Free volume and elastic properties changes in Cu–Zr–Ti–Pd bulk glassy alloy on heating

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• 作者：Dmitri V. Louzguine-Luzgin ; Alain Reza Yavari ; Mikio Fukuhara ; Katsumi Ota ; Guoqiang Xie ; Gavin Vaughan ; Akihisa Inoue
• 关键词：Free volume ; Phase transformations ; Icosahedral phase ; XRD ; DSC
• 刊名：Journal of Alloys and Compounds
• 出版年：2007
• 出版时间：4 April 2007
• 年：2007
• 卷：431
• 期：1-2
• 页码：136-140
• 全文大小：245 K

文摘

The variation of free volume and elastic properties of the Cu₅₅Zr₃₀Ti₁₀Pd₅ glassy alloy on heating was studied. The structure changes on heating were studied by synchrotron X-ray diffraction, differential scanning and isothermal calorimetries. The studied glassy alloy shows a rather high Poisson's ratio exceeding 0.42 which is maintained after the structure relaxation and primary devitrification. Young's and Shear modules decrease upon primary devitrification while Bulk modulus exhibits a maximum after structural relaxation.