金刚石与磨料磨具工程2018，Vol.38Issue(2)：26-31,36,7.DOI:10.13394/j.cnki.jgszz.2018.2.0006
ZnO-Al2O3-B2O3-SiO2系微晶玻璃结晶行为及对金刚石磨料的润湿性
Crystallization of ZABS glass and its wettability on diamond abrasive
摘要
Abstract
To modify glass-ceramic bond,ZnO-Al2O3-B2O3-SiO2(ZABS)glass was prepared by conventional melting method.The influence of boron-silicon ratio and sintering process on its thermal and mechanical properties,as well as crystallizing behavior was discussed.The microstructure of the glass and its wettability on diamond abrasive were studied.Results show that with increased boron content,the thermal expansion coefficient of glass increases and its thermal resistance decreases,while bending strength first increases and then decreases.Too much boron will make the bond cover the grain entirely,which is bad for grinding.It is also found that with increased silicon content,the viscosity of glass increases,thus leading to poor wettability to grains.Too much silicon leads to poor bending strength.In conclusion,the best boron-silicon ratio of ZABS glass is 1:1 in weight,and the optimized heat treatment is 710 ℃ for 2 h.The glass would have a thermal expansion coefficient of 5.132 7× 10-6℃-1and a bending strength of 78 MPa,as well as good wettability to grains.关键词
ZnO-Al2O3-B2O3-SiO2微晶玻璃/析晶过程/显微结构/热膨胀系数/抗弯强度/润湿性Key words
ZnO-Al2O3-B2O3-SiO2 glass-ceramics/crystallization/microstructure/thermal expansion coefficient/bending strength/wettability分类
矿业与冶金引用本文复制引用
栾时勋,傅仁利,朱海洋,刘启龙,李玉军..ZnO-Al2O3-B2O3-SiO2系微晶玻璃结晶行为及对金刚石磨料的润湿性[J].金刚石与磨料磨具工程,2018,38(2):26-31,36,7.基金项目
江苏省重点研发计划资助项目(BE2016050) （BE2016050）
江苏高校优势学科建设工程资助项目. （）
