Enhanced barocaloric effect for Pd–In–Fe shape memory alloys with hydrostatic-pressure training

2020 ◽  
Vol 127 (5) ◽  
pp. 055109
Author(s):  
Yanfeng Liu ◽  
Qi Shen ◽  
Zhiyang Wei ◽  
Wen Sun ◽  
Fenghua Chen ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Shape Memory Alloys ◽  
Shape Memory

scholarly journals Mechanocaloric effects in shape memory alloys

2016 ◽  
Vol 374 (2074) ◽  
pp. 20150310 ◽  
Author(s):  
Lluís Mañosa ◽  
Antoni Planes
Keyword(s):  
Hydrostatic Pressure ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Lattice Distortion ◽  
Pure Shear ◽  
Uniaxial Stress ◽  
Martensitic Transition ◽  
Critical Survey ◽  
Magnetic Alloys ◽  
Ferroic Materials

Shape memory alloys (SMA) are a class of ferroic materials which undergo a structural (martensitic) transition where the associated ferroic property is a lattice distortion (strain). The sensitiveness of the transition to the conjugated external field (stress), together with the latent heat of the transition, gives rise to giant mechanocaloric effects. In non-magnetic SMA, the lattice distortion is mostly described by a pure shear and the martensitic transition in this family of alloys is strongly affected by uniaxial stress, whereas it is basically insensitive to hydrostatic pressure. As a result, non-magnetic alloys exhibit giant elastocaloric effects but negligible barocaloric effects. By contrast, in a number of magnetic SMA, the lattice distortion at the martensitic transition involves a volume change in addition to the shear strain. Those alloys are affected by both uniaxial stress and hydrostatic pressure and they exhibit giant elastocaloric and barocaloric effects. The paper aims at providing a critical survey of available experimental data on elastocaloric and barocaloric effects in magnetic and non-magnetic SMA. This article is part of the themed issue ‘Taking the temperature of phase transitions in cool materials’.

scholarly journals Martensitic Transformation in Shape Memory Alloys under Magnetic Field and Hydrostatic Pressure

2002 ◽  
Vol 43 (5) ◽  
pp. 887-892 ◽  
Author(s):  
Tomoyuki Kakeshita ◽  
Takashi Fukuda ◽  
Tatsuaki Sakamoto ◽  
Tetsuya Takeuchi ◽  
Koichi Kindo ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Hydrostatic Pressure ◽  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory

scholarly journals Effect of Hydrostatic Pressure on Martensitic Transformations in Cu–Al–Ni Shape Memory Alloys

1988 ◽  
Vol 29 (10) ◽  
pp. 781-789 ◽  
Author(s):  
Tomoyuki Kakeshita ◽  
Yoshihito Yoshimura ◽  
Ken’ichi Shimizu ◽  
Shoichi Endo ◽  
Yuichi Akahama ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Martensitic Transformations ◽  
Effect Of Hydrostatic Pressure

Atomic Order and Martensitic Transformation in Cu-Al-Be Shape Memory Alloys

1995 ◽  
Vol 05 (C8) ◽  
pp. C8-973-C8-978
Author(s):  
M. Jurado ◽  
Ll. Mañosa ◽  
A. González-Comas ◽  
C. Stassis ◽  
A. Planes
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Atomic Order
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