［16］	Fe₂O₃	0.5%（物质的量分数）	2 202	0.013
5	常规元素掺杂^［20］	Li	1%（质量分数）	1 051	0.000 2
6	常规元素掺杂^［20］	Na	1%（质量分数）	1 063	0.000 4
7	常规元素掺杂^［22］	ZnO-B₂O₃-SiO₂	1%（质量分数）	1 127	0.015
8	稀土掺杂^［23］	Sm₂O₃	0.01%（物质的量分数）	6 561	—
9	稀土掺杂^［25］	Nb	x=0.02，（BaTi_0.98-_x Fe_0.02Nb _x O₃）	15 000	0.15
10	稀土掺杂^［27］	La	x=0.003，（Ba_0.9Ca_0.1）_1-_x La _x （Ti_0.8Zr_0.2）O₃	18 592	0.013
11	包覆^［29］	BaTiO₃@Ag	5%（质量分数）	3 078	0.004 87
12	包覆^［30］	BaTiO₃@Ho₂O₃	2.0%（质量分数）	1 612	0.007
13	包覆^［31］	BZTZN@Al₂O₃	0.5%（质量分数）	6 972	0.006

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Modification progress on barium titanate?based electronic ceramic materials

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