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Synthesis of Mo–Si–B in situ composites by mechanical alloying

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Title: Synthesis of Mo–Si–B in situ composites by mechanical alloying
Authors: Yamauchi, Akira Browse this author
Yoshimi, Kyosuke Browse this author
Kurokawa, Kazuya Browse this author →KAKEN DB
Hanada, Shuji Browse this author
Keywords: molybdenum silicides
mechanical alloying
spark plasma sintering
X-ray diffraction
Issue Date: 31-May-2007
Publisher: Elsevier
Journal Title: Journal of Alloys and Compounds
Volume: 434-435
Start Page: 420
End Page: 423
Publisher DOI: 10.1016/j.jallcom.2006.08.218
Abstract: In this study, the synthesis of Mo-Si-B multi-phase alloys, so-called in-situ composites, was attempted with the combination of mechanical alloying (MA) and spark plasma sintering (SPS) processes. MA was conducted with mixed powders of Mo, Si and B using a planetary ball mill under various milling conditions. MAed powders were characterized by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The results obtained by XRD indicated that Mo-Si-B alloyed powders were successfully produced when elemental powders were milled at a higher milling energy. Vacuum heat treatments after the MA process promoted the formation of Mo-Si-B intermetallic phase in MAed powders. On the other hand, the MAed powders were successfully consolidated by a SPS technique, and as a result, sound compacts of Mo5SiB2-based composites were synthesized.
Type: article (author version)
Appears in Collections:エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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