Preparation of High-temperature Oxidation Resistant Coatings on Carbon/Carbon Composite Material Surface by Electrophoretic Deposition of MoSi_2 at Room Temperature AITranslate
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In order to improve the high temperature oxidation resistance of carbon/carbon composite material,the MoSi2 coating was prepared by electrophoretic deposition of MoSi2 powder with a particle size of about 13μm on the surface of carbon/carbon composite material cylinder with diameter of 30 mm and thickness of 5 mm in ethanol solution at room temperature,and then sintering in 800℃argon atmosphere.The optimal conditions for electrophoretic deposition are as follows：electrophoretic deposition voltage of 95 V,electrode gap of 2 cm and electrophoretic deposition time of 5 min.Under such conditions,the MoSi2 coating surface is flat and smooth with a weight of 65.3 mg,an average thickness of 46μm and an average binding strength of 23.9 MPa.The MoSi2 coating prepared under the optimal electrophoretic deposition conditions can reduce the static oxidation rate of carbon/carbon composite material in air at 1 500 ℃from 0.82%/min to 0.49%/min,and the weight loss rate of the sample decreases from 63%to 39% within 80 min.Applying a layer of Si-Al-O composite oxide ceramic coating on the surface of MoSi2 coating can further reduce the sample oxidation rate and weight loss rate to 0.15%/min and 11%,respectively.The dual coating is more effective than the addition of single coating in terms of reduction of substrate weight loss rate,so the dual coating may have some synergistic effects on inhibition of substrate oxidation.
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Chinese Library Classification Number:TF125.4[冶金工程—粉末冶金]
Citation Information:
In order to improve the high temperature oxidation resistance of carbon/carbon composite material,the MoSi2 coating was prepared by electrophoretic deposition of MoSi2 powder with a particle size of about 13μm on the surface of carbon/carbon composite material cylinder with diameter of 30 mm and thickness of 5 mm in ethanol solution at room temperature,and then sintering in 800℃argon atmosphere.The optimal conditions for electrophoretic deposition are as follows：electrophoretic deposition voltage of 95 V,electrode gap of 2 cm and electrophoretic deposition time of 5 min.Under such conditions,the MoSi2 coating surface is flat and smooth with a weight of 65.3 mg,an average thickness of 46μm and an average binding strength of 23.9 MPa.The MoSi2 coating prepared under the optimal electrophoretic deposition conditions can reduce the static oxidation rate of carbon/carbon composite material in air at 1 500 ℃from 0.82%/min to 0.49%/min,and the weight loss rate of the sample decreases from 63%to 39% within 80 min.Applying a layer of Si-Al-O composite oxide ceramic coating on the surface of MoSi2 coating can further reduce the sample oxidation rate and weight loss rate to 0.15%/min and 11%,respectively.The dual coating is more effective than the addition of single coating in terms of reduction of substrate weight loss rate,so the dual coating may have some synergistic effects on inhibition of substrate oxidation.
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| GB/T 7714-2015 | [1] YAN Shi-yu, CAO Ya-ping, ZHANG Zhi-tao, et al. Preparation of High-temperature Oxidation Resistant Coatings on Carbon/Carbon Composite Material Surface by Electrophoretic Deposition of MoSi_2 at Room Temperature[J]. Rare Metals and Cemented Carbides, 2018(1): 27-32. |
| MLA | [1] YAN Shi-yu, et al., "Preparation of High-temperature Oxidation Resistant Coatings on Carbon/Carbon Composite Material Surface by Electrophoretic Deposition of MoSi_2 at Room Temperature." Rare Metals and Cemented Carbides, no. 1, 2018, pp. 27-32. |
| APA | [1] YAN Shi-yu, CAO Ya-ping, ZHANG Zhi-tao, & SHEN Shao-bo. (2018). Preparation of High-temperature Oxidation Resistant Coatings on Carbon/Carbon Composite Material Surface by Electrophoretic Deposition of MoSi_2 at Room Temperature. Rare Metals and Cemented Carbides(1), 27-32. |
| IEEE | [1] YAN Shi-yu, CAO Ya-ping, ZHANG Zhi-tao, and SHEN Shao-bo, "Preparation of High-temperature Oxidation Resistant Coatings on Carbon/Carbon Composite Material Surface by Electrophoretic Deposition of MoSi_2 at Room Temperature," Rare Metals and Cemented Carbides, no. 1, pp. 27-32, 2018. keywords: {C/C composite material;high- temperature oxidation resistant coating;MoSi2 coating;electrophoretic deposition;hinding strength of coating} |