内氧化法制备Al_2O_3/Cu复合材料的研究现状  

Present Status of Al_2O_3/Cu Composites Produced by Internal Oxidation

作　　者：国秀花[1] 宋克兴[1] 郜建新[1] 王旭[2] 刘瑞华[1] 

机构地区：[1]河南科技大学 [2]中国一拖集团有限公司

出　　处：《特种铸造及有色合金》2006年第10期678-680,共3页Special Casting & Nonferrous Alloys

基　　金：河南省重点科技攻关项目(0523021500);洛阳市重点科技攻关项目(020902);河南科技大学重大预研科学研究基金资助项目(2005ZD003);河南科技大学人才科学研究基金资助项目

摘　　要：综述了内氧化法制备Al2O3/Cu复合材料的研究现状,总结了内氧化法制备Al2O3/Cu复合材料的必备条件,对内氧化动力学和热力学进行了详细的阐述,并以Cu2O为氧源,采用内氧化法制备了Al2O3/Cu复合材料,验证了其优越的室温和高温性能;对以复合材料棒材为原料制备的点焊电极进行装机试验,结果表明其寿命为传统Cu-Cr-Zr电极的3～5倍;最后着重分析了内氧化法制备Al2O3/Cu复合材料发展过程中亟待解决的问题。Al_2O_3/Cu composites are attractive engineering materials for application requiring high strength,high thermal and electric conductivity and resistance to softening at an elevated temperature.Present status of preparation of Al_2O_3/Cu composites by internal oxidation and its acquiring conditions were reviewed,especially internal oxidized kinetics and thermo-kinetics.The excellent properties of the Al_2O_3/Cu composites at ambient and at elevated temperatures were verified by internal oxidation using Cu_2O.The service life of composites electrode is 3～5 times higher than that of conventional Cu-Cr-Zr electrode based on installment experiment of spot-welding electrodes.Finally,the problems in preparation of Al_2O_3/Cu composites by internal oxidation were paid attention to.

关 键 词：内氧化 AL2O3/CU复合材料 AL2O3 

分 类 号：TB331[一般工业技术—材料科学与工程] TG291[金属学及工艺—铸造]