Structure Simulation Calculation of Impurities B with Fe, Al or Ca in Metallurgical Grade Silicon

被引:0
作者
Xie, Keqiang [1 ]
Tang, Jianwen [1 ]
Chen, Xiumin [1 ]
Ma, Wenhui [1 ]
Yang, Bin [1 ]
Liu, Zili [2 ]
机构
[1] Kunming Univ Sci & Technol, Fac Met & Engn, Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R China
[2] Kunming Met Coll, Fac Met & Mat, Kunming 650033, Peoples R China
来源
ADVANCED MATERIALS SCIENCE AND TECHNOLOGY, (IFAMST-8) | 2013年 / 750卷
基金
中国国家自然科学基金;
关键词
Metallurgical-grade silicon; Boron; MD simulations; Density of states; ENERGY;
D O I
10.4028/www.scientific.net/MSF.750.216
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Ab initio molecular dynamics (MD) calculations had been performed in this work to simulate the interactions of B with Fe, Al or Ca in metallurgical-grade silicon (MG-Si). The temperature of the MD simulations is OK, the simulation time is lps. All the calculations were performed by using the CASTEP module of Materials Studio 4.3 software package. The geometry optimizations of impurities B with Fe, Al and Ca in MG-Si were performed with density functional theory (DFT) calculation. The Density of States of the optimized structures was calculated and the results have the potential application in guiding the boron removal from MG-Si by acid leaching.
引用
收藏
页码:216 / +
页数:2
相关论文
共 9 条
  • [1] DENSITY FUNCTIONAL CALCULATIONS OF MOLECULAR-BOND ENERGIES
    BECKE, AD
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1986, 84 (08) : 4524 - 4529
  • [2] [蔡靖 CAI Jing], 2009, [材料导报, Materials Review], V23, P81
  • [3] FINITE BASIS SET CORRECTIONS TO TOTAL ENERGY PSEUDOPOTENTIAL CALCULATIONS
    FRANCIS, GP
    PAYNE, MC
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (19) : 4395 - 4404
  • [5] A BROYDEN-FLETCHER-GOLDFARB-SHANNO OPTIMIZATION PROCEDURE FOR MOLECULAR GEOMETRIES
    HEAD, JD
    ZERNER, MC
    [J]. CHEMICAL PHYSICS LETTERS, 1985, 122 (03) : 264 - 270
  • [6] ACCURATE AND SIMPLE DENSITY FUNCTIONAL FOR THE ELECTRONIC EXCHANGE ENERGY - GENERALIZED GRADIENT APPROXIMATION
    PERDEW, JP
    YUE, W
    [J]. PHYSICAL REVIEW B, 1986, 33 (12): : 8800 - 8802
  • [7] Relaxation of crystals with the quasi-Newton method
    Pfrommer, BG
    Cote, M
    Louie, SG
    Cohen, ML
    [J]. JOURNAL OF COMPUTATIONAL PHYSICS, 1997, 131 (01) : 233 - 240
  • [8] SOFT SELF-CONSISTENT PSEUDOPOTENTIALS IN A GENERALIZED EIGENVALUE FORMALISM
    VANDERBILT, D
    [J]. PHYSICAL REVIEW B, 1990, 41 (11): : 7892 - 7895
  • [9] Removal of iron from metallurgical grade silicon with pressure leaching
    Xie, Keqiang
    Yu, Zhanliang
    Ma, Wenhui
    Zhou, Yang
    Dai, Yongnian
    [J]. ADVANCED MATERIAL SCIENCE AND TECHNOLOGY, PTS 1 AND 2, 2011, 675-677 : 873 - 876