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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23609

Title: Preparation of Mg-Y-Cu Bulk Metallic Glass by High Energy Ball Milling
Authors: Pee Yew Lee;M.C. Kao;Chung Kwei Lin
Contributors: NTOU:Institute of Materials Engineering
Keywords: Bulk Metallic Glass;Mechanical Alloying (MA);Supercooled Liquid Region;Vacuum Hot Pressing
Date: 2005
Issue Date: 2011-10-20T08:06:45Z
Publisher: Journal of Metastable and Nanocrystalline Materials
Abstract: Mg45Y15Cu40 (numbers indicate at.%) metallic glass powders were prepared by the mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg45Y15Cu40 amorphous powders was investigated using the differential scanning calorimeter (DSC). Tg, Tx, and Tx are 456, 491, and 35 K, respectively. The as-milled Mg45Y15Cu40 powders were then consolidated by vacuum hot pressing into disk compacts with a diameter and thickness of 10 and 1 mm, respectively. This yielded bulk Mg45Y15Cu40 metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix. The pressure applied during consolidation can enhance thermal stability and prolong the existence of amorphous phase within Mg45Y15Cu40 powders.
Relation: 24-25, pp.97-100
URI: http://ntour.ntou.edu.tw/handle/987654321/23609
Appears in Collections:[材料工程研究所] 期刊論文

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