OXIDATION PROTECTION FOR 3D CARBON-CARBON COMPOSITES

作     者：HSU, SE WU, HD WU, TM CHOU, ST WANG, KL CHEN, CI 

作者机构：Materials R&D Center Chung Shan Institute of Science and Technology Lung-Tan Taiwan 32526 Republic of China 

出 版 物：《ACTA ASTRONAUTICA》 (Acta Astronaut)

年 卷 期：1995年第35卷第1期

页      面：35-41页

核心收录：

学科分类：08[工学] 0825[工学-航空宇航科学与技术] 

摘      要：The main objective of this study is to produce an effective protection coating for 3D carbon/carbon composites (C/C) to prevent oxygen attacks at elevated temperatures. Silicon and zirconium base alloys were used to stack a multilayer coating in an array of elemental gradients. The oxidation rate was detected by an in situ measurement at various temperatures as well as by long-term isothermal oxidation at elevated temperatures up to 1650-degrees-C. A maximum oxidation rate was found at a medial temperature of around 800-degrees-C. The rate converged to zero at 1150-degrees-C and weight gain occurred at higher temperatures. The multilayer coating proved useful in encountering the severe oxidation circumstances for hundreds of hours without deterioration of the C/C substrate.