LiF和CaF_2助熔效果的研究  

Research on the Fluxed Effect of LiF and B2O3

作　　者：李玉萍[1] 徐晓伟[1] 张永杰[1] 王碧燕[2] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]北京科技大学应用科学学院,北京100083

出　　处：《北京科技大学学报》2002年第4期429-431,共3页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.59972003)

摘　　要：通过抗弯强度测试研究了LiF和CaF2对陶瓷结合剂性能的影响.结果表明在Al-Si-O系陶瓷结合剂中,CaF2的析晶现象明显大于LiF.以LiF为助溶剂的陶瓷结合剂比用CaF2为助溶剂的陶瓷结合剂熔点低、粘接强度大.当以LiF为助熔剂时,可以用摩尔数比值（Al2O3+B2O3）/（R2O+RO+0.5LiF）判断陶瓷结合剂自身的强度.The effects of LiF and CaF2 in the vitreous bond have been studied by the measurement of bonding strength. The results show that, the trend of CaF2 crystallization from Al-Si-O system vitreous bond is more obvious than that of LiF. The melting-point of the bonds is lower and the bonding force is stronger when using LiF than CaF2 as flux. The mole ratio (Al2O3+B2O3)/(R2O+RO+0.5LiF)can be used as a criterion to confirm the self-strength of the vitreous bonds.

关 键 词：LIF CAF2 助熔效果 助熔剂 陶瓷结合剂 氟化物 氟化锂 氟化钙 抗弯强度测试 熔点 粘接强度 

分 类 号：TQ174.47[化学工程—陶瓷工业]