Multilayer coating with self-sealing properties for carbon-carbon composites

被引：137

作者：

Smeacetto, F ^{[1
]}

Ferraris, M ^{[1
]}

Salvo, M ^{[1
]}

机构：

[1] Politecn Torino, Mat Sci & Chem Engn Dept, I-10129 Turin, Italy

来源：

CARBON | 2003年 / 41卷 / 11期

关键词：

carbon/carbon composites; coating; oxidation; X-ray diffraction; thermal analysis;

D O I：

10.1016/S0008-6223(03)00228-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This work proposes a simple and low cost method to deposit an effective multilayer protective coating on carbon-carbon composites (C/C). The first layer is made of molybdenum disilicide particles in a barium boron alummosilicate glass (SABB); the second (external) layer is made of yttrium oxide modified SABB. A study of the reactions between the yttriurn oxide and the SABB glass is presented. The coated C/C were submitted to thermal cycling or thermal aging tests up to 1300 degreesC in air. Weight losses were less than 0.5% in 50 h of thermal cycling and less then 1% in 150 h of thermal aging. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：2105 / 2111

页数：7

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