Elastocaloric Effect
An alloy that undergoes a reversible temperature change of 31.5 Kelvin(K) when squeezed has been created by physicists in China, Spain and the US. Materials that exhibit such a “colossal elastocaloric effect” could be used to create new types of highly-efficient refrigeration systems.
Key Features
- Elastocaloric effect involves squeezing solid crystalline (or polycrystalline) materials and occurs when a material undergoes a transition in its crystal structure when it is squeezed.
- A material must undergo a large (about 2%) change in volume during the structural phase transition and the material must have mechanical properties that are compatible with being repeatedly squeezed ....
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