Investigation of Viscosity Measurements of Molten Cu-Zr-Al Alloys

摘要：

　　Viscosity reflects kinetic behaviors of metallic glass liquids,as well as the changes of structures of liquids with temperature.In the present work,the viscosity of superheated Cu-Zr-Al alloys has been detected by a torsional oscillating viscometer,and the experimental parameters have been explored.The experimental results indicate that Cu-Zr-Al alloys react with corundum crucibles and are not oxidated easily in the viscometer.In addition,the influence of thermal history on viscosity measurements is not inconsiderable.By eliminating the above factors,an abnormal three-stage trend of viscosity changes is observed finally.Analysis shows that this abnormal dynamic phenomenon probably is attributed to the transition of clusters in different temperature ranges of the glass liquids,and might correspond to the abnormal thermodynamic behavior observed in Cu-Zr-Al liquids.

关键词： Viscosity Cu-Zr-Al Interfering factor Three-stage trend

作者: Chao Zhou Lina Hu

作者单位: Key Laboratory of Liquid Structure and Heredity of Materials(Ministry of Education), Shandong University, Jinan, 250061, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 781-787

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）