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Mechanically activated reactive synthesis of refractory molybdenum and tungsten silicides
School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou.
Institute of Powder Metallurgy, School of Materials Science and Engineering, University of Science and Technology, Beijing.ORCID iD: 0000-0003-4888-6237
School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou.
Institute of Powder Metallurgy, School of Materials Science and Engineering, University of Science and Technology, Beijing.
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2008 (Undetermined)In: International journal of refractory metals & hard materials, ISSN 0958-0611, E-ISSN 2213-3917, Vol. 26, no 3, p. 173-178Article in journal (Refereed) Published
Abstract [en]

In this study, processing of elemental powders mixtures was carried out by mechanical alloying (MA) and heat treatment in vacuum at 700–1000 °C for 1 h. The phase transformation of the powders was investigated by X-ray diffractometer (XRD). The results showed that mechanical alloying promoted the formation of a solid solution of elemental powders. The energy stored in the powders was increased as a result of exterior energy and the barrier energy of the formation of the compound could be exceeded easily. Intermetallics of MoSi2, WSi2, Mo5Si3, Mo3Si and SiC/MoSi2 composite powders were synthesized by mechanically activated reactive synthesis (MARS). The mechanically induced self-sustaining reaction was observed in MoSi2 and MoSi2 + 10 wt%SiC stoichiometry system. It has concluded that mechanically activated reactive synthesis is an effective method for the preparation of high melting-point refractory compounds.

Place, publisher, year, edition, pages
2008. Vol. 26, no 3, p. 173-178
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-15353DOI: 10.1016/j.ijrmhm.2007.05.008Local ID: eda01580-0d20-47c9-9478-76bb56ba61c2OAI: oai:DiVA.org:ltu-15353DiVA, id: diva2:988327
Note
Upprättat; 2008; 20150416 (farakh)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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