Plastic Deformation of Free-Standing Crystals of hcp 4 He
Plastic Deformation of Free-Standing Crystals of hcp 4 He
复制标题
hcp 4 He 独立晶体的塑性变形
DOI：
10.1103/physrevlett.39.815
复制
发表时间：
1977
影响因子：
8.6
通讯作者：
C. Elbaum
中科院分区：
文献类型：
--
作者：
D. J. Sanders;H. Kwun;A. Hikata;C. Elbaum
本文介绍了一种制备六方晶系He_4自支撑晶体的方法。应力-应变关系已被测量的条件下，无约束剪切塑性变形的晶体。确定了流变应力的上限为5× 104 dyn/cm 2。与约束晶体的实验进行了比较。
A method has been developed for producing free-standing crystals of hcp He 4. Stress-strain relations have been measured for such crystals plastically deformed under conditions of unconstrained shear. An upper bound for the flow stress of 5× 10 4 dyn/cm 2 is determined. Comparison is made with experiments on constrained crystals.