MATRIX EFFECT OF BOMBARDMENT-INDUCED GIBBSIAN SEGREGATION ON CU DEPLETION AT A CUXNI100-X SUBSURFACE

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	MATRIX EFFECT OF BOMBARDMENT-INDUCED GIBBSIAN SEGREGATION ON CU DEPLETION AT A CUXNI100-X SUBSURFACE
	L. P. Zheng; R. S. Li; X. Q. Xia; M. Q. Li; M. Y. Li
	1995
发表期刊	Applied Physics a-Materials Science & Processing
ISSN	0721-7250
卷号	61 期号:4 页码:419-423
摘要	A dynamic Monte-Carlo program, including an improved BIGS (Bombardment-Induced Gibbsian Segregation) model was employed to study the matrix effect of BIGS and its influence on Cu depletion at the subsurface under 1 keV Ar-ion bombardment of a Cu-Ni alloy. The calculation results show that not only at high fluences (the steady state) but also at low fluences, the Cu subsurface depletion depends on its bulk composition. This is because the atomic jump rate W-21 of Cu from the second layer to the first layer is correlated to Cu bulk composition at any fluence. We also found that the product of the non-segregating species concentration at the first layer with the segregating species concentration at the second layer plays a more important role than other parameters in determining W-21 under low current conditions.
部门归属	acad sinica,inst met res,atom imaging solids lab,shenyang 110015,peoples r china. acad sinica,int ctr mat phys,shenyang 110015,peoples r china.;zheng, lp (reprint author), acad sinica,shanghai inst nucl res,pob 800-204,shanghai 201800,peoples r china
关键词	Surface-composition Changes Ar ion-bombArdment Enhanced Diffusion Ni Alloys Temperature
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38768
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. P. Zheng,R. S. Li,X. Q. Xia,et al. MATRIX EFFECT OF BOMBARDMENT-INDUCED GIBBSIAN SEGREGATION ON CU DEPLETION AT A CUXNI100-X SUBSURFACE[J]. Applied Physics a-Materials Science & Processing,1995,61(4):419-423.
APA	L. P. Zheng,R. S. Li,X. Q. Xia,M. Q. Li,&M. Y. Li.(1995).MATRIX EFFECT OF BOMBARDMENT-INDUCED GIBBSIAN SEGREGATION ON CU DEPLETION AT A CUXNI100-X SUBSURFACE.Applied Physics a-Materials Science & Processing,61(4),419-423.
MLA	L. P. Zheng,et al."MATRIX EFFECT OF BOMBARDMENT-INDUCED GIBBSIAN SEGREGATION ON CU DEPLETION AT A CUXNI100-X SUBSURFACE".Applied Physics a-Materials Science & Processing 61.4(1995):419-423.