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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23543

Title: Formation of Ni57Zr20Ti22Pb1 Amorphous Powders by Mechanical Alloying
Authors: Pee Yew Lee;S.S. Hung;Jason S.C. Jang;Giin Shan Chen
Contributors: NTOU:Institute of Materials Engineering
Keywords: Amorphous Phase;Glass Transition;Mechanical Alloying (MA);Nickel-Based Alloy;Supercooled Liquid Region
Date: 2007-03
Issue Date: 2011-10-20T08:06:34Z
Publisher: Materials Science Forum
Abstract: Abstract:In the current study, the amorphization behavior of mechanically alloyed Ni57Zr20Ti22Pb1 powder was examined in details. The conventional X-ray diffraction results confirm that the fully amorphous powders formed after 5 hours of milling. The thermal stability of the Ni57Zr20Ti22Pb1 amorphous powders was investigated by differential scanning calorimeter (DSC). As the results demonstrated, the glass transition temperature (Tg) and the crystallization temperature (Tx) are 760 K and 850 K, respectively. The supercooled liquid region  is 90 K. The appearance of wide supercooled liquid region may be mainly due to the Pb additions which cause the increasing differences in atomic size of mechanically alloyed Ni57Zr20Ti22Pb1 powders.
Relation: 539-543, pp.2767-2772
URI: http://ntour.ntou.edu.tw/handle/987654321/23543
Appears in Collections:[材料工程研究所] 期刊論文

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