Phase transition for models of an elastic medium with residual stress

1999 ◽  
Vol 97 (4) ◽  
pp. 4280-4305
Author(s):  
V. G. Osmolovskii
Keyword(s):  
Phase Transition ◽  
Residual Stress ◽  
Elastic Medium

A search for a low temperature phase transition prior to superconducting behavior in the YBa2Cu3O7 compound

1990 ◽  
Vol 5 (9) ◽  
pp. 1799-1801 ◽  
Author(s):  
M. A. Rodriguez ◽  
D. P. Matheis ◽  
S. S. Bayya ◽  
J. J. Simmins ◽  
R. L. Snyder ◽  
...  
Keyword(s):  
Phase Transition ◽  
Residual Stress ◽  
High Resolution ◽  
Lattice Parameters ◽  
Temperature Phase ◽  
X Ray ◽  
Temperature Range ◽  
Temperature Phase Transition ◽  
Diffraction Peaks ◽  
Low Temperature Phase

We report the results of a systematic examination of the lattice parameters for the YBa2Cu3O7 compound in the 100 K to 110 K temperature range by means of high resolution synchrotron x-ray powder diffraction techniques. The data indicate a linear decrease in the lattice parameters with decreasing temperature over this temperature range. An observed asymmetric broadening of the diffraction peaks is explained by the presence of residual stress in the lattice.

Explosion as a phase transition due to the change of the gradient symmetry of the distortion tensor.

2021 ◽  
Author(s):  
Alexander Braginsky
Keyword(s):  
Phase Transition ◽  
Elastic Medium ◽  
Continuous Medium ◽  
Equations Of State ◽  
Fundamental Interaction ◽  
Temperature Plasma ◽  
Linear Defects ◽  
Critical Stresses ◽  
Distortion Tensor ◽  
Conjugate Stress

Abstract It is shown that the destruction of a continuous elastic medium is a phase transition associated with a change in the gradient symmetry of the equations of state for the distortion tensor. The equations of state for the distortion tensor, as a compensating field of the minimal fundamental interaction, are derived from the action minimum. In a continuous elastic medium, the distortion tensor is proportional to the conjugate stress tensor. The continuous medium is destroyed at critical stresses or pressures. At the same time, the vortex tension of the distortion tensor penetrates into it and the elasticity disappears. As a result of this phase transition, linear defects and cracks are formed in solids state, and high-temperature plasma occurs in the gas and an explosion occurs. It is shown that the explosion and lightning are the same phase transition, which is caused by the occurrence of a critical vortex tension of the distortion tensor.

Effect of phase transition on micro-grinding-induced residual stress

2020 ◽  
Vol 281 ◽  
pp. 116647 ◽  
Author(s):  
Zishan Ding ◽  
Gaoxiang Sun ◽  
Miaoxian Guo ◽  
Xiaohui Jiang ◽  
Beizhi Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Residual Stress

Domain‐Size‐Dependent Residual Stress Governs the Phase‐Transition and Photoluminescence Behavior of Methylammonium Lead Iodide

2021 ◽  
pp. 2008088
Author(s):  
Kwang Jae Lee ◽  
Bekir Turedi ◽  
Andrea Giugni ◽  
Muhammad Naufal Lintangpradipto ◽  
Ayan A. Zhumekenov ◽  
...  
Keyword(s):  
Phase Transition ◽  
Residual Stress ◽  
Domain Size ◽  
Lead Iodide ◽  
Size Dependent ◽  
Methylammonium Lead Iodide ◽  
Photoluminescence Behavior
Sign in / Sign up

Export Citation Format

Share Document