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| 在固液混合相区物质剪切模量的讨论 | |
| 引用本文： | 冉宪文,汤文辉,谭华,戴诚达.在固液混合相区物质剪切模量的讨论[J].高压物理学报,2007,21(2):178-182. |
| 作者姓名： | 冉宪文 汤文辉 谭华 戴诚达 |
| 作者单位： | 1. 中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川绵阳,621900;国防科技大学理学院技术物理研究所,湖南长沙,410073 2. 国防科技大学理学院技术物理研究所,湖南长沙,410073 3. 中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川绵阳,621900 |
| 基金项目： | 国家自然科学基金项目(10276039) |
| 摘 要： | 从实验和理论两个方面对处于固液相变平衡条件下物质在固液混合相区的剪切模量进行了讨论，认为物质的剪切模量在开始熔化时并不等于零。采用逾渗理论对物质在固液混合相区的固相连通性进行了计算，得到物质整体剪切模量消失的临界熔化质量分数为0.687左右。所给出的物质的熔化失稳因子F(p)能够定性的描述处于固液相变平衡条件下物质固液混合相区内相关物理参量的变化。 |
| 关 键 词： | 固液混合相区 剪切模量 逾渗理论 纵波声速 体波声速 熔化失稳因子 |
| 文章编号： | 1000-5773（2007）02-0178-05 |
| 收稿时间： | 2006-02-09 |
| 修稿时间： | 2006-02-092006-05-18 |
Discussion on Shear Modulus of Materials at Solid-Liquid Phase Region |
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| RAN Xian-Wen,TANG Wen-Hui,TAN Hua,DAI Cheng-Da.Discussion on Shear Modulus of Materials at Solid-Liquid Phase Region[J].Chinese Journal of High Pressure Physics,2007,21(2):178-182. | |
| Authors: | RAN Xian-Wen TANG Wen-Hui TAN Hua DAI Cheng-Da |
| Institution: | 1. Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP ,Mianyang 621900, China ; 2. Physical Institute of Technology, College of Science, National University of Defense Technology ,Changsha 410073,China |
| Abstract: | From theoretical and experimental aspects,the shear modulus of material at the solid-liquid phase region was discussed when the material has attained its phase transition equilibrium and concluded that the shear modulus did not equal to zero as soon as the material began to melt.Using percolation theory,the connectivity of solid phase in solid-liquid phase region was calculated and the critical melting mass fraction is 0.687 when the shear modulus of material equal to zero.The melting unstable factor of material,presented by us,can represent qualitatively the change of correlative physical parameters in melting process. |
| Keywords: | solid-liquid phase region shear modulus percolation longitudinal sound velocity body sound velocity melting unstable factor |
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