包覆状态下的大块Pb晶体的动力学过热  

The Kinetic Superheating of Bulk Pb Crystal without Free Surface

作　　者：周明[1] 江秋[1] 李杭[2] 赵利峰 

机构地区：[1]吉林工学院实习工厂,吉林长春130012 [2]吉林职业师范学院机械工程系,吉林长春130052 [3]长春市量具刃具厂,吉林长春130021

出　　处：《吉林工学院学报（自然科学版）》2001年第2期20-23,共4页Journal of Jilin Institute of Technology

基　　金：国家自然科学基金!资助项目 ( 5993 1 0 3 0 )

摘　　要：研究了非自由表面大块晶体Pb的过热 ,主要介绍通过有效的方法制得试样。然后 ,用DSC -7准确测量大块晶体Pb在不同加热速度条件下的过热度 ,从而得出大块晶体Pb能够产生动力学过热。The superheating in the melting of bulk Pb crystal without free surface has been studied. Effective methods for the preparation of the specimens are presented. Melting points of the samples were determined by a differential scanning calorimetre of the model DSC 7 with various speeds. It is found that kinetic superheating can occur in the system of bulk Pb crystal without free surface.

关 键 词：大块晶体 熔化温度 动力学过热 包覆状态 铅晶体 

分 类 号：O793[理学—晶体学]