| 温度诱导非连续液-液结构转变--液态物质新的物理图像 |
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| 引用本文： | 祖方遒.温度诱导非连续液-液结构转变--液态物质新的物理图像[J].合肥工业大学学报(自然科学版),2005,28(9):1019-1025. |
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| 作者姓名： | 祖方遒 |
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| 作者单位： | 合肥工业大学,材料科学与工程学院,安徽,合肥,230009 |
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| 基金项目： | 国家自然科学基金资助项目(50371042);教育部科学技术研究重点资助项目(104106);教育部高校骨干教师资助项目 (GG-805-10359-1848);合肥工业大学人才引进与选拔专项基金(RC-2002-1)和安徽省自然科学基金资助项目 (03046202) |
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| 摘 要： | 长期以来,合金成分-温度相图的液相线(TL)以上区域被视为均一的液相区,即传统平衡热力学理论所指的均匀液体.关于液体结构和性质对温度的关系,传统理论一直认为从TL到液-气临界点为连续渐变;然而,近年来的研究却观察到了不同于上述传统理论的新的物理图像;一些合金熔体在高于TL数百度的温度范围,可发生温度诱导液-液转变(TI-LLST),即熔体结构及诸方面性质随温度发生非连续的变化.
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| 关 键 词： | 熔体结构 物理图像 液-液转变 温度诱导 二元合金 |
| 文章编号： | 1003-5060(2005)09-1019-07 |
| 修稿时间： | 2005年6月30日 |
Temperature induced discontinuous liquid-liquid structure transition: New physical image of liquid matter |
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| ZU Fang-qiu.Temperature induced discontinuous liquid-liquid structure transition: New physical image of liquid matter[J].Journal of Hefei University of Technology(Natural Science),2005,28(9):1019-1025. |
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| Authors: | ZU Fang-qiu |
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| Abstract: | It is well known for over one hundred years that there is no other defined phase line above liquidus(T_L) in phase diagrams of ordinary binary systems.And the conventional view of liquids is that the liquid structures and properties change gradually with temperature from T_L to the critical point.However,in contrast to the conventional concepts,the author's research results of recent years show a novel physical image: temperature induced liquid-liquid structure transition(TI-LLST)can occur at temperatures of hundreds of degrees above T_L in some investigated binary melts,i.e.the structures and properties change discontinuously with temperature.In this paper,some aspects of the TI-LLST are summarily presented,and based on experimental results,the characteristics,rules and mechanism of the found TI-LLST are also theoretically analyzed. |
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| Keywords: | liquid structure physical image liquid-liquid transition temperature induction binary alloy |
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