Tailoring texture of gamma-Y2Si2O7 by strong magnetic field alignment and two-step sintering

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	Tailoring texture of gamma-Y2Si2O7 by strong magnetic field alignment and two-step sintering
	Z. Q. Sun ; X. W. Zhu ; M. S. Li ; Y. C. Zhou ; Y. Sakka
刊名	Journal of the American Ceramic Society
	2008
卷号	91 期号:8 页码:2521-2528
关键词	constant grain-size mechanical-properties crystal morphology silicon-nitride oxide powders ceramics alumina fabrication deformation stability
ISSN号	0002-7820
中文摘要	In this study, a well-dispersed gamma-Y2Si2O7 ethanol-based suspension with 30 vol% solid loading was prepared by adding 1 dwb% polyethylene imine dispersant, which allows feeble magnetic gamma-Y2Si2O7 particles with anisotropic magnetic susceptibility to rotate in a 12 T strong magnetic field during slip casting, resulting in the development of a strong (20 (2) over bar) texture in green bodies. Pressureless sintering gives rise to more pronounced grain growth in the textured sample than in the untextured sample prepared without the magnetic field due to the rapid migration of the grain boundaries of the well-oriented grains, which was revealed by constant-heating-rate sintering kinetics. It was found that the use of two-step sintering is very efficient not only for inhibiting the grain growth but also for enhancing the (20 (2) over bar) texture. This implies that controlled grain growth is crucial for enhancing texture development in gamma-Y2Si2O7.
原文出处	://WOS:000258379300012
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/33096]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Q. Sun,X. W. Zhu,M. S. Li,et al. Tailoring texture of gamma-Y2Si2O7 by strong magnetic field alignment and two-step sintering[J]. Journal of the American Ceramic Society,2008,91(8):2521-2528.
APA	Z. Q. Sun,X. W. Zhu,M. S. Li,Y. C. Zhou,&Y. Sakka.(2008).Tailoring texture of gamma-Y2Si2O7 by strong magnetic field alignment and two-step sintering.Journal of the American Ceramic Society,91(8),2521-2528.
MLA	Z. Q. Sun,et al."Tailoring texture of gamma-Y2Si2O7 by strong magnetic field alignment and two-step sintering".Journal of the American Ceramic Society 91.8(2008):2521-2528.