Sequence of dielectric anomalies and high-temperature relaxation behavior inNa1/2Bi1/2TiO3

1994 ◽  
Vol 49 (17) ◽  
pp. 11550-11559 ◽  
Author(s):  
C.-S. Tu ◽  
I. G. Siny ◽  
V. H. Schmidt
Keyword(s):  
High Temperature ◽  
Relaxation Behavior ◽  
Temperature Relaxation

HIGH TEMPERATURE RELAXATION MECHANISMS IN Cu-Al SOLID SOLUTIONS

1985 ◽  
Vol 46 (C10) ◽  
pp. C10-367-C10-370 ◽  
Author(s):  
S. BELHAS ◽  
A. RIVIERE ◽  
J. WOIRGARD ◽  
J. VERGNOL ◽  
J. DE FOUQUET
Keyword(s):  
High Temperature ◽  
Solid Solutions ◽  
Temperature Relaxation

Reloading Stress Relaxation Behavior Analysis Based on a Creep Model for High Temperature Bolting Steel

2013 ◽  
Vol 328 ◽  
pp. 950-954
Author(s):  
Wei Wei Zhang ◽  
Hong Xu ◽  
Hong Yuan Li
Keyword(s):  
High Temperature ◽  
Stress Relaxation ◽  
Steady State Creep ◽  
Relaxation Behavior ◽  
Creep Model ◽  
National Research Institute ◽  
Time Intervals ◽  
Stress Relaxation Behavior ◽  
Proposed Model ◽  
Good Agreement

An analytical method based on a creep model is being developed to investigate the effect of retightening on stress relaxation behavior for high-temperature turbine and valve studs/bolts. In order to validate the approach, the calculated results are compared to the results of uniaxial reloading stress relaxation testing, which were performed by the National Research Institute for Metals of Japan (NRIM) for 12Cr-1Mo-1W-1/4V stainless steel bolting material at 550°C. It was shown that the proposed model based on Altenbach-Gorash-Naumenko creep model for the primary and steady state creep could be applied for the present data. The calculated residual stresses versus time curves were in good agreement with the measured for initial stress level of 273.6MPa at 550°C and for specific reloading time intervals of 24, 72, 240, and 720 hours.

Oxygen defect related high temperature dielectric relaxation behavior in (Ba,La)(Zr,Sn,Ti)O3 ceramics

2021 ◽  
Vol 127 (10) ◽  
Author(s):  
Ke Meng ◽  
Wenhua Li ◽  
Xingui Tang ◽  
Xiaobin Guo ◽  
Qiuxiang Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Dielectric Relaxation ◽  
Relaxation Behavior ◽  
Oxygen Defect ◽  
Dielectric Relaxation Behavior

Temperature Relaxation between Systems with Negative Kelvin Temperatures

1987 ◽  
Vol 42 (6) ◽  
pp. 556-558 ◽  
Author(s):  
Ch. Zylka ◽  
G. Vojta
Keyword(s):  
High Temperature ◽  
Spin Systems ◽  
Mixing Rule ◽  
High Temperature Approximation ◽  
Temperature Relaxation ◽  
Harmonic Mixing

We investigate the problem of distributing a given amount of heat among three systems under the following conditions: The systems are able to exhibit negative Kelvin temperatures, and heat equalization always fulfills a harmonic mixing rule T = 2T(1) · T(2)/(T(1) + T(2)). Just this happens for spin systems in the high temperature approximation.

An analysis of the high‐temperature relaxation in polycrystalline magnetite

1994 ◽  
Vol 75 (10) ◽  
pp. 6100-6102
Author(s):  
J. Castro ◽  
D. Martinez ◽  
J. Rivas ◽  
H. J. Blythe
Keyword(s):  
High Temperature ◽  
Temperature Relaxation
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