Elastocaloric effect associated with the martensitic transition in shape-memory alloys

被引：489

作者：

Bonnot, Erell ^{[1
,2
]}

Romero, Ricardo ^{[1
,2
]}

Manosa, Lluis ^{[1
,2
]}

Vives, Eduard ^{[1
,2
]}

Planes, Antoni ^{[1
,2
]}

机构：

[1] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

[2] Univ Ctr Prov Buenos Aires, IFIMAT, RA-7000 Tandil, Argentina

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.100.125901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The elastocaloric effect in the vicinity of the martensitic transition of a Cu-Zn-Al single crystal has been studied by inducing the transition by strain or stress measurements. While transition trajectories show significant differences, the entropy change associated with the whole transformation (Delta S-t) is coincident in both kinds of experiments since entropy production is small compared to Delta S-t. The values agree with estimations based on the Clausius-Clapeyron equation. The possibility of using these materials for mechanical refrigeration is also discussed.

引用

页数：4

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