Electrical properties and microstructure of glassy-crystalline Ag+-ion conducting composites synthesized by a high-pressure method
Rigid, mechanically reinforced, composite Ag+-ion conductors based on xAgI·(100-x) (0.67Ag2O·0.33B2O3), 40≤x≤60, glasses and hard insulating powders of α-Al2O3 (2 μm) or ZrO2 (1 μm) were prepared by a high-pressure method. Microstructure of the composites, depended on the content of AgI in the glasses and the temperature of the high-pressure stage of the synthesis. In all cases, however, it consisted of the evenly distributed phases (conductive and insulating), which did not interpenetrate at a nanometer length scale. It was found that the high electrical conductivity of the composites, though somewhat lower than that of the glasses, generally followed the temperature-and composition dependencies of the latter. An important advantage of the composites over the corresponding glasses was their higher microhardness and non-brittleness, which, contrary to the glasses, enabled their post-synthesis machining, cutting or polishing.
High-pressure synthesis Solid electrolytes Silver borate glasses Composite electrolytes Ionic conduction Microhardness
M.Wasiucionek M.Foltyn J.E.Garbarczyk J.L.Nowinski S.Gierlotka B.Palosz
Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Pol
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1278-1281
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）