物理学报2011，Vol.60Issue(4)：495-501,7.
液态结构与性质关系Ⅰ——Mg熔体的运动黏度及与熔体微观结构的关系
Relationship between liquid structure and property Ⅰ- Kinematic viscosity of magnesium melt and its relationship with the microstructure
摘要
Abstract
The method of crucible rotating oscillation damping was employed to measure the kinematic viscosity of magnesium melt and the curve of viscosity v versus temperature T from 935 K to 1190 K was obtained. It is exponential increase (decrease) law of viscosity with the temperature during heating and cooling process; Besides, based on the physical model for evolution behavior of atomic cluster in liquid structure, the main structural information of magnesium melt in this temperature interval - the curve of size d of atomic cluster versus temperature T was obtained; By analyzing the experimental and calculated data, it is found that both kinematic viscosity and size of atomic cluster of magnesium melt are monodrome function of the temperature and the relation between them is linear function, i.e. , v = v0 + K · d(T). This relation reveals the change characteristic of viscosity for magnesium melt microstructure, which presents a new way for calculating kinematic viscosity of metal melt and understanding the micro-nature deeply.关键词
金属熔体/结构与黏度相关性/原子集团演变/线性关系Key words
metal melt/ correlation between structure and viscosity/ evolution of atomic clusters/ linear relationship引用本文复制引用
弭光宝,李培杰,ОхапКиН A B,КОнстаНтинова H Ю,Cабир3янов A A,лопель пC..液态结构与性质关系Ⅰ——Mg熔体的运动黏度及与熔体微观结构的关系[J].物理学报,2011,60(4):495-501,7.基金项目
国家重点基础研究发展计划(批准号:2007CB613702)和国际科技合作项目(批准号:2007DFC50090)资助的课题. （批准号:2007CB613702）
