Low temperature oxidation of Cr-alloyed MoSi_2

查看全文 作　　者：E. [1]Strom;Y. [2]Cao;Y. M. [2]Yao

机构地区：[1]Kanthal AB, Box 502, SE-734 27 Hallstahammar, Sweden;[2]Department of Materials and Manufacturing Technology, Chalmers University Technology, SE-412 96 Gothenburg, Sweden

出　　处：《中国有色金属学会会刊:英文版》索引2007年第17卷第6期,共5页

基　　金：Project supported by the Swedish Consortium for Materials Use in Energy Applications 摘　　要：Cr-alloyed MoSi2 was compared with monolithic MoSi2 with respect to oxidation at 450 ℃ for 456 h. Phases formed on Cr-alloyed MoSi2 after exposure are Cr2(MoO4)3, MoO3, and cristobalite (SiO2) according to X-ray diffraction results. Monolithic MoSi2 forms MoO3 and mainly amorphous SiO2. X-ray photoelectron spectroscopy indicates that the main oxidation product on the outermost surface is SiO2 for all studied samples. The samples form a relatively loose oxide but the oxide adherence improves with increasing Cr content. It is indicated that Cr addition can benefit pesting control in MoSi2. 关键词：钼硅化合物合金有害物氧化作用

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Low temperature oxidation of Cr-alloyed MoSi_2

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