文献类型：期刊文献

英文题名：Fabrication and properties of novel low-melting glasses in the ternary system ZnO-Sb2O3-P2O5

作者：Zhang, Bing[1]; Chen, Qi[1,2]; Song, Li[2]; Li, Huiping[2]; Hou, Fengzhen[2]; Zhang, Jinchao[2]

机构：[1] Key Laboratory for Ultrafine Materials, Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China; [2] Department of Inorganic Materials, East China University of Science and Technology, Shanghai, 200237, China

年份：2008

卷号：354

期号：18

起止页码：1948

外文期刊名：Journal of Non-Crystalline Solids

收录：EI(收录号：20081211157359)

语种：英文

外文关键词：Differential thermal analysis - Glass transition - Infrared spectroscopy - Phosphates - Thermal expansion - X ray diffraction

摘要：Glasses in the ternary system ZnO-Sb2O3-P2O5 were investigated as potential alternatives to lead based glasses for low temperature applications. The glass-forming region of ZnO-Sb2O3-P2O5 system has been determined. Structure and properties of the glasses with the composition (60 - x)ZnO-xSb2O3-40P2O5 were characterized by infrared spectra (IR), differential thermal analysis (DTA) and X-ray diffraction (XRD). The results of IR indicated the role of Sb3+ as participant in glass network structure, which was supported by the monotonic and remarkable increase of density (ρ) and molar volume (VM) with increasing Sb2O3 content. Glass transition temperature (Tg) and thermal stability decreased, and coefficient of thermal expansion (α) increased with the substitution of Sb2O3 for ZnO in the range of 0-50 mol%. XRD pattern of the heat treated glass containing 30 mol% Sb2O3 indicated that the structure of antimony-phosphate becomes dominant. The improved water durability of these glasses is consistent with the replacement of easily hydrated phosphate chains by corrosion resistant P-O-Sb bonds. The glasses containing ≥30 mol% Sb2O3 possess lower Tg (<400 °C) and better water durability, which could be alternatives to lead based glasses for practical applications with further composition improvement. ? 2007 Elsevier B.V. All rights reserved.