Deformation behaviour of single crystals of InP in uniaxial compression

1980 ◽  
Vol 15 (6) ◽  
pp. 1469-1477 ◽  
Author(s):  
G. T. Brown ◽  
B. Cockayne ◽  
W. R. Macewan
Keyword(s):  
Single Crystals ◽  
Uniaxial Compression ◽  
Deformation Behaviour

scholarly journals Влияние термообработки на деформационные свойства кристаллов сплава Ni-=SUB=-49-=/SUB=-Fe-=SUB=-18-=/SUB=-Ga-=SUB=-27-=/SUB=-Co-=SUB=-6-=/SUB=- при их сжатии вдоль оси [011]

2020 ◽  
Vol 46 (6) ◽  
pp. 7
Author(s):  
Г.А. Малыгин ◽  
В.И. Николаев ◽  
В.М. Крымов ◽  
А.В. Солдатов
Keyword(s):  
Shape Memory ◽  
Single Crystals ◽  
Uniaxial Compression ◽  
Temperature Interval ◽  
Thermomechanical Treatment ◽  
Axis Direction ◽  
Heat Treated ◽  
Single Stress ◽  
Subsequent Quenching ◽  
Initial Crystal

Abstract Stress–strain diagrams (σ–ε curves) have been studied during uniaxial compression of Ni_49Fe_18Ga_27Co_6 alloy single crystals in the [011] axis direction for the initial samples and those after 15-min annealing at 1373 K with subsequent quenching in water. It was established that the σ–ε curves of initial crystals exhibited a one-stage character and showed a single stress decay, whereas the curves of heat-treated and quenched crystals displayed two stress decays. The shape-memory (SM) strain recovery on heating the compression-strained crystals showed an anomalous (burstlike) character. Investigation of the reproducibility of burstlike recovery of SM strain in a series of thermomechanical treatment cycles showed that the recovery took place in quenched crystals, whereas the temperature interval of SM recovery in the initial crystal grew from 1 to 12 K with increasing number of thermomechanical treatment cycles.

scholarly journals Interference Phenomena in Deformed Single Crystals of Ice

1971 ◽  
Vol 10 (59) ◽  
pp. 269-286 ◽  
Author(s):  
G. J. Readings ◽  
J. T. Bartlett
Keyword(s):  
Optical Properties ◽  
Simple Model ◽  
Single Crystals ◽  
Uniaxial Compression ◽  
Basal Plane ◽  
Quantitative Agreement ◽  
Optic Axis ◽  
Interference Fringes ◽  
Alternative Hypotheses ◽  
Active Contribution

AbstractWhen rectangular single crystals of ice were subjected to uniaxial compression parallel to their Long axes and viewed between crossed polarizers, interference fringes were often observed. Some of these interference bands were associated with grain boundaries formed as a result of “kinking”. These can be explained in terms of the known anisotropic optical properties of ice and the change in the orientation of the optic axis across the boundary. This case has been analysed in detail with the aid of Jones’ calculus and good quantitative agreement exists between the theory and the experimental observations.Other interference bands were observed parallel to the trace of the basal plane on the surface of some deformed crystals. Alternative hypotheses for the explanation of this phenomenon have been considered and it seems probable that these bands are a result of slight random misorientations between adjacent slip lamellae. Applying Jones’ calculus to a simple model of such a deformed crystal indicates that the required misorientations are of the order of 1º If this explanation is correct, it implies that dislocations with non-basal Burgers vectors (probablyc[0001]) make an active contribution to the deformation.

Evolution of Specimen Shape for Uniaxial Compression of Single Crystals

1997 ◽  
Vol 38 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Jacques Castaing ◽  
Terence E Mitchell ◽  
Arturo Dominguez Rodriguez
Keyword(s):  
Single Crystals ◽  
Uniaxial Compression ◽  
Specimen Shape

Uniaxial compression of [001]-oriented CaFe2As2 single crystals: the effect of microstructure and temperature on superelasticity Part II: Modeling

2021 ◽  
Vol 203 ◽  
pp. 116462
Author(s):  
Ian N. Bakst ◽  
John T. Sypek ◽  
Sriram Vijayan ◽  
Shuyang Xiao ◽  
Mark Aindow ◽  
...  
Keyword(s):  
Single Crystals ◽  
Uniaxial Compression ◽  
Effect Of Microstructure
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