The effect of mechanical alloying on microstructure and mechanical properties of MoSi2 prepared by spark plasma sintering

Kermani, Milad; Razavi, Mansour; Rahimipour, Mohammad Reza; Zakeri, M.

doi:10.1016/j.jallcom.2014.01.041

Cited by 24 publications

(1 citation statement)

References 31 publications

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“…Hence, powder metallurgy processes are an attractive way to fabricate components of Mo silicide-based alloys. Previous studies have attempted to fabricate Mo silicide-based alloys [14,15] and Mo silicide powders [16] by mechanical alloying. However, powders fabricated by mechanical alloying suffer from low productivity and oxygen contamination, as well as an irregular morphology.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Spherical Mo5Si3 Powder by Inductively Coupled Thermal Plasma Treatment

Kang

Park

Choe

et al. 2018

Metals

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A method was developed to fabricate spherical Mo5Si3 powder by milling and spheroidizing using inductively coupled thermal plasma. A Mo5Si3 alloy ingot was fabricated by vacuum arc melting, after which it was easily pulverized into powder by milling due to its brittle nature. The milled powders had an irregular shape, but after being spheroidized by the thermal plasma treatment, they had a spherical shape. Sphericity was increased with increasing plasma power. After plasma treatment, the percentage of the Mo3Si phase had increased due to Si evaporation. The possibility of Si evaporation was thermodynamically analyzed based on the vapor pressure of Mo and Si in the Mo5Si3 liquid mixture. By this process, spherical Mo silicide powders with high purity could be fabricated successfully.

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Section: Introductionmentioning

confidence: 99%