溶胶凝胶法制备Al_2O_3-SiO_2包覆金刚石的性能研究  

The properties of diamond coated by Al_2O_3-SiO_2 film using sol-gel method

作　　者：刘嘉霖[1] 张旺玺[1] 梁宝岩[1] 韩警贤[1] 

机构地区：[1]中原工学院材料与化工学院,河南郑州451191

出　　处：《超硬材料工程》2013年第4期6-9,共4页Superhard Material Engineering

基　　金：河南省基础与前沿技术研究计划(102300410204);河南省教育厅自然科学研究计划(12A430024);郑州市科技领军人才项目资助

摘　　要：利用溶胶-凝胶法制备了Al2O3-SiO2溶胶,并将溶胶包覆金刚石,利用扫描电镜、热分析、红外光谱、冲击韧性测试等手段对包覆Al2O3-SiO2溶胶的金刚石性能进行表征。结果表明:金刚石表面包覆了一层致密的Al2O3-SiO2涂层及溶胶后,抗氧化性能、热性能以及机械性能均有明显提高。The diamond was coated by Al203-SiO2 film using glass sol-gel method, the properties of diamond was characterized by SEM, DSC-TG, FTIR and impact resistance testing. It was indicated that the thermal properties and oxidation resistance property of the diamonds coated by the Al2O3-SiO2 film were improved 100℃, and the mechanical property of that diamonds were enhanced compared with the diamonds without Al2O3- SiO2 film.

关 键 词：溶胶—凝胶法 金刚石 包覆 磨料磨具 

分 类 号：TQ164[化学工程—高温制品工业]