Thermal expansion of single-crystal Gd/sub 5/(Si/sub 1.95/Ge/sub 2.05/) showing unusual first-order transformation

2002 ◽  
Vol 38 (5) ◽  
pp. 3252-3254 ◽  
Author(s):  
M. Han ◽  
J.A. Paulsen ◽  
J.E. Snyder ◽  
D.C. Jiles ◽  
T.A. Lograsso ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Single Crystal ◽  
First Order

MAGNETIC BEHAVIOUR OF A Cr+1.6 at.% Si SINGLE CRYSTAL

1993 ◽  
Vol 07 (01n03) ◽  
pp. 630-633 ◽  
Author(s):  
J.A.J. LOURENS ◽  
H.L. ALBERTS
Keyword(s):  
Thermal Expansion ◽  
Single Crystal ◽  
Magnetic Behaviour ◽  
Itinerant Electron ◽  
Velocity Of Sound ◽  
Continuous Component ◽  
Continuous Transition ◽  
First Order ◽  
Theoretical Predictions ◽  
Order Discontinuity

Measurements of thermal expansion and velocity of sound around the Néel temperature (TN) of a Cr+1.6 at.% Si single crystal are presented. A weak continuous transition superimposed on a sharp first-order discontinuity was observed in the thermal expansion near TN. The continuous component is accurately described by a critical exponent power law. The sound velocity diverges sharply near TN in contrast with theoretical predictions for Cr-like itinerant electron antiferromagnets.

Stress and temperature-induced phase transitions and thermal expansion in (001)-cut PMN-31PT single crystal

2015 ◽  
Vol 652 ◽  
pp. 287-291 ◽  
Author(s):  
Xiaojuan Li ◽  
Zengzhe Xi ◽  
Peng Liu ◽  
Wei Long ◽  
Pinyang Fang
Keyword(s):  
Thermal Expansion ◽  
Phase Transitions ◽  
Single Crystal

Verification of first‐order magnetic phase transition in single crystal iron films

1982 ◽  
Vol 53 (11) ◽  
pp. 7966-7968 ◽  
Author(s):  
F. J. Rachford ◽  
G. A. Prinz ◽  
J. J. Krebs ◽  
K. B. Hathaway
Keyword(s):  
Phase Transition ◽  
Single Crystal ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Iron Films ◽  
First Order ◽  
Order Magnetic Phase Transition

ChemInform Abstract: Magnetization, Crystal Structure and Anisotropic Thermal Expansion of Single-Crystal SrEr2O4.

ChemInform ◽  
2015 ◽  
Vol 46 (10) ◽  
pp. no-no
Author(s):  
Hai-Feng Li ◽  
Andrew Wildes ◽  
Binyang Hou ◽  
Cong Zhang ◽  
Berthold Schmitz ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Thermal Expansion ◽  
Single Crystal ◽  
Anisotropic Thermal Expansion

Thermal expansion anisotropy of a LiY0.5Er0.5F4 single crystal

1975 ◽  
Vol 10 (8) ◽  
pp. 1462-1463 ◽  
Author(s):  
J. S. Abell ◽  
I. R. Harris ◽  
B. Cockayne
Keyword(s):  
Thermal Expansion ◽  
Single Crystal ◽  
Thermal Expansion Anisotropy

A phenomenological model for thermally-induced hysteresis in polycrystalline shape memory alloys with internal loops

2021 ◽  
pp. 1045389X2110482
Author(s):  
Yuxiang Han ◽  
Haoyuan Du ◽  
Linxiang Wang ◽  
Roderick Melnik
Keyword(s):  
Shape Memory Alloys ◽  
Single Crystal ◽  
Shape Memory ◽  
Phenomenological Model ◽  
Landau Theory ◽  
Thermally Induced ◽  
First Order ◽  
Proposed Model ◽  
Crystal Model ◽  
Hysteretic Response

In the current study, a 1-D phenomenological model is constructed to capture the temperature-induced hysteretic response in polycrystalline shape memory alloys (SMAs). The martensitic and austenitic transformations are regarded as the first-order transitions. A differential single-crystal model is formulated on the basis of Landau theory. It is assumed that the transformation temperatures follow the normal distribution among the grains due to the anisotropic stress field developed in the material. The polycrystalline hysteretic response is expressed as the integration of single-crystal responses. Besides, the prediction strategy for incomplete transitions is presented, and the first-order reversal curves are obtained via density reassignment. The proposed model is numerically implemented for validation. Comparisons between the modeling results and the experimental ones demonstrate the capability of the proposed model in addressing the hysteresis in thermally-induced phase transformations.

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