Department of Physics, Washington University, St Louis, MO 63130-4899, USA.
J Phys Condens Matter. 2012 Sep 19;24(37):375102. doi: 10.1088/0953-8984/24/37/375102. Epub 2012 Jul 27.
The volume expansion coefficients (α) of twenty-five glass-forming transition metal alloy liquids, measured using the electrostatic levitation technique, are reported. An inverse correlation between α and the cohesive energy is found. The predicted values of α from this relationship agree reasonably well with the published data for thirty other transition metal and alloy liquids; some disagreement was found for a few alloys containing significant amounts of group III and IV elements. A theoretical argument for this empirical relationship is presented.
本文报道了使用静电悬浮技术测量的 25 种玻璃形成过渡金属合金液体的体积膨胀系数(α)。发现α与内聚能之间存在反比关系。从这个关系预测的α值与其他 30 种过渡金属和合金液体的公布数据相当吻合;对于包含大量 III 族和 IV 族元素的一些合金,存在一些分歧。本文提出了一个关于这种经验关系的理论论据。