【摘要】 通过液氮淬冷方法,成功地制备了一种Li₂S-SiS₂-LiBO₂体系硫氧化物玻璃。这种玻璃的热稳定性及抗潮性优于硫化物玻璃,而离子导电率高于氧化物玻璃。玻璃软化温度和电导激活能呈相似规律变化,即均随LiBO₂含量的增加而升高,并在LiBO₂含量为65mol%左右出现峰形平台,随后又逐渐降低。玻璃室温电导率为10^-5S/cm,激活能0.30—0.55ev。文中对玻璃网络结构与体系组成的关系及其对材料热学及电学性质的影响进行了讨论。更多还原

【Abstract】 By means of liquid nitrogen quenching method, oxysulfide glasses in Li₂S-SiS₂-LiBO₂ system were prepared. The glasses were analyzed by means of XRD, DTA, XPS, and electrical measurement. The oxysulfide glasses are more thermally stable and more anti-hygroscopic than the sulfide glasses, and are of higher Li+ conductivity than that of the oxide glasses. The glass transformation temperature and activation energy vary with composition in similar ways. That is, T_β and E_α increase with the increase of LiBO₂ content, and form a platform when LiBO₂ content is about 65 mol%, then decrease with the increase of LiBO₂ content. The conductivity of the glasses at room temperature is about 10^-5S/cm. The activation energy varies from 0.30 to 0.55 eV. The relationship between the glass network and composition and its effect on the thermal and electrical properties of the glasses were discussed.更多还原