| Summary: | 碩士 === 義守大學 === 材料科學與工程學系碩士班 === 94 === The study is to investigate the effects of the products produced which the carbon fiber cloths via the different catalyst Sol-Gel methods and the CVD/sintering method to form the anti-oxidation carbon nanotube (CNT)/carbon fiber cloth composites.
The result shows that the TEOS/Boehmite samples exhibit the superior anti-oxidation during oxidation tests. In addition, the anti-oxidation and thermal shock for the Mullite products all show the better effect more than the other products such as α-Al2O3, SiO2, and so on.
As a result of hardness tests, Fe(NO3)3/TEOS/Boehmite specimen reveal the superior effect because these products obtained through CVD/sintering, including Mullite and α-Al2O3, exhibit the excellent mechanical properties. Also, the composites reinforced by CNT results in the case of the higher hardness. As for the wear tests, it is found that the friction coefficients for samples with the various catalysts are generally higher than those for the pure carbon fiber cloths. In addition, the higher and steadier friction coefficient and the lower weight loss for the TEOS/Boehmite samples are obtained, indicating that the Mullite and α-Al2O3 products are beneficial to improve and steady the friction coefficient under wear process.
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