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	Effect of Different Forms of Silica on Sintering, Microstructure and Properties of Borosilicate Glass/Al_2O_3 Composites
	Liu M(刘明) ; ZHOU Hongqing ; ZHU Haikui ; YUE Zhenxing ; ZHAO Jianxin ; LIU Ming ; ZHOU Hongqing ; ZHU Haikui ; YUE Zhenxing ; ZHAO Jianxin
	2016-03-30 ; 2016-03-30
关键词	LTCC Ca-Al-B-Si-O glass Al2O3 silica glass silica ceramic microstructure TB332
其他题名	Effect of Different Forms of Silica on Sintering, Microstructure and Properties of Borosilicate Glass/Al_2O_3 Composites
中文摘要	The effects of the introduction of silica glass and silica ceramic into Ca-Al-B-Si-O glass/ Al2O3 composites on decreasing the shrinkage and the dielectric constant of samples were investigated by FTIR, DSC, XRD and SEM. The results show that silica ceramic filler can better improve the formation of Si– O–Si network in the composites under high temperature, which leads to increased continuity of glass network at high temperature, and deduces the increase of viscosity of composites and further results in the decrease in the shrinkage of samples. Densification, three-point strength, and dielectric constant of samples decrease with the increase of silica glass or silica ceramic content. By contrast, Ca-Al-B-Si-O glass/Al2O3 composites with 4 wt% silica ceramic exhibit better properties of a bulk density of 2.81 g cm-3, a porosity of 0.3%, a 3dp value of 202 MPa, a ε r value of 7.41, a tan δ value of 8.3×10-4at 10 MHz and a well matching with Ag electrodes. This material is suitable to be used as the LTCC material for the application in wireless communications.; The effects of the introduction of silica glass and silica ceramic into Ca-Al-B-Si-O glass/ Al2O3 composites on decreasing the shrinkage and the dielectric constant of samples were investigated by FTIR, DSC, XRD and SEM. The results show that silica ceramic filler can better improve the formation of Si– O–Si network in the composites under high temperature, which leads to increased continuity of glass network at high temperature, and deduces the increase of viscosity of composites and further results in the decrease in the shrinkage of samples. Densification, three-point strength, and dielectric constant of samples decrease with the increase of silica glass or silica ceramic content. By contrast, Ca-Al-B-Si-O glass/Al2O3 composites with 4 wt% silica ceramic exhibit better properties of a bulk density of 2.81 g cm-3, a porosity of 0.3%, a 3dp value of 202 MPa, a ε r value of 7.41, a tan δ value of 8.3×10-4at 10 MHz and a well matching with Ag electrodes. This material is suitable to be used as the LTCC material for the application in wireless communications.
语种	英语 ; 英语
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/141796]
专题	清华大学
推荐引用方式 GB/T 7714	Liu M,ZHOU Hongqing,ZHU Haikui,et al. Effect of Different Forms of Silica on Sintering, Microstructure and Properties of Borosilicate Glass/Al_2O_3 Composites[J],2016, 2016.
APA	刘明.,ZHOU Hongqing.,ZHU Haikui.,YUE Zhenxing.,ZHAO Jianxin.,...&ZHAO Jianxin.(2016).Effect of Different Forms of Silica on Sintering, Microstructure and Properties of Borosilicate Glass/Al_2O_3 Composites..
MLA	刘明,et al."Effect of Different Forms of Silica on Sintering, Microstructure and Properties of Borosilicate Glass/Al_2O_3 Composites".(2016).

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