Abnormal deformation properties of some single crystals of tetragonal syngony

2015 ◽  
Vol 37 (0) ◽  
pp. 8-19
Author(s):  
М. Д. Раранський ◽  
В. Н. Балазюк ◽  
М. М. Гунько
Keyword(s):  
Single Crystals ◽  
Deformation Properties

Deformation properties of high purity α-Fe single crystals

1983 ◽  
Vol 17 (7) ◽  
pp. 905-908 ◽  
Author(s):  
M. Feller-Kniepmeier ◽  
M. Hundt
Keyword(s):  
Single Crystals ◽  
High Purity ◽  
Deformation Properties

scholarly journals Abnormal Deformation Properties and Auxeticity of Single Crystals of Trigonal System

2017 ◽  
Vol 39 (2) ◽  
pp. 245-263 ◽  
Author(s):  
M. D. Raransky ◽  
◽  
V. N. Balazyuk ◽  
M. M. Gunko ◽  
A. Ya. Struk ◽  
...  
Keyword(s):  
Single Crystals ◽  
Trigonal System ◽  
Deformation Properties

Deformation properties of vanadium single crystals

1970 ◽  
Vol 22 (3) ◽  
pp. 321-326 ◽  
Author(s):  
J. Bressers ◽  
M. Heerschap ◽  
P. De Meester
Keyword(s):  
Single Crystals ◽  
Deformation Properties

The Microstructure of Shock-Synthesized Diamond

1967 ◽  
Vol 25 ◽  
pp. 324-325
Author(s):  
Lucien F. Trueb
Keyword(s):  
Single Crystals ◽  
Preferred Orientation ◽  
High Magnification ◽  
Texture Pattern ◽  
Shock Process ◽  
New Type ◽  
Diffraction Diagram

A new type of synthetic industrial diamond formed by an explosive shock process has been recently developed by the Du Pont Company. This material consists of a mixture of two basically different forms, as shown in Figure 1: relatively flat and compact aggregates of acicular crystallites, and single crystals in the form of irregular polyhedra with straight edges.Figure 2 is a high magnification micrograph typical for the fibrous aggregates; it shows that they are composed of bundles of crystallites 0.05-0.3 μ long and 0.02 μ. wide. The selected area diffraction diagram (insert in Figure 2) consists of a weak polycrystalline ring pattern and a strong texture pattern with arc reflections. The latter results from crystals having preferred orientation, which shows that in a given particle most fibrils have a similar orientation.

A New Defect in Polyethylene Single Crystals

1973 ◽  
Vol 31 ◽  
pp. 70-71
Author(s):  
E. L. Thomas ◽  
S. L. Sass
Keyword(s):  
Single Crystals ◽  
Screw Dislocation ◽  
Small Distance ◽  
Dipole Model ◽  
Dislocation Dipole ◽  
Chain Folding ◽  
Black And White ◽  
Polymer Crystal ◽  
Different Types

In polyethylene single crystals pairs of black and white lines spaced 700-3,000Å apart, parallel to the [100] and [010] directions, have been identified as microsector boundaries. A microsector is formed when the plane of chain folding changes over a small distance within a polymer crystal. In order for the different types of folds to accommodate at the boundary between the 2 fold domains, a staggering along the chain direction and a rotation of the chains in the plane of the boundary occurs. The black-white contrast from a microsector boundary can be explained in terms of these chain rotations. We demonstrate that microsectors can terminate within the crystal and interpret the observed terminal strain contrast in terms of a screw dislocation dipole model.

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