文献类型：期刊文献

英文题名：Micro-crystallization of the infrared transmitting chalcogenide glass in GeSe₂-AS₂Se₃-PbSe system

作者：Wang, Hua[1];Zhang, Xianghua[1];Yang, Guang[1];Xu, Yinsheng[1];Ma, Hongli[2];Adam, J. L.[2];Gu, Zhen'an[1];Chen, Guorong[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]Univ Rennes 1, Lab Verres & Ceram, F-35042 Rennes, France

年份：2009

卷号：35

期号：1

起止页码：83

外文期刊名：CERAMICS INTERNATIONAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000261818300015)】；

基金：The present work is supported by the fund of National Natural Science Foundation of China (NSFC 60578042).

语种：英文

外文关键词：Glass ceramics; Micro-crystallization; Chalcogenide glass

摘要：Micro-crystallization of the chalcogenide glass 40GeSe(2)-50As(2)Se(3)-10PbSe has been studied in order to obtain infrared transmitting glass ceramics. Differential scanning calorimetry, IR transmission spectroscopy, X-ray diffraction, scanning electronic microscopy and thermal dilatancy have been used for characterizing the crystallization process. Performing thermal treatment on the glass sample at 250 degrees C (40 degrees C higher than T-g) for 10 h, we obtained a glass ceramic containing well-dispersed micro-crystals (<50 nm) and the obviously decreased thermal expansion coefficient. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.