{"corpus_id":214386218,"paper_sha":"2dfba94ddb06ed7bca5bfa12d17f6743dda0ae16","doi":"10.1016/j.jallcom.2020.154265","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":3007180759,"dblp_id":null,"acl_id":null,"title":"Tuning the operation temperature window of the elastocaloric effect in Cu–Al–Mn shape memory alloys by composition design","year":2020,"publication_date":"2020-07-05","venue":"","journal":{"name":"Journal of Alloys and Compounds","pages":"154265","volume":"828"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Materials Science"],"reference_count":30,"citation_count":60,"influential_citation_count":1,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Abstract The operation temperature window is one of the key parameters for the refrigeration application of elastocaloric materials. In the present work, we investigated the relationship between the operation temperature window of the elastocaloric effect and composition in Cu–Al–Mn shape memory alloys (SMAs) by clarifying the effects of composition on the transformation temperature, martensite transformation-dislocation slip transition temperature (TMT-DS), and adiabatic temperature change (ΔTexp). A high ΔTexp of 17.0 K, a high transformation entropy change (ΔSexp) of 21.60 J/kg K and a wide temperature window over 262 K were measured in columnar-grained (CG) Cu–Al–Mn SMAs. A stable refrigeration capability of ∼3500 J/kg and an adjustable temperature window covering a very large range of 50–450 K were also found in CG Cu–Al–Mn SMAs, which ensures potential for solid-state refrigeration applications and provides references for device design.","claims":[{"public_id":"cl_95d6d01b96da985724239def720ad5f1","status":"active","text":"Columnar-grained Cu–Al–Mn shape memory alloys exhibit a high adiabatic temperature change of 17.0 K, a high transformation entropy change of 21.60 J/kg K, and a wide operation temperature window exceeding 262 K.","confidence":0.9,"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ 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