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	Preparation and electrical properties of multilayer ZnO varistors with water-based tape casting
	Wang, Lanyi ; Tang, Guoyi ; Xu, Zheng-Kui
	2010-10-12 ; 2010-10-12
关键词	ZnO Varistors Tape casting Electrical properties BARIUM-TITANATE TAPES ZINC-OXIDE VARISTORS MLCC APPLICATIONS DIFFERENT BINDERS MICROSTRUCTURE DISPERSANT IMPURITIES CERAMICS SURFACE POLYMER Materials Science, Ceramics
中文摘要	Multilayer ZnO varistors were prepared by water-based tape casting with water-soluble acrylic as binders. Zeta potentials of the doped ZnO suspensions as a function of pH with and without dispersant were measured. Viscosity measurements were used to find the optimum dispersant concentration needed to prepare a stable slurry. Viscosity properties of the tape casting slurry were investigated. The results showed that aqueous acrylic binders have shear thinning properties suitable for tape casting of ceramic powders. Scanning electron microscopy (SEM) studies revealed that the green sheets have a smooth defect-free surface and that the multilayer varistor (MLV) ceramics prepared by water-based tape casting have a fine grain microstructure with a uniform grain size and dopant distribution. The multilayer ZnO varistors prepared by water-based tape casting display comparable good electrical properties to those prepared by solvent-based tape casting. This is believed to be attributed to the well dispersed water-based slurry, which makes more uniform dopant distribution throughout the multilayer ZnO varistors. Therefore, water-based tape casting is suitable for the manufacture of high performance multilayer ZnO varistors. (C) 2008 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCI LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81706]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Lanyi,Tang, Guoyi,Xu, Zheng-Kui. Preparation and electrical properties of multilayer ZnO varistors with water-based tape casting[J],2010, 2010.
APA	Wang, Lanyi,Tang, Guoyi,&Xu, Zheng-Kui.(2010).Preparation and electrical properties of multilayer ZnO varistors with water-based tape casting..
MLA	Wang, Lanyi,et al."Preparation and electrical properties of multilayer ZnO varistors with water-based tape casting".(2010).

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