金属玻璃中的非晶多形态转变

曾桥石, 尹梓梁, 楼鸿波

Polyamorphic Transitions in Metallic Glasses

ZENG Qiaoshi, YIN Ziliang, LOU Hongbo

图2 Ce68Al10Cu20Co2金属玻璃体积随压力的变化关系[63] (a) 3D renderings of reconstructed tomographic data of Ce68Al10Cu20Co2 metallic glass (MG) at different pressures (b) The volume change of Ce68Al10Cu20Co2 MG through the polyamorphic transition (Relative volume change (V/V0) obtained by TXM (solid red balls) as a function of pressure compared with the power law calculations of q1 (2.5 power law: blue diamonds, 3.0 power law: green squares). The dashed lines represent fitting using the second-order Birch-Murnaghan isothermal equation of state (BM-EOS). V—volume, V0—volume at 0 GPa, q1—peak position of the first sharp diffraction peak, q10—peak position of the first sharp diffraction peak at 0 GPa)

Fig.2 The volume change as a function of pressure determined by X-ray transmission microscopy (TXM) and XRD[63]