Influence of heat treatment on the transparency of silicate thin films in the near-IR range

被引：0
|
作者：
Shardakov, N. T. [1 ]
Byzov, I. V. [1 ]
Pankratov, A. A. [2 ]
Kochedykov, V. A. [2 ]
机构：
[1] Russian State Vocat Pedag Univ, Ekaterinburg 620012, Russia
[2] Russian Acad Sci, Ural Div, Inst High Temp Electrochem, Ekaterinburg 620219, Russia
来源：
GLASS PHYSICS AND CHEMISTRY | 2008年 / 34卷 / 03期
关键词：
D O I：
10.1134/S1087659608030103
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：
The influence of heat treatment on the transmission of silicate thin films prepared by gelation from aqueous solutions of sodium silicate (water glass) is investigated. It is demonstrated that the initial films are characterized by a strong absorption in the IR range due to the presence of hydroxyl groups. The heat treatment of the films at temperatures in the range 150-250 degrees C leads to the step-by-step removal of water from the films and, as a consequence, to an almost complete transmission in the high-frequency IR spectral range. An increase in the heat treatment temperature to 580 degrees C is accompanied by the loss of transparency, most likely, as a result of the pore formation in the film.
引用
收藏
页码：300 / 304
页数：5
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