La^(3+)掺杂无碱铝硼硅酸盐玻璃性能的研究  

Study on Properties of Non-alkali Aluminoborosilicate Glasses Doped with La^(3+)

作　　者：贾絮[1] 岳云龙[1] 王馨[1] 杜钊[1] 王雯雯[1] 

机构地区：[1]济南大学材料科学与工程学院,济南250022

出　　处：《玻璃纤维》2012年第3期21-23,共3页Fiber Glass

基　　金：国家自然科学基金(51042009);山东省优秀中青年科学家奖励基金(BS2009CL057)

摘　　要：以La2O3-Al2O3-B2O3-SiO2玻璃系统为基础玻璃,用SiO2替代B2O3,通过DTA、IR等测试手段来研究其介电性能、热稳定性、化学稳定性及结构的变化。玻璃红外光谱分析表明,该系统玻璃结构与未掺La2O3玻璃的结构相同;玻璃的DTA曲线表明,随着SiO2替代B2O3含量的增加,玻璃的软化点增高,析晶温度升高,玻璃的热稳定性得到增强;同时随着替代量的增加,玻璃的耐酸耐碱性也得到提高;介电常数及介电损耗在SiO2/B2O3=2.7时出现极小值。Based on La2O3 -Al2O3 -B2O3 -SiO2 glass system, glasses with B2O3 replaced by SiO2 were prepared, and their struc- ture, dielectric properties, thermal and chemical behaviors were investigated by using DTA and IR. The IR spectrometry showed that the glass structure of doped glasses was similar to non-doped glass. The DTA results showed that with the increase of B2O3 replacement by SiO2 , the thermal stability as well as the acid and alkali resistance of the glasses were improved, while the dielectric constant and dielectric loss revealed minimal values at SiO2/B2O3 = 2.7.

关 键 词：La3+ Al2O3-B2O3-SiO2玻璃 性能研究 LA2O3 

分 类 号：TQ171.774[化学工程—玻璃工业]