摘要
用内氧化法制备Al2O3/Cu粉,将Al2O3/Cu粉进行真空热压烧结,得到Al2O3/Cu板,然后采用爆炸焊法制备了Al2O3/Cu-QCr0.5复合板,并对复合板界面性能进行了研究。研究结果表明:在1 000℃,压力为4MPa的条件下,经3 h真空热压烧结制备Al2O3质量分数分别为1.0%和0.5%的Al2O3/Cu板,采用爆炸焊方法能够与QCr0.5结合制备出质量良好的Al2O3/Cu-QCr0.5复合板,且Al2O3质量分数为1.0%的Al2O3/CuQCr0.5复合板结合质量较好;结合界面硬度介于Al2O3/Cu基体和QCr0.5基体之间;爆炸参数不同会引起漩涡、周边打伤、打裂等问题;受爆炸冲击作用,在结合面处晶粒变形最大,较远位置处变形微小。
Al2O3 / Cu powder was made by internal oxidation,then Al2O3 / Cu plate was prepared by means of vacuum hot-pressing sintering. Interfacial properties of Al2O3 / Cu-QCr0. 5 composite plate fabricated by explosion welding method were investigated. The results show that the well-bonded Al2O3 / Cu-QCr0. 5 composite plate with 1. 0% and 0. 5% Al2O3 can be obtained at 1 000 ℃ and 4 MPa by means of 3 h vacuum hot-pressing sintering. The combination of Al2O3 / Cu-QCr0. 5 composite with 1. 0% Al2O3 is better. The hardness of bonding interface is between Al2O3 / Cu and QCr0. 5 matrix's. Eddies,peripheral wound and crack are caused by different explosion parameters in the experiment. By the explosion impact,grain deformation is the largest in seam,and deformation is small in distant place.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2013年第6期9-12,18,共5页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(51075122)
河南省杰出人才基金项目(134200510011)
