sro-ai203-si02 系统微晶玻璃的晶化行为及性能 - 武汉理工大学学报.pdfVIP

第 29 卷第7 期 武汉理工大学学报 Vo1. 29 No.7 JOURNAL OF WUHAN UNlVERSITY OF TECHNOLæy Jul. 2007 2007 年7 月 系统微晶玻璃的晶化行为及性能 SrO-AI 0 -Si0 2 3 2 谢峡林，杜勇，何峰 430070) (武汉理工大学硅酸盐工程教育部重点实验室，武汉 摘 要: 通过改变玻璃成分，在不同的热处理制度下制备srO-Alz乌 SiÜz系统微晶玻璃，用 DTA、 XRD、 SEM 等手段对 该系统微晶玻璃材料的析品过程进行了研究。在此基础上，讨论了晶化行为对微品玻璃的热学及力学性能的影响O 结 采表明:材料的热学性能及力学性能与玻璃成分及热处理制度密切相关。可以找到某一确定组分的基础玻璃，经过较低 的核化温度与较高晶化温度热处理后，能够得到力学性能优良、热学性能较好的微晶玻璃材料。 关键词 srO-Alzo -SiÜz系统微晶玻璃; 热学性能; 力学性能 3 中图分类号 TQ 171.73 文献标志码 A 文章编号:1671-4431(2007)07-0006-04 Crystallization and Properties of SrO-Ali03-Si02 Glass-ceramics XIE }un-lin ,DU Yong , HE Feng (Key Laboratory of Silicate Materials Scienc巳 and Engineering of Ministry of Educatio口， Wuhan University of Technology , Wuhan 430070 , China) Abstract: SrO-Alz乌-SiÜz (SAS)system glass-cerami臼， were fabricated by changing basic glass compositions and undergo- ing different heat-treatment systems and inv巳stigated for their crysta1lization behaviors by using DTA , XRD and SEM. on th臼E bases , effects of crystallization b巳haviors on therma1 and mechanica1 properties were ana1yz时， and r巳sults show巳d that the ther ma1 and mechanical properties of this kind material had a closed relation with glass com阳sitions and heat-treatment systems. 1t was feasible to fabricate SAS system glass-ceramic materials with excellent mechanica1 and thermal properties by using a certain basic glass and being heat treated under lower nucleation temper