National Taiwan Ocean University Institutional Repository:Item 987654321/23508
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 26988/38789
造访人次 : 2358272      在线人数 : 39
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 进阶搜寻

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23508

题名: Air oxidation of a Zr58Cu22Al12Fe8 bulk metallic glass at 350–550 °C
作者: W. Kai;Y.R. Chen;T.H. Ho;H.H. Hsieh;D.C. Qiao;F. Jiang;G. Fan;P.K. Liaw
贡献者: NTOU:Institute of Materials Engineering
國立臺灣海洋大學:材料工程研究所
关键词: Bulk metallic glasses;Oxidation;X-ray diffraction;Thermal analysis;Microscopy
日期: 2009-08-26
上传时间: 2011-10-20T08:06:27Z
出版者: Journal of Alloys and Compounds
摘要: Abstract:The oxidation behavior of the Zr58Cu22Al12Fe8 bulk metallic glasses (ZC4-BMG) was studied over the temperature range of 350–550 °C in dry air. The oxidation kinetics of the ZC4-BMG generally follow a multi-stage parabolic-rate law, and the steady-state parabolic-rate constants (kp values) increased with increasing the temperature when it is below the glass transition temperature (Tg = 413.3 °C). Conversely, the kp values were nearly identical from 400 to 550 °C. The scales formed on ZC4-BMG were composed mostly of tetragonal-ZrO2 (t-ZrO2) and minor amounts of Al2O3 and monoclinic-ZrO2 (m-ZrO2). The amounts of both Al2O3 and m-ZrO2 increased with increasing the temperature. In addition, the amorphous substrate remained unchanged after the oxidation for 36 h at T ≤ 375 °C. However, it transformed into different crystalline phases at higher temperatures, which are strongly dependent on the temperature and duration of time.
關聯: 483(1-2), pp.519–525
URI: http://ntour.ntou.edu.tw/handle/987654321/23508
显示于类别:[材料工程研究所] 期刊論文

文件中的档案:

没有与此文件相关的档案.



在NTOUR中所有的数据项都受到原著作权保护.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈