The study on elastic properties of CU3Sn under pressure via first-principle calculations

被引：0

作者：

Fan-Fan, Niu ^{[1
]}

Xing-He, Luan ^{[1
]}

Chuang, Feng ^{[1
]}

Ying-Hong, Zhang ^{[1
]}

Dao-Guo, Yang ^{[1
]}

Hong-Bo, Qin ^{[1
,2
,3
]}

Hong-Jie, Jiang ^{[2
]}

Feng-Mei, Liu ^{[3
]}

机构：

[1] Guilin Univ Elect Technol, Sch Mech & Elect Engn, Guangxi Key Lab Mfg Syst & Adv Mfg Technol, Guilin 541004, Peoples R China

[2] Guilin Univ Technol, Guangxi Minist Prov Jointly Constructed Cultivat, Guilin 541004, Peoples R China

[3] Chinese Ukrainian Inst Welding, Guangdong Inst Welding, Guangzhou 510650, Guangdong, Peoples R China

来源：

2017 18TH INTERNATIONAL CONFERENCE ON ELECTRONIC PACKAGING TECHNOLOGY (ICEPT) | 2017年

基金：

中国国家自然科学基金;

关键词：

Cu3Sn; elastic property; anisotropy; hydrostatic pressure; first-principle calculation; NANOINDENTATION; SN;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this study, elastic properties of inter metallic compound CU3Sn were calculated by first-principle based on density functional theory (DFT). To exchange correlation energy, generalized gradient approximation (GGA) function was used. Shear modulus, bulk modulus, elastic modulus and lame modulus for CU3Sn were calculated and applied to evaluate elastic properties of CU3Sn under hydrostatic pressures ranging from 0 to 60 GPa. Calculation results show that, compared with experimental values, errors of computed lattice constants are within 3%. The elastic modulus, bulk modulus, shear modulus and lame modulus of CU3Sn are all increased obviously with the rise of the hydrostatic pressure. Moreover, the anisotropy of CU3Sn is decreased with increasing pressure according to the calculation results of directional dependences of elastic moduli. Furthermore, anisotropic indices calculated under various pressures also prove the reduction of anisotropy with increasing hydrostatic pressure.

引用

页码：1207 / 1211

页数：5

共 20 条

[1] Determination of the elastic properties of Cu3Sn through first-principles calculations [J].