Density and viscosity of Ni-Ti melts measured by an electrostatic levitation technique
Density and viscosity of Ni-Ti melts measured by an electrostatic levitation technique
复制标题
通过静电悬浮技术测量镍钛熔体的密度和粘度
DOI：
10.1016/j.ijheatmasstransfer.2022.123435
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发表时间：
2022
影响因子：
5.2
通讯作者：
ISHIKAWA Takehiko
中科院分区：
文献类型：
--
作者：
WATANABE Manabu;KOYAMA Chihiro;WATANABE Yuki;ISHIKAWA Takehiko
利用静电悬浮技术在高真空条件下测量了镍钛熔体的密度和粘度。Ni-Ti熔体的密度可表示为温度的线性函数。Ni-Ti熔体粘度随温度的变化可用Arrhenius函数再现。超额体积是由密度计算结果得到的，并用混合热和超额吉布斯能的热力学函数进行了讨论。粘度与线性可加性呈正偏差。从与理论模型的比较来看，粘性大致符合科兹洛夫模型。Ni-Ti熔体的粘度可能受团簇形成的影响，团簇的形成是基于同向熔融化合物形成的。
Density and viscosity of Ni–Ti melts were measured under high-vacuum conditions using an electrostatic levitation technique. The density of Ni–Ti melts can be expressed as a linear function of temperature. The variation of viscosity of Ni–Ti melts with temperature can be reproduced by an Arrhenius function. The excess volume was obtained from the density results and is discussed using the thermodynamic functions of enthalpy of mixing and excess Gibbs energy. Viscosity shows a positive deviation from linear additivity. From comparison with theoretical models, the viscosity is roughly reproduced by Kozlov's model. The viscosity of Ni–Ti melts is possibly influenced by formation of clusters, which form based on congruently melting compounds.