Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 윤종승 | - |
dc.date.accessioned | 2022-10-05T01:53:02Z | - |
dc.date.available | 2022-10-05T01:53:02Z | - |
dc.date.issued | 2020-12 | - |
dc.identifier.citation | JOURNAL OF APPLIED PHYSICS, v. 128, no. 22, article no. 223903, page. 1-9 | en_US |
dc.identifier.issn | 0021-8979; 1089-7550 | en_US |
dc.identifier.uri | https://aip.scitation.org/doi/10.1063/5.0033151 | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/175031 | - |
dc.description.abstract | Mn5-xNixGe3 (x=0, 0.025, 0.075, 0.1, 0.15, 0.2, 0.25, and 0.4) alloys were synthesized to demonstrate that the magnetocaloric (MCE) properties [Curie temperature, magnetic entropy change (Delta S-M), and adiabatic temperature change (Delta T-ad)] can be fine-tuned by changing the Ni fraction. An active magnetic regenerative (AMR) cycle testbed was built in-house to investigate the suitability of Mn5-xNixGe3 as a solid magnetic refrigerant operating at room temperature and as a composite refrigerant for an AMR cycle. The maximum temperature difference between the hot and cold ends, Delta T-span, measured from the AMR testbed was 7.5K and 5.6K for Gd and Mn5Ge3, respectively. The Delta T-span values were reasonable considering the inferior Delta S-M and Delta T-ad for Mn5Ge3 compared to those of Gd. A two-layer composite refrigerant consisting of Mn5Ge3 and Mn4.975Ni0.025Ge3 produced Delta T-span of 6.3K, which is 13% higher than that of the single Mn5Ge3 refrigerant, indicating the effectiveness of a multi-layer refrigerant selected to closely match the temperature gradient in an AMR cycle. This work highlights the importance of tailoring the MCE properties as required to build a composite refrigerant. | en_US |
dc.description.sponsorship | This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education (No. 2018R1D1A1B07047232). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER INST PHYSICS | en_US |
dc.title | Mn5-xGe3Nix refrigerant for active magnetic refrigeration | en_US |
dc.type | Article | en_US |
dc.relation.no | 22 | - |
dc.relation.volume | 128 | - |
dc.identifier.doi | 10.1063/5.0033151 | en_US |
dc.relation.page | 1-9 | - |
dc.relation.journal | JOURNAL OF APPLIED PHYSICS | - |
dc.contributor.googleauthor | Kang, Ki Hoon | - |
dc.contributor.googleauthor | Kim, Eun Jeong | - |
dc.contributor.googleauthor | Kim, Juhwan | - |
dc.contributor.googleauthor | Yoon, Chong Seung | - |
dc.relation.code | 2020052605 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | SCHOOL OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | csyoon | - |
dc.identifier.orcid | https://orcid.org/0000-0001-6164-3331 | - |
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