文献类型：期刊文献

中文题名：Ga_2S_3-GeS_2-KCl系统玻璃的研究

英文题名：The Formation and Properties of Chalcohalide Glassesin the Ga2S3GeS2KCl System

作者：陈玮[1];王德强[1];程继健[1];蒋幼梅[1];梁振华[1]

机构：[1]华东理工大学无机材料研究所

年份：1998

卷号：24

期号：4

起止页码：467

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：上海市应用材料发展基金

语种：中文

中文关键词：硫卤玻璃;玻璃形成;玻璃性质;红外材料

外文关键词：chalcohalide glass; glassforming; glass properties; infrared materials

摘要：系统研究了含有一价碱金属卤化物的Ｇａ２Ｓ３－ＧｅＳ２－ＫＣｌ系统玻璃的制备与形成区，某些典型玻璃的光学和物理化学性质。结果表明：玻璃的透过范围为０．４２～１１．５μｍ，转变温度可达２６０～３００℃，玻璃的密度为２．６５０～２．８７０ｇ／ｃｍ３，膨胀系数为１００×１０－７～１８０×１０－７°Ｃ－１，显微硬度为１６００～１９００Ｎ／ｍｍ２，玻璃具有较好的耐水性。玻璃的电导率在２３℃时为１０－１０～１０－１１Ｓ／ｃｍ；２７０℃时为１０－５～１０－８Ｓ／ｃｍ。还从结构上讨论了性质变化的规律。
Besides the application for optical materials transmitting in midfarinfrared region, chalcohalide glasses have recently received more and more attention in their uses as nonlinear photonic materials because they share high thirdorder nonlinear polarizability. For this purpose, glass forming region of new Ga2S3GeS2KCl system was studied and a series of this ternary system glasses was obtained. Binary system glasses may be formed by combining GeS2 with Ga2S3, the Ga2S3 content is 0.10. Binary GeS2KCl system do not form vitreous state. The contents in Ga2S3 and KCl for ternary system glasses exceed 0.30 respectively. Some typical glasses were selected to study their optical, electronic, physical and chemical properties. The shortwave absorption edge was found to shift from 480 nm to wards the shorter wavelength (410 nm) by KCl doping while the multiphonon absorption of glasses is about 11.5 μm. About 60%～80% transmittance of glasses (thinckness: 4 mm) was observed within 0.5～10 μm. The conductivity of glasses is 10-10～10-11 S/cm at 23℃ or 10-5～10-8 S/cm at 270℃. The transition temperature of the glasses range from 260 to 300℃. The density and microhardness of the glasses are 2.659～2.870 g/cm3 and 1 600～1 900 N/mm2 respectively. The chemical stability of glasses in distilled water were demonstrated satisfied.