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作 者:彭琳[1] 赵高凌[1] 刘史敏[1] 应浩[1] 汪建勋[1] 韩高荣[1]
机构地区:[1]浙江大学材料科学与工程系硅材料国家重点实验室,杭州310027
出 处:《武汉理工大学学报》2007年第E01期154-156,共3页Journal of Wuhan University of Technology
基 金:国家自然科学基金(50672086)和高等学校科技创新工程重大项目培育资金项目(705026)
摘 要:采用熔融退火方法制备SiO2-B2O3-Al2O3-RO(MgO,CaO,SrO,BaO)系玻璃。玻璃的成分范围如下:SiO2(66mol%),B203(6.38—12.94mol%),Al2O3(9.06—15.62mol%),∑RO(12mol%)。研究了Al2O3/B2O3比例变化对玻璃化学稳定性能的影响。结果表明:在研究的成分范围内,随着n(Al2O3/B2O3)的增加,对耐水、耐酸性都出现了转折点,样品中G2(n(Al2O3/B2O3)=1.20)成分的耐水、酸性最好;耐碱性能先减弱后增强,样品中G3(n(Al2O3/B2O3)=1.70)成分的耐碱性最好。SiO3-B2O3-Al2O3-RO (MgO, CaO, SrO, BaO) glasses were made by melt-annealing method. The range of glasses components were as following: SiO3(66 mol %), B203(6.38--12.94 mol % ), Al2O3(9.06-15.62 mol %),∑RO (12 mol % ). The effect of the amount of Al2O3, B2O3 on chemical durability in alkali-free aluminoborosilicate glass was studled. The results revealed that when ratios of Al2O3/B2O3 increased, the water, acid resistance of samples appeared a turning point, and the sample G2 (n (Al2O3/B2O3 = 1.20) performed best; Base resistance decreased at first and then increased, and the sample G3( n (Al2O3/ B2O3 = 1.70) performed best.
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