Deposition of a B-modified silicide coating for Nb-Si based alloy oxidation protection
Deposition of a B-modified silicide coating for Nb-Si based alloy oxidation protection
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用于铌硅基合金氧化防护的 B 改性硅化物涂层沉积
DOI：
10.1016/j.corsci.2016.06.020
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发表时间：
2016-10
影响因子：
8.3
通讯作者：
Zhou Chungen
中科院分区：
文献类型：
--
作者：
Shao Wei;Wang Wan;Zhou Chungen
A B-modified silicide coating was prepared on the Nb-Si based alloy by Si-TiB2co-deposition at 1300 °C for 10 h. The results show that the two-layer coating is composed of a (Nb, X)Si2(X represents Al, Cr, Ti and Hf) + NbTiB4outer layer and a (Nb, X)Si2+ Cr2Nb inner layer. Static oxidation tests indicate that the mass gain of B-modified silicide coating was 2.39 mg/cm2after oxidation at 1250 °C for 100 h. The good oxidation resistance is attributed to the formation of a continuous and dense scale mainly consisting of glassy borosilicate.
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