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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.9
- 수록면
- 299 - 303 (5page)
- DOI
- 10.4283/JMAG.2023.28.3.299
이용수
초록· 키워드
오류제보하기
Large latent heat is produced in the stress-induced martensitic phase transition process of Ni-Mn-Ca-based materials, i.e., elastocaloric effect. That makes such materials show tremendous potential for solid-state refrigeration which is identified as one of the most promising non-vapor-compression cooling devices. However, the still low refrigeration ability of these materials restricts further commercially promoting of solid-state refrigeration. In this work, we adjusted the Co content to regulate the elastocaloric effect for the Ni<SUB>51.5</SUB>Mn<SUB>25</SUB>Ga<SUB>23</SUB>Co<SUB>0.5.</SUB> According to the results, the transformation strain and ratio of loading stress/transformation temperature (dσ/dT) were increased by replacing the Ni atoms with a little more Co, leading to an improvement of the stressinduced transformation entropy-change ΔSσ. As a result, a huge ΔSσ of 45.0 JKg<SUP>-1</SUP>K<SUP>-1</SUP> is achieved in Ni<SUB>50</SUB>Mn<SUB>25</SUB>-Ga<SUB>23</SUB>Co<SUB>1</SUB> alloy.
목차
1. Introduction
2. Experimental Section
3. Results and Discussion
4. Conclusions
References
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