机械合金化合成Ti-Al-Si金属间化合物的XRD研究  

XRD Analyses of the Ti-Al-Si Intermetallic Compounds Prepared by MA

作　　者：吴建鹏[1] 曹丽云[1] 黄剑锋[1] 贺海燕[1] 

机构地区：[1]陕西科技大学,陕西西安710021

出　　处：《稀有金属材料与工程》2008年第A01期573-575,共3页Rare Metal Materials and Engineering

基　　金：陕西省教育厅科学研究项目(06JK334)

摘　　要：采用普通钢球为研磨介质,以单质Al、Ti和Si为原料,对Ti_(30)Al_(60)-Si_(10)、Ti_(50)-Al_(40)-Si_(10)、Ti_(60)-Al_(20)-Si_(20)、Ti_(70)-Al_(30)-Si_(10)等在无保护气氛和非真空条件下,即低成本条件下进行球磨,获得了非晶态的金属间化合物。XRD分析表明,在球磨约30 h后就形成了Al_3Ti、AlTi_3、AlTi_2等金属间化合物;球磨至78 h时,就得到了无单质存在的Ti-Al基或Ti-Si基金属间化合物的非晶体。Amorphous intermetallic compounds of Ti-Al-Si were prepared by the mechanical alloying （MA） method which was conducted in air using Al, Ti and Si as the source materials and stainless steel ball as the grind medium. XRD analyses showed the formation of the intermetallics of Al3Ti, AlTi3, AlTi2 after 30 h grinding. The intermetallic compound of the Ti-Al system and the Ti-Si system were obtained after grinding for 78 h.

关 键 词：机械合金化(MA) 金属间化合物 非晶化合物 

分 类 号：TG146.4[一般工业技术—材料科学与工程]