ZrC-Zr2Si Coating on Carbon Fiber Reinforced Silicon Carbide Matrix Composites Prepared by Pack Cementation Method

Yang Xiang; Song Wang; Zhao Hui Chen

doi:10.4028/www.scientific.net/MSF.675-677.1225

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HomeMaterials Science ForumMaterials Science Forum Vols. 675-677ZrC-Zr2Si Coating on Carbon Fiber Reinforced...

ZrC-Zr₂Si Coating on Carbon Fiber Reinforced Silicon Carbide Matrix Composites Prepared by Pack Cementation Method

Abstract:

ZrC-Zr2Si coating was prepared on carbon fiber reinforced silicon carbide matrix composites (C/SiC) by pack cementation method to prevent these composites from oxidation. SEM, EDS and XRD were applied to analyze the surface and cross-section morphologies, element distribution and phase composition of the coating, respectively. The results show that the coating made by the technique exhibits excellent oxidation resistance. The optimizing infiltration composition and process was: 60wt.%Zr-Si, 30wt.%PCS-DVB, 10wt.%Al2O3, holding 8 hours at 1400°C in Ar protecting atmosphere, ZrC-Zr2Si coating is obtained, homogeneous and density. The weight loss percentage of the coated C/SiC is only 1.52％after oxidation in air at 1500°Cfor 30min.

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Materials Science Forum (Volumes 675-677)

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1225-1228

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https://doi.org/10.4028/www.scientific.net/MSF.675-677.1225

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February 2011

Authors:

Yang Xiang, Song Wang, Zhao Hui Chen

Keywords:

C/SiC Composite, Oxidation, Pack Cementation Method, ZrC-Zr₂Si Coating

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