Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面


Transactions of Nonferrous Metals Society of China

Vol. 30    No. 7    July 2020

[PDF Download]        


Crystal structures and elastic properties of Ti(Cu,Pt)2 and Ti(Cu,Pt)3 phases
Wei-jing ZENG, Kun HU, Hua-shan LIU, Hai-long PENG, Ge-mei CAI, Zhan-peng JIN

School of Materials Science and Engineering, Central South University, Changsha 410083, China

Abstract:This paper focused on the crystal structures of two new ternary phases, Ti(Cu,Pt)2 and Ti(Cu,Pt)3, which were studied by X-ray powder diffraction data using Rietveld method. Electron probe microanalysis was used for sample composition examination. Elastic properties of these phases were further measured by nano-indentation, and meanwhile calculated with first-principle (FP) calculations. It is found that the crystal structure of Ti(Cu,Pt)2 is of orthorhombic cell space group Amm2 (No. 38) with structural prototype of VAu2. The resolved structure of Ti(Cu,Pt)3 is of tetragonal AlPt3 type, belonging to the space group P4/mmm (No. 123). The nano-indentation measurement and FP calculations show that the elastic modulus of Ti(Cu,Pt)2 increases firstly then decreases with Pt content, whereas that of Ti(Cu,Pt)3 almost linearly increases with Pt content.


Key words: Ti-Cu-Pt phase; crystal structure; X-ray diffraction; first-principle calculations; elastic properties

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱