Low-temperature synthesis/densification and properties Of Si2N2O prepared with Li2O additive

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	Low-temperature synthesis/densification and properties Of Si2N2O prepared with Li2O additive
	Q. F. Tong; J. Y. Wang; Z. P. Li; Y. C. Zhou
	2007
发表期刊	Journal of the European Ceramic Society
ISSN	0955-2219
卷号	27 期号:16 页码:4767-4772
摘要	Dense Si2N2O was successfully synthesized using 2 mol% Li2O as an additive by a hot-pressing method at 1500 degrees C. Compared to other metal oxide additives, Li2O can significantly decrease the sintering temperature of Si2N2O, which is ascribed to the lower melting point of Li2O-SiO2 and the formation of less viscous liquid phase. Increasing Li2O content has no apparent influence on the mechanical and dielectric properties of dense Si2N2O, which is due to the easy evaporation of Li2O at sintering temperature. The mechanical properties of Si2N2O with Li2O additive are comparable to those of Si2N2O synthesized with other additives. The as-prepared bulk Si2N2O with 2 mol% Li2O additive exhibits both low dielectric constant (6.17 at 1 MHz) and loss tangent (0.0008 at 1 MHz) and combines good mechanical performance, indicating it is a potential high-temperature structural/functional material. (C) 2007 Elsevier Ltd. All rights reserved.
部门归属	[tong, qingfeng; wang, jingyang; zhou, yanchun] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [li, zhongping] natl key lab adv funct composite mat, beijing 100076, peoples r china.;zhou, yc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;yczhou@imr.ac.cn
关键词	Si2n2o Sintering Mechanical Properties Dielectric Properties Silicon Oxynitride Ceramics Thermal-conductivity Nitride Densification Toughness Strength Yttria System
URL	查看原文
WOS记录号	WOS:000251803600041
引用统计	被引频次：61[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33840
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. F. Tong,J. Y. Wang,Z. P. Li,et al. Low-temperature synthesis/densification and properties Of Si2N2O prepared with Li2O additive[J]. Journal of the European Ceramic Society,2007,27(16):4767-4772.
APA	Q. F. Tong,J. Y. Wang,Z. P. Li,&Y. C. Zhou.(2007).Low-temperature synthesis/densification and properties Of Si2N2O prepared with Li2O additive.Journal of the European Ceramic Society,27(16),4767-4772.
MLA	Q. F. Tong,et al."Low-temperature synthesis/densification and properties Of Si2N2O prepared with Li2O additive".Journal of the European Ceramic Society 27.16(2007):4767-4772.