scholarly journals Crystallographic anisotropy of the resistivity size effect in single crystal tungsten nanowires

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Dooho Choi ◽  
Matthew Moneck ◽  
Xuan Liu ◽  
Soong Ju Oh ◽  
Cherie R. Kagan ◽  
...  
1985 ◽  
Vol 61 (3-4) ◽  
pp. 281-289 ◽  
Author(s):  
I. Sakamoto ◽  
M. Fukuhara ◽  
Y. Koide ◽  
K. Yonemitsu

2011 ◽  
Vol 59 (6) ◽  
pp. 2309-2321 ◽  
Author(s):  
Dan Mordehai ◽  
Michael Kazakevich ◽  
David J. Srolovitz ◽  
Eugen Rabkin

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4563
Author(s):  
Yu Hou ◽  
Xujun Mi ◽  
Haofeng Xie ◽  
Wenjing Zhang ◽  
Guojie Huang ◽  
...  

The size (grain size and specimen size) effect makes traditional macroscopic forming technology unsuitable for a microscopic forming process. In order to investigate the size effect on mechanical properties and deformation behavior, pure copper wires (diameters range from 50 μm to 500 μm) were annealed at different temperatures to obtain different grain sizes. The results show that a decrease in wire diameter leads to a reduction in tensile strength, and this change is pronounced for large grains. The elongation of the material is in linear correlation to size factor D/d (diameter/grain size), i.e., at the same wire diameter, more grains in the section bring better plasticity. This phenomenon is in relationship with the ratio of free surface grains. A surface model combined with the theory of single crystal and polycrystal is established, based on the relationship between specimen/grain size and tensile property. The simulated results show that the flow stress in micro-scale is in the middle of the single crystal model (lower critical value) and the polycrystalline model (upper critical value). Moreover, the simulation results of the hybrid model calculations presented in this paper are in good agreement with the experimental results.


2020 ◽  
Vol 226 ◽  
pp. 106877 ◽  
Author(s):  
Yi Ma ◽  
Xianwei Huang ◽  
Wei Hang ◽  
Min Liu ◽  
Yuxuan Song ◽  
...  

2018 ◽  
Vol 185 ◽  
pp. 03015
Author(s):  
Nataliya Repina

In single crystal films of the Fe0,5Co0,5 alloys grown by the method of vacuum condensation, a metastable condition may be received that is similar to the completely disordering condition. Approximately during ten days after the condensation in the film at the room temperature the short range and then long range atomic ordering is developed. Simultaneously the changes of magnetic anisotropy, electroresistance and coercive force of the films were investigated. This investigations show that the appearance of the shot range atomic ordering increases the electroresistance of films and the long range atomic ordering reduces it. The dependence of coercive force from time to time at room temperature atomic ordering films Fe0,5Co0,5 alloys, and Fe0,75Co0,25. Found that the biggest change Hc (double) is observed in single-crystal films when changing mechanism of magnetization reverse. Most is a consequence of the changes to the crystallographic anisotropy.


2014 ◽  
Vol 2014 (0) ◽  
pp. _OS1112-1_-_OS1112-3_
Author(s):  
Takashi SUMIGAWA ◽  
Ryosuke SHIOHARA ◽  
Takayuki KITAMURA

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