Microstructure, phase composition and oxidation behavior of porous Ti-Si-Mo intermetallic compounds fabricated by reactive synthesis
Source abstract
Abstract
Abstract Porous Ti-Si-Mo intermetallic compounds were fabricated by reactive synthesis using C 7 H 10 N 2 O 2 S as a foaming agent. The effects of Mo content on the microstructure, phase composition and oxidation behavior were investigated. The results show that the porosity and the fractal dimension decreases and then increases as the Mo content increases. It is found that the pore size is mainly distributed in less than 1μm. The phase compositions mainly consist of TiSi, Ti 5 Si 4 , Mo 5 Si 3 and TiO, and the Ti 5 Si 3 phase is detected at Mo content of 16 wt.% in particular. In addition, the mass gain of the oxidized samples gradually decreases as the Mo content increases. It is concluded that the oxidation resistance at high-temperature generally decreases as the fractal dimension increases. It is suggested that porous Ti-Si-Mo intermetallic compounds have potential applications in sound absorption and heat dissipation at high-temperature.
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Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · MXene and MAX Phase Materials · Advanced materials and composites
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Affiliations
Institute of Advanced Manufacturing and Modern Equipment Technology , Jiangsu University , Zhenjiang , 212013, China
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