Slip systems in gadolinium gallium garnet single crystals

1982 ◽  
Vol 17 (3) ◽  
pp. 878-884 ◽  
Author(s):  
H. Garem ◽  
J. Rabier ◽  
P. Veyssiere
Keyword(s):  
Single Crystals ◽  
Gadolinium Gallium Garnet ◽  
Slip Systems

scholarly journals Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhenghao Chen ◽  
Bhaskar Paul ◽  
Sanjib Majumdar ◽  
Norihiko L. Okamoto ◽  
Kyosuke Kishida ◽  
...  
Keyword(s):  
Single Crystals ◽  
Plastic Flow ◽  
Room Temperature ◽  
Resolve Shear Stress ◽  
Temperature Deformation ◽  
Slip Systems ◽  
Compression Tests ◽  
Plastic Deformation Behavior ◽  
Bulk Single Crystals ◽  
Micropillar Compression

AbstractThe plastic deformation behavior of single crystals of two transition-metal diborides, ZrB2 and TiB2 with the AlB2 structure has been investigated at room temperature as a function of crystal orientation and specimen size by micropillar compression tests. Although plastic flow is not observed at all for their bulk single crystals at room temperature, plastic flow is successfully observed at room temperature by the operation of slip on {1$${\bar{1}}$$ 1 ¯ 00}<11$${\bar{2}}$$ 2 ¯ 3> in ZrB2 and by the operation of slip on {1$${\bar{1}}$$ 1 ¯ 00}<0001> and {1$${\bar{1}}$$ 1 ¯ 00}<11$${\bar{2}}$$ 2 ¯ 0> in TiB2. Critical resolve shear stress values at room temperature are very high, exceeding 1 GPa for all observed slip systems; 3.01 GPa for {1$${\bar{1}}$$ 1 ¯ 00}<11$${\bar{2}}$$ 2 ¯ 3> slip in ZrB2 and 1.72 GPa and 5.17 GPa, respectively for {1$${\bar{1}}$$ 1 ¯ 00}<0001> and {1$${\bar{1}}$$ 1 ¯ 00}<11$${\bar{2}}$$ 2 ¯ 0> slip in TiB2. The identified operative slip systems and their CRSS values are discussed in comparison with those identified in the corresponding bulk single crystals at high temperatures and those inferred from micro-hardness anisotropy in the early studies.

The operative slip systems and strain hardening behaviour of β′-AgMg single crystals

1972 ◽  
Vol 14 (2) ◽  
pp. 545-559 ◽  
Author(s):  
M. O. Aboelfotoh
Keyword(s):  
Strain Hardening ◽  
Single Crystals ◽  
Slip Systems

Determining the activation energies and slip systems for dislocation nucleation in body-centered cubic Mo and face-centered cubic Ni single crystals

2011 ◽  
Vol 65 (3) ◽  
pp. 179-182 ◽  
Author(s):  
L. Wang ◽  
H. Bei ◽  
T.L. Li ◽  
Y.F. Gao ◽  
E.P. George ◽  
...  
Keyword(s):  
Single Crystals ◽  
Activation Energies ◽  
Dislocation Nucleation ◽  
Face Centered Cubic ◽  
Slip Systems ◽  
Body Centered Cubic ◽  
Face Centered

Luminescence and photoconductivity of gadolinium gallium garnet single crystals irradiated by high-energy electrons and neutrons

1993 ◽  
Vol 140 (2) ◽  
pp. 353-361 ◽  
Author(s):  
V. I. Vasyltsiv ◽  
Ya. M. Zakharko ◽  
A. O. Matkovskii ◽  
D. Yu. Sugak ◽  
S. B. Ubizskii ◽  
...  
Keyword(s):  
Single Crystals ◽  
High Energy ◽  
Gadolinium Gallium Garnet ◽  
High Energy Electrons

Void Shape Effects on Void Growth and Slip Systems Activity in Single Crystals

2014 ◽  
Vol 43 (7) ◽  
pp. 1571-1576 ◽  
Author(s):  
Wanchao Sun ◽  
Shan Lu
Keyword(s):  
Single Crystals ◽  
Void Growth ◽  
Slip Systems ◽  
Shape Effects ◽  
Void Shape

Faceted fatigue fracture and its relation to the crystallographic slip systems in Cu-16 at. Pct al single crystals

1991 ◽  
Vol 22 (2) ◽  
pp. 415-425 ◽  
Author(s):  
Sun Ig Hong ◽  
Campbell Laird
Keyword(s):  
Single Crystals ◽  
Fatigue Fracture ◽  
Slip Systems ◽  
Crystallographic Slip

Plastic Deformation of Mo(Si,Al)2 Single Crystals with the C40 Structure

1996 ◽  
Vol 460 ◽  
Author(s):  
M. Moriwaki ◽  
K. Ito ◽  
H. Inui ◽  
M. Yamaguchi
Keyword(s):  
Single Crystals ◽  
Deformation Behavior ◽  
Basal Slip ◽  
Room Temperature ◽  
Slip Systems ◽  
Temperature Range ◽  
Al Content ◽  
Partial Dislocations ◽  
Increasing Temperature ◽  
Critical Resolved Shear Stress

ABSTRACTThe deformation behavior of single crystals of Mo(Si,Al)2 with the C40 structure has been studied as a function of crystal orientation and Al content in the temperature range from room temperature to 1500°C in compression. Plastic flow is possible only above 1100°C for orientations where slip along <1120> on (0001) is operative and no other slip systems are observed over whole temperature range investigated. The critical resolved shear stress for basal slip decreases rapidly with increasing temperature and the Schmid law is valid. Basal slip appears to occur through a synchroshear mechanism, in which a-dislocations (b=1/3<1120>) dissociate into two synchro-partial dislocations with the identical Burgers vector(b*1/6<1120>) and each synchro-partial further dissociates into two partials on two adjacent planes.

A Continuum Model for Single Crystal Cyclic Plasticity

2003 ◽  
Vol 779 ◽  
Author(s):  
Biqiang Xu ◽  
Yanyao Jiang
Keyword(s):  
Single Crystal ◽  
Single Crystals ◽  
Kinematic Hardening ◽  
Strain Curve ◽  
Cyclic Behavior ◽  
Cyclic Plasticity ◽  
Amplitude Dependence ◽  
Slip Systems ◽  
Stress Strain ◽  
Copper Single Crystals

AbstractA constitutive model was developed to bridge the cyclic plasticity behavior of single crystals and the corresponding characteristic dislocation structures. Yield and flow were built on the individual slip systems. The Armstrong-Frederick kinematic hardening rule was invoked to capture the Bauschinger effect. A material memory parameter was introduced to consider the amplitude dependence of cyclic hardening. Latent hardening considering the interactions among the slip systems was used to describe the anisotropic cyclic behavior. The experimental results of copper single crystals were used to validate the model developed. It was found that the model was able to adequately describe the well-known three distinctive regions in the cyclic stress-strain curve of the FCC single crystal oriented for single slip and the associated dislocation substructures. The model was capable of capturing the enhanced hardening observed in copper single crystals in multi-slip orientations. For a given loading history, the model can predict not only the saturated stress-strain response but also the detailed evolution of the transient cyclic behavior. The characteristic dislocation structures can be featured with the slip evolution.

Deformation behavior and slip systems of quenched β-CuZn single crystals

1979 ◽  
Vol 27 (7) ◽  
pp. 1219-1230 ◽  
Author(s):  
S. Hanada ◽  
H. Yamamoto ◽  
O. Izumi
Keyword(s):  
Single Crystals ◽  
Deformation Behavior ◽  
Slip Systems
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