Experimental evidence for the existance of dislocations with Burgers vector < 100> in molybdenum crystals 钼晶体中存在有柏格斯矢量为〈100〉的位错的实验证据
It was found that grown in dislocations and growth sector boundaries are the predominant defects in the crystals. the majority of dislocations are along the [ 100] lines, and Burgers vector is [ 001] direction. 发现该晶体中的生长缺陷主要为生长位错和生长扇界,大部分位错沿〔100〕方向,Burgers矢量为〔001〕。
Because of the Burgers vector of the screw dislocations in [ 0001] direction are much larger than that of the edge dislocations, one can distinguish the screw dislocations from the edge dislocations according to the depth of etch pits. 由于[0001]方向的螺型位错的Burgers矢量比刃型位错的Burgers矢量大得多,故可从蚀坑的深浅来判别螺型位错和刃型位错。
The influence of the dislocation Burgers vector, Dundurs 'constants, the disclination strength and the dipole arm length on the contact zone and the stress intensity factors are studied. 研究了位错Burgers矢量,Dundurs常数,向错强度以及偶臂长度对裂纹闭合区和裂纹尖端应力强度因子的影响。
Analysis methods and application software on the pipeline pressure drop along the way, the velocity vector and streamlines the analysis, by comparison with experimental data validation paste reasonable feasibility of the Burgers model for the mechanical simulation model to describe. 对管道沿程压降、速度矢量和流线图进行了分析,并与实验数据对比验证了以Burgers模型为力学仿真模型描述膏体合理可行性。