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
	2008
发表期刊	Journal of the American Ceramic Society
ISSN	0002-7820
卷号	91 期号:8 页码:2521-2528
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.
部门归属	[zhu, x. w.; sakka, y.] natl inst mat sci, nano ceram ctr, tsukuba, ibaraki 3050047, japan. [zhu, x. w.; sakka, y.] natl inst mat sci, wpi ctr mana, tsukuba, ibaraki 3050047, japan. [sun, z. q.; li, m. s.; zhou, y. c.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [sun, z. q.] chinese acad sci, grad sch, beijing 100039, peoples r china.;sakka, y (reprint author), natl inst mat sci, nano ceram ctr, tsukuba, ibaraki 3050047, japan;sakka.yoshio@nims.go.jp
关键词	Constant Grain-size Mechanical-properties Crystal Morphology Silicon-nitride Oxide Powders Ceramics Alumina Fabrication Deformation Stability
URL	查看原文
WOS记录号	WOS:000258379300012
引用统计	被引频次：11[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/321006/33096
专题	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.