Excess aluminium effect on the composition and microstructure of Mo–Al alloys from aluminothermic reduction of MoO3

作者: H. R. Z. Sandim , A. S. Ramos , P. A. Suzuki , L. B. Alkmin , N. Chaia

DOI: 10.1080/00084433.2017.1299907

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摘要: ABSTRACTThe effect of aluminium excess on the composition and microstructure Mo–Al alloys from aluminothermic reduction metallurgical-grade MoO3 was investigated. Aluminium ranged 0 to 30% (in wt-%) with respect stoichiometric amount. The results showed that molybdenum yield increases for higher aluminium. were investigated using scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), X-ray diffraction (XRD). following phases observed in microstructures: Moss, Mo3Al, Mo3Al8, besides particles Al2O3. also leads a product containing significant amounts silicon.

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