Prismatic slip in zirconium single crystals at elevated temperatures

1975 ◽  
Vol 6 (7) ◽  
pp. 1217-1222 ◽  
Author(s):  
A. Akhtar
Keyword(s):  
Single Crystals ◽  
Elevated Temperatures ◽  
Prismatic Slip

The Temperature-Dependent Ideal Shear Strength of Solid Single Crystals

2018 ◽  
Vol 85 (3) ◽  
Author(s):  
Tianbao Cheng ◽  
Daining Fang ◽  
Yazheng Yang
Keyword(s):  
Shear Strength ◽  
Theoretical Model ◽  
Melting Point ◽  
Single Crystals ◽  
Elevated Temperatures ◽  
Absolute Zero ◽  
Temperature Dependent ◽  
Temperature Changes ◽  
First Time ◽  
The Ideal

Knowledge of the ideal shear strength of solid single crystals is of fundamental importance. However, it is very hard to determine this quantity at finite temperatures. In this work, a theoretical model for the temperature-dependent ideal shear strength of solid single crystals is established in the view of energy. To test the drawn model, the ideal shear properties of Al, Cu, and Ni single crystals are calculated and compared with that existing in the literature. The study shows that the ideal shear strength first remains approximately constant and then decreases almost linearly as temperature changes from absolute zero to melting point. As an example of application, the “brittleness parameter” of solids at elevated temperatures is quantitatively characterized for the first time.

DEFORMATION OF Al2O3 SINGLE CRYSTALS BETWEEN 25°C AND 1800°C : BASAL AND PRISMATIC SLIP

1981 ◽  
Vol 42 (C3) ◽  
pp. C3-43-C3-47 ◽  
Author(s):  
J. Castaing ◽  
J. Cadoz ◽  
S. H. Kirby
Keyword(s):  
Single Crystals ◽  
Prismatic Slip

Dielectric, piezoelectric and elastic constants of Ca3TaGa3Si2O14 single crystals at elevated temperatures

2018 ◽  
Vol 537 (1) ◽  
pp. 255-263
Author(s):  
Yuriy Suhak ◽  
Michal Schulz ◽  
Andrei Sotnikov ◽  
Hagen Schmidt ◽  
Steffen Ganschow ◽  
...  
Keyword(s):  
Single Crystals ◽  
Elastic Constants ◽  
Elevated Temperatures

Crack Orientation Dependence for Fatigue Behavior of Titanium Single Crystals

2007 ◽  
Vol 345-346 ◽  
pp. 351-354 ◽  
Author(s):  
Takahiro Sakamoto ◽  
Shinji Ando ◽  
Hiromoto Kitahara ◽  
Masayuki Tsushida ◽  
Hideki Tonda
Keyword(s):  
Single Crystals ◽  
Fatigue Behavior ◽  
Thin Sheet ◽  
Orientation Dependence ◽  
Test Method ◽  
Prismatic Slip ◽  
Bending Mode ◽  
Bending Fatigue Test ◽  
Fixed End ◽  
Fatigue Fracture Behavior

In this present study, the fatigue behavior of titanium single crystals containing cracks growing in different crystallographic orientations has been investigated. To investigate fatigue fracture behavior of small single crystals, plain bending fatigue test method for thin sheet specimen was developed. One end of the sheet specimen is fixed at a voice coil of the loudspeaker and the other end is set free. A bending mode resonance occurs in the specimen due to forced vibration at the fixed end. In A-specimen, the notch plane and the direction are (11-20) and [1-100], respectively, the crack propagated parallel to {1-100} plane and striation-like markings were observed on the fatigue surfaces. In B-specimen with a notch of (1-100) and [11-20], the crack also propagated parallel to {1-100} plane as similar to A-specimen. These cracks are deduced to extend by alternating shear on two intersecting prismatic slip systems at the crack tip. In F-specimen with a notch of (0001) and [11-20], the crack propagated parallel to (0001) and twins were observed near the crack. As a result, S-N curves of each specimen showed strong orientation dependence and the fatigue strength of F-specimen was the highest in these specimens.

Compression of corundum single crystals at elevated temperatures I. Kinking in corundum single crystals

1971 ◽  
Vol 7 (1) ◽  
pp. 277-286 ◽  
Author(s):  
V. G. Govorkov ◽  
E. P. Kozlovskaya ◽  
G. V. Berezhkova ◽  
N. N. Voinova
Keyword(s):  
Single Crystals ◽  
Elevated Temperatures
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