Highly transparent sol-gel derived ureasilicate monoliths exhibiting long-term optical stability

被引：19

作者：

Boev, Victor I.

Soloviev, Alexei ^{[1
]}

Silva, Carlos J. R.

Gomes, Maria J. M.

Barber, David J.

机构：

[1] Univ Minho, Ctr Fis, P-4710057 Braga, Portugal

[2] Univ Minho, Ctr Quim, P-4710057 Braga, Portugal

[3] Brunel Univ, Wolfson Ctr Mat Proc, Uxbridge UB8 3PH, Middx, England

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2007年 / 41卷 / 03期

关键词：

ureasil; sol-gel; organic-inorganic hybrid; optical properties; mechanical properties;

D O I：

10.1007/s10971-006-9003-5

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Optically clear and elastic organic-inorganic hybrid materials were synthesized by hydrolysis and condensation of ureasilicate precursors. Ammonia or citric acid was used as a catalyst for hydrolysis and condensation reactions. The influence of the catalyst nature and the precursor content on the optical, mechanical and thermal properties of samples was investigated. It was shown that it is possible to significantly change the elastic properties of the ureasilicates keeping their good optical transparency in the visible range. The preparation conditions assuring long-term optical and mechanical stability of the samples were determined.

引用

页码：223 / 229

页数：7

共 35 条

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