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无开裂K₂O—PbO—B₂O₃—SiO₂系统凝胶的研究

Study on K₂O-PbO- B₂O₃-SiO₂ System Gel without Cracking

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【Author】 Lu Wensheng Zhou Shigui ( East China University of Science and Technology)Shen Dingkun Du Xinmin Cheng Youxin ( Shanghai Institute of Ceramies, Chinese Academy of Science)

【机构】华东理工大学无机材料系；中国科学院上海硅酸盐研究所；中国科学院上海硅酸盐研究所 200237； 200237； 200050； 200050；

【摘要】本文以二甲亚砜取代乙醇,并将凝胶进行热陈化处理,制得了无裂纹的K₂O-PbO-B₂O₃-SiO₂系统玻璃。其中,凝胶经热陈化处理平均孔径由36.5A提高到108.2A;以二甲亚砜取代乙醇,促进凝胶有机基因的分解,有利于凝胶向玻璃转变。更多还原

【Abstract】 A K2O-Pbo-B2O3-SiO2 system glass rod without cracks was obtained by substitu-ting dimethylsalfoxide for ethanol and by thermal aging. Through thermal aging, theaverage pore radius of gel is increased from 36.5A to 108.2A; replacement ethanol with dimethylsulfoxide which promotes the deposition of organic groups of gel network is helpful for gel to turn into glass. Thus the cracking of gel during heat treatment is restrained effeotively.更多还原