Surface energy calculation of the fcc metals by using the MAEAM

被引:223
作者
Wen, Yan-Ni
Zhang, Han-Min
机构
[1] Ankang Univ, Ankang 725000, Peoples R China
[2] Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Peoples R China
基金
中国国家自然科学基金;
关键词
fcc; MAEAM; surface energy;
D O I
10.1016/j.ssc.2007.07.012
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The surface energies of 40 surfaces for fee metals Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au and Al have been calculated by using the MAEAM. The results show that, for all fcc metals, the surface energies of (110) are higher than that of the (100) and (I 11) surfaces, the order of three low-index surface energies is E-s (111) < E-s(100) < E-s(100). In all the (hkl) planes of fcc metals, the lowest surface energy corresponds to the (111) surface and the highest surface energy corresponds to the (210) surface except that, for Rh it is a (320) surface. So from surface energy minimization, the (I 11) texture should be favorable in the fcc films. The surface energy corresponding to the other surface increases linearly with increasing angle between the (hkl) planes and (I 11) plane by and large. This can be used to estimate the relative values of the surface energies. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:163 / 167
页数:5
相关论文
共 36 条
[1]   SEMIEMPIRICAL CALCULATION OF SOLID-SURFACE TENSIONS IN BODY-CENTERED CUBIC TRANSITION-METALS [J].
ACKLAND, GJ ;
FINNIS, MW .
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1986, 54 (02) :301-315
[2]   DEVELOPMENT OF AN EMBEDDED-ATOM POTENTIAL FOR A BCC METAL - VANADIUM [J].
ADAMS, JB ;
FOILES, SM .
PHYSICAL REVIEW B, 1990, 41 (06) :3316-3328
[3]  
BARRETT GS, 1980, STRUCTURE METALS, P629
[4]   SEMIEMPIRICAL MODIFIED EMBEDDED-ATOM POTENTIALS FOR SILICON AND GERMANIUM [J].
BASKES, MI ;
NELSON, JS ;
WRIGHT, AF .
PHYSICAL REVIEW B, 1989, 40 (09) :6085-6100
[6]   MODIFIED EMBEDDED-ATOM POTENTIALS FOR CUBIC MATERIALS AND IMPURITIES [J].
BASKES, MI .
PHYSICAL REVIEW B, 1992, 46 (05) :2727-2742
[7]  
Brandes EA, 1983, SMITHELLS METALS REF, P5
[8]   EMBEDDED-ATOM METHOD - DERIVATION AND APPLICATION TO IMPURITIES, SURFACES, AND OTHER DEFECTS IN METALS [J].
DAW, MS ;
BASKES, MI .
PHYSICAL REVIEW B, 1984, 29 (12) :6443-6453
[9]   SEMIEMPIRICAL, QUANTUM-MECHANICAL CALCULATION OF HYDROGEN EMBRITTLEMENT IN METALS [J].
DAW, MS ;
BASKES, MI .
PHYSICAL REVIEW LETTERS, 1983, 50 (17) :1285-1288
[10]   Modified analytic EAM potentials for the binary immiscible alloy systems [J].
Fang, F ;
Shu, XL ;
Deng, HQ ;
Hu, WY ;
Zhu, M .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 355 (1-2) :357-367