Phase evolutions of high energy ball milled Ni-66.7at% Si

	Phase evolutions of high energy ball milled Ni-66.7at% Si
	Ji, Genhun; Ma, Qin; Guo, Tieming; Zhou, Qi; Jia, Jiangang; Chen, Xueding
	2007
关键词	nickel silicide ball milling phase transitions x-ray diffraction
卷号	336-338
页码	2325-+
英文摘要	The high-energy ball milling of Ni-66.7 at% Si elemental powder mixtures was carried out using a FRITSCH Puluerisette-5 mill. XRD was used to identify the phase evolutions during high-energy ball milling. The XRD patterns showed that the intensities of nickel peaks and silicon peaks gradually decreased with milling time increased from 1 h to 10 h, simultaneously, the peaks of NiSi2 and NiSi appeared. With milling time further increased to 45 h, single phase of NiSi2 formed. New peaks were observed after 75 h milling, which were indexed as FeSi. This reveals that long time high-energy ball milling: will induce Fe contamination and that Fe exhibits greater activity and reacts with NiSi2 forming FeSi and NiSi. Moreover, the peaks intensity of FeSi and NiSi increased with milling time increased from 75 h to 180 h. The phase evolutions of Ni-66.7 at% Si during high energy ball milling were discussed.
会议录	HIGH-PERFORMANCE CERAMICS IV, PTS 1-3
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
语种	英语
WOS研究方向	Materials Science
WOS记录号	WOS:000246148002148
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/38162]
专题	材料科学与工程学院外国语学院
通讯作者	Ji, Genhun
作者单位	Lanzhou Univ Technol, Minist Educ, Key Lab Nonferrous Metal Alloys, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Ji, Genhun,Ma, Qin,Guo, Tieming,et al. Phase evolutions of high energy ball milled Ni-66.7at% Si[C]. 见:.