Influence of Supercooling on the Thermally Induced First-Order Magnetic Transition in Magnetocaloric Compound La(Fe$_{0.88}$Si$_{0.12}$)$_{13}$

2011 ◽  
Vol 47 (10) ◽  
pp. 3387-3390 ◽  
Author(s):  
A. Fujita ◽  
S. Fujieda ◽  
K. Fukamichi
Keyword(s):  
Magnetic Transition ◽  
Thermally Induced ◽  
First Order

scholarly journals In Situ TEM Observation of Thermally-Induced First-Order Magnetic Transition in Itinerant-Electron Metamagnetic La(FexSi1−x)13 Compounds

2005 ◽  
Vol 46 (8) ◽  
pp. 1764-1767 ◽  
Author(s):  
Naoyuki Kawamoto ◽  
Yasukazu Murakami ◽  
Daisuke Shindo ◽  
Shun Fujieda ◽  
Asaya Fujita ◽  
...  
Keyword(s):  
Magnetic Transition ◽  
Itinerant Electron ◽  
Thermally Induced ◽  
First Order

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.

Influence of the Ge distribution on the first order magnetic transition of the MnFe(P,Ge) magnetocaloric material

2018 ◽  
Vol 20 (26) ◽  
pp. 18117-18126 ◽  
Author(s):  
Zhen-Lu Zhang ◽  
Dan-Min Liu ◽  
Wei-Qiang Xiao ◽  
Hui Li ◽  
Shao-Bo Wang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Magnetic Transition ◽  
First Order

MnFe(P,Ge) is a promising magnetocaloric material for potential refrigeration applications near room temperature.

First-order magnetic transition induced by structural transition in hexagonal structure

2020 ◽  
Vol 494 ◽  
pp. 165821
Author(s):  
Chaocheng Liu ◽  
Xucai Kan ◽  
Xiansong Liu ◽  
Shuangjiu Feng ◽  
Jiyu Hu ◽  
...  
Keyword(s):  
Structural Transition ◽  
Magnetic Transition ◽  
Hexagonal Structure ◽  
First Order

What causes the first-order magnetic transition in solid 3He?

Physica B+C ◽  
1981 ◽  
Vol 108 (1-3) ◽  
pp. 849-850 ◽  
Author(s):  
P. Bak ◽  
F.B. Rasmussen
Keyword(s):  
Magnetic Transition ◽  
First Order ◽  
Solid 3He
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