Surface composition changes in Au-Cu alloys: Interplay of mass-related preferential sputtering and bombardment-induced segregation

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	Surface composition changes in Au-Cu alloys: Interplay of mass-related preferential sputtering and bombardment-induced segregation
	S. Y. Li; R. S. Li
	1999
发表期刊	Surface and Interface Analysis
ISSN	0142-2421
卷号	27 期号:11 页码:957-961
摘要	The surface composition changes caused by heating and ion sputtering were studied in five Au-Cu alloys using the AES calibration curve method. A new phenomenon was found in ion-sputtered alloys: component enrichment at the near-surface region (beneath the topmost layer) is strongly related to the bulk composition. For copper-riched alloys, gold will be enriched at the near-surface region; for gold-riched alloys, copper will be enriched at the near-surface region, This phenomenon does not occur in heated alloys, so the factors governing thermo-activated segregation are excluded. Concerning the factors relating to ion sputtering, we suggest a combination of bombardment-induced Gibbsian segregation (BIGS) and mass-related preferential sputtering, both of which are related to bulk composition. Copyright (C) 1999 John Whey & Sons, Ltd.
部门归属	tsing hua univ, dept mat sci & engn, beijing 100084, peoples r china. acad sinica, inst met res, atom imaging solids lab, shenyang 110015, peoples r china.;li, sy (reprint author), tsing hua univ, dept mat sci & engn, beijing 100084, peoples r china
关键词	Surface Segregation Gold Copper Alloy Auger Electron Spectroscopy Aes Auger-electron Spectroscopy Enhanced Diffusion Room-temperature Ion-bombardment Energy Dependence
URL	查看原文
WOS记录号	WOS:000083715000001
引用统计	被引频次：8[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/321006/37405
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Y. Li,R. S. Li. Surface composition changes in Au-Cu alloys: Interplay of mass-related preferential sputtering and bombardment-induced segregation[J]. Surface and Interface Analysis,1999,27(11):957-961.
APA	S. Y. Li,&R. S. Li.(1999).Surface composition changes in Au-Cu alloys: Interplay of mass-related preferential sputtering and bombardment-induced segregation.Surface and Interface Analysis,27(11),957-961.
MLA	S. Y. Li,et al."Surface composition changes in Au-Cu alloys: Interplay of mass-related preferential sputtering and bombardment-induced segregation".Surface and Interface Analysis 27.11(1999):957-961.