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Processing of fused silicide coatings for carbon-based materials

机译:碳基材料熔融硅化物涂层的加工

摘要

The processing and oxidation resistance of fused Al-Si and Ni-Si slurry coatings on ATJ graphite was studied. Ni-Si coatings in the 70 to 90 percent Si range were successfully processed to melt, wet, and bond to the graphite. The molten coatings also infiltrated the porosity in graphite and reacted with it to form SiC in the coating. Cyclic oxidation at 1200 C showed that these coatings were not totally protective because of local attack of the substrate, due to the extreme thinness of the coatings in combination with coating cracks.
机译:研究了ATJ石墨上熔凝的Al-Si和Ni-Si浆料涂层的加工性能和抗氧化性能。 Si含量在70%到90%之间的Ni-Si涂层已成功加工以熔融,润湿并结合到石墨上。熔融涂层还渗透了石墨中的孔隙,并与之反应形成涂层中的SiC。 1200℃下的循环氧化表明,由于涂层的极薄性以及涂层的开裂,由于基体的局部腐蚀,这些涂层不能完全起到保护作用。

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    Smialek J. L.;

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  • 年度 1982
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