National Taiwan Ocean University Institutional Repository:Item 987654321/23589
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题名: Oxidation behavior of the (Cu78Y22)98Al2 bulk metallic glass containing Cu5Y-particle composite at 400–600°C
作者: W. Kai;T.H. Ho;I.F. Jen;P.Y. Lee;Y.M. Yang;T.S. Chin
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: A. Composites;B. Oxidation
日期: 2008-05
上传时间: 2011-10-20T08:06:42Z
出版者: Intermetallics
摘要: Abstract:The oxidation behavior of the (Cu78Y22)98Al2 bulk metallic glass containing ∼55% Cu5Y particles (CYA-composite) was studied over the temperature range of 400–600 °C in dry air. The results generally showed that the oxidation kinetics of the composite obeyed a two-stage parabolic-rate law, with its steady-state parabolic-rate constants (kp values) increased with temperature. In addition, the oxidation rates of the composite were significantly lower than those of the polycrystalline Cu–20%Y alloy. The scales formed on the composite consisted mostly of hexagonal-Y2O3 (h-Y2O3) and minor CuO, while significant amounts of Cu2O and CuO, with minor amounts of Y2O3 were detected for the Cu–20%Y alloy. It was found that the absence of Cu2O is responsible for the slower oxidation rates of CYA-composite.
關聯: 16(5), pp.629-635
URI: http://ntour.ntou.edu.tw/handle/987654321/23589
显示于类别:[材料工程研究所] 期刊論文

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