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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23476

Title: Consolidation of mechanically alloyed Mg49Y15Cu36 powders by vacuum hot pressing
Authors: P.Y. Lee;C. Lo;J.S.C. Jang
Contributors: NTOU:Institute of Materials Engineering
Keywords: Mechanical alloying;Metallic glass;High-pressure;Thermal analysis
Date: 2007-05-31
Issue Date: 2011-10-20T08:06:21Z
Publisher: Journal of Alloys and Compounds
Abstract: Abstract:The preparation of Mg49Y15Cu36 metallic glass powders was accomplished by mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg49Y15Cu36 amorphous powders was investigated by differential scanning calorimeter (DSC). The Tg, Tx and ΔTx are 450, 492, and 42 K, respectively. The as-milled Mg49Y15Cu36powders were then consolidated by vacuumhotpressing into disc compacts with a diameter and thickness of 10 and 1 mm, respectively. After vacuumhotpressing, bulk Mg49Y15Cu36 metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix was obtained. The applied pressure during consolidation can enhance the thermal stability and prolong the existence of amorphous phase inside Mg49Y15Cu36powders.
Relation: 434–435, pp.354-357
URI: http://ntour.ntou.edu.tw/handle/987654321/23476
Appears in Collections:[材料工程研究所] 期刊論文

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