Effect of interfacial energy on microstructure of a directionally solidified Al2O3/YAG eutectic ceramic

IMR OpenIR

	Effect of interfacial energy on microstructure of a directionally solidified Al2O3/YAG eutectic ceramic
	Wang, X; Zhong, YJ; Wang, D; Sun, LC; Jiang, BL; Wang, JY; Zhong, YJ (reprint author), Xian Shiyou Univ, Sch Mat Sci & Engn, Xian, Shaanxi, Peoples R China.; Wang, JY (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang, Liaoning, Peoples R China.
	2018-03-01
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
卷号	101 期号:3 页码:1029-1035
摘要	An Al2O3/ Y3Al5O12 eutectic ceramic was prepared with a c- axis sapphire seed by an optical floating zone furnace. The crystallographic relationships in the initial and the steady growth sections of the as- grown eutectic ceramic were investigated by electron backscattering diffraction and transmission electron microscopy. The corresponding results were: < 111 > {101} Y3Al5O12 \|\| < 0001 > {11 - 20} Al2O3 and < 110 > {2 - 11} Y3Al5O12 \|\| < 1 - 100 > {0001} Al2O3, respectively. The steady orientation of the latter one shows smaller planar disregistry. Interfacial strain played the decisive role in affecting the solidification behavior of the Al2O3/ Y3Al5O12 eutectic ceramic. The stability of interfaces with minimum interfacial strain and better ionic charge balance in irregular microstructure prevail upon the constraint of the seed. These results might cast light for the interfacial design of the Al2O3/ Y3Al5O12 binary eutectic ceramic.; An Al2O3/ Y3Al5O12 eutectic ceramic was prepared with a c- axis sapphire seed by an optical floating zone furnace. The crystallographic relationships in the initial and the steady growth sections of the as- grown eutectic ceramic were investigated by electron backscattering diffraction and transmission electron microscopy. The corresponding results were: < 111 > {101} Y3Al5O12 \|\| < 0001 > {11 - 20} Al2O3 and < 110 > {2 - 11} Y3Al5O12 \|\| < 1 - 100 > {0001} Al2O3, respectively. The steady orientation of the latter one shows smaller planar disregistry. Interfacial strain played the decisive role in affecting the solidification behavior of the Al2O3/ Y3Al5O12 eutectic ceramic. The stability of interfaces with minimum interfacial strain and better ionic charge balance in irregular microstructure prevail upon the constraint of the seed. These results might cast light for the interfacial design of the Al2O3/ Y3Al5O12 binary eutectic ceramic.
部门归属	[wang, xu ; jiang, bailing] xian univ technol, sch mat sci & engn, xian, shaanxi, peoples r china ; [zhong, yujie] xian shiyou univ, sch mat sci & engn, xian, shaanxi, peoples r china ; [wang, dong] chinese acad sci, superalloys div, inst met res, shenyang, peoples r china ; [sun, luchao ; wang, jingyang] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang, liaoning, peoples r china
关键词	High-temperature Applications Yttrium-aluminum-garnet Fracture Composites Crystal Growth Melt Stability Mechanism Strength
学科领域	Materials Science, Ceramics
资助者	Equipment Pre-Research Foundation of China [6140759040102, 6140923040203]; National Natural Science Foundation of China [51701156, 51402313]
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79474
专题	中国科学院金属研究所
通讯作者	Zhong, YJ (reprint author), Xian Shiyou Univ, Sch Mat Sci & Engn, Xian, Shaanxi, Peoples R China.; Wang, JY (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Wang, X,Zhong, YJ,Wang, D,et al. Effect of interfacial energy on microstructure of a directionally solidified Al2O3/YAG eutectic ceramic[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2018,101(3):1029-1035.
APA	Wang, X.,Zhong, YJ.,Wang, D.,Sun, LC.,Jiang, BL.,...&Wang, JY .(2018).Effect of interfacial energy on microstructure of a directionally solidified Al2O3/YAG eutectic ceramic.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,101(3),1029-1035.
MLA	Wang, X,et al."Effect of interfacial energy on microstructure of a directionally solidified Al2O3/YAG eutectic ceramic".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 101.3(2018):1029-1035.