Effect of surface orientation on reactive wetting of sapphire by Al-Ti alloys at 1273 K

doi:10.1016/j.matchemphys.2022.126187

	Effect of surface orientation on reactive wetting of sapphire by Al-Ti alloys at 1273 K
	Sui, Ran 1; Chang, Jinghuan 1; Lin, Qiaoli 2
刊名	MATERIALS CHEMISTRY AND PHYSICS
	2022-06-01
卷号	285
关键词	Wettability Anisotropy Interfacial energy Surface
ISSN号	0254-0584
DOI	10.1016/j.matchemphys.2022.126187
英文摘要	The effect of surface orientation on the reactive wetting of sapphire by Al-Ti alloys was studied by the modified sessile drop method at 1273 K under a high vacuum atmosphere. The monocrystal alpha-Al2O3 (sapphire) substrates with different atomic termination surfaces were selected in this study, i.e., C (0,0,0,1), R (1 1(-),0,2), and M (1 1( -),0,0) faces. The order of wettability is R > C asymptotic to polycrystalline substrate > M, and the final contact angles are 65 +/-& nbsp;0.1 (R), 76 +/-& nbsp;0.2 (C), 76 +/-& nbsp;0.3 (polycrystalline), and 84 +/-& nbsp;0.3 (M), respectively. The addition of Ti does not result in the formation of the continuous reaction layer, but it may contribute to the reaction of 4Al(l)+ Al2O3 (s)-> 3Al2O(g)up arrow & nbsp;. When the interfacial bonding is mainly chemical, the wettability depends on the bonding energy between the terminal atoms of the crystal face and the atoms of the liquid phase. The higher the bonding energy, the better the wettability.
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000800427000002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158670]
专题	材料科学与工程学院
作者单位	1.Lanzhou Inst Technol, Dept Mat Sci & Engn, 1 Gongjiaping East Rd, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, 287 Langongping Rd, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Sui, Ran,Chang, Jinghuan,Lin, Qiaoli. Effect of surface orientation on reactive wetting of sapphire by Al-Ti alloys at 1273 K[J]. MATERIALS CHEMISTRY AND PHYSICS,2022,285.
APA	Sui, Ran,Chang, Jinghuan,&Lin, Qiaoli.(2022).Effect of surface orientation on reactive wetting of sapphire by Al-Ti alloys at 1273 K.MATERIALS CHEMISTRY AND PHYSICS,285.
MLA	Sui, Ran,et al."Effect of surface orientation on reactive wetting of sapphire by Al-Ti alloys at 1273 K".MATERIALS CHEMISTRY AND PHYSICS 285(2022).