溶胶凝胶工艺对R2O-B2O3-Al2O3-SiO2陶瓷结合剂的凝胶时间影响  

Effect of Sol-gel process on the Gelation Time of R2O-B2O3-Al2O3-SiO2 Vitrified Bond

作　　者：谢德龙 潘晓毅 刘小磐[2] 林峰 肖乐银 陈超 陈家荣 莫培程 XIE De-long;PAN Xiao-yi;LIU Xiao-pan;LIN Feng;XIAO Le-yin;CHEN Chao;CHEN Jia-rong;MO Pei-cheng(China Nonferrous Metal(Guilin) Geology and Mining Co,Ltd, Guangxi Key Laboratory of superhard material, National Engineering Research Center for Special Mineral Material, Guilin, Guangxi 541004, China;College of materials science and engineering, Hunan University,Changsha, Huanan 410082, China)

机构地区：[1]广西超硬材料重点实验室,国家特种矿物材料工程技术研究中心,中国有色桂林矿产地质研究院有限公司,广西桂林541004 [2]湖南大学材料科学与工程学院,长沙410082

出　　处：《超硬材料工程》2020年第2期12-15,共4页Superhard Material Engineering

基　　金：桂林科学研究与技术开发计划项目(项目编号:20180104-13);中色桂林矿地院开放基金项目(项目编号:KDY2018007)。

摘　　要：通过溶胶凝胶法制备R2O-B2O3-Al2O3-SiO2陶瓷结合剂,探讨加水量、pH值、温度三个因素对凝胶时间的影响。结果表明在加水量与正硅酸乙酯比例为70、溶胶体系pH值为4、温度为70℃时,所设计的结合剂体系凝胶时间约为32小时较为合理。With the process of preparing the R2O-B2O3-Al2O3-SiO2 vitrified bond by sol-gel method,the effects of three factors on the gelation time were discussed,including water content,pH value and temperature.The results showed that when the ratio of water and tetraethyl orthosilicate was set as 70,the pH value of sol system 4,and the temperature 70 degrees,the reasonable gelation time of the bond system was suggested to be 32 hours.

关 键 词：溶胶凝胶法 陶瓷结合剂 凝胶时间 超硬材料工具 

分 类 号：TQ164[化学工程—高温制品工业]