Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 윤종승 | - |
dc.date.accessioned | 2019-12-02T20:44:19Z | - |
dc.date.available | 2019-12-02T20:44:19Z | - |
dc.date.issued | 2017-12 | - |
dc.identifier.citation | JOURNAL OF ALLOYS AND COMPOUNDS, v. 729, page. 603-606 | en_US |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.issn | 1873-4669 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/abs/pii/S0925838817332784?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/116521 | - |
dc.description.abstract | Magnetic field-induced adiabatic temperature change, Delta T-ad, measures the temperature gradient that enables a magnetic refrigerant to transfer heat from reservoirs. The Delta T-ad of Mn5Ge3 was evaluated by directly recording the temperature of a Mn5Ge3 sample while subjecting it to an external field. The peak Delta T-ad of 0.89 +/- 0.006 at 0.8 T for Mn5Ge3 at its Curie temperature was consistent with the value previously obtained from specific heat capacity measurements. In addition, the peak values of Delta T-ad for Mn4.75Co0.25Ge3 and Mn4.75Fe0.25Ge3 were measured to be 0.77 +/- 0.009 and 0.93 +/- 0.011, respectively, at 0.8 T near their respective Curie temperatures. Delta T-ad measurements under cyclic application of a 0.8 T field showed that the alloys, whose magnetocaloric effect stems from the second-order magnetic phase transition, exhibited no hysteresis in Delta T-ad and maintained their peak Delta T-ad within 1.3% under cyclic field. The Delta T-ad of sandwiched Mn4.75Co0.25Ge3 and Mn4.75Fe0.25Ge3 plates was also measured to demonstrate that a combination of the alloys can be used to form a graded regenerator for the active magnetic regenerator cycle. | en_US |
dc.description.sponsorship | This work was supported by the Human Resource Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resources by the Ministry of Trade, Industry, & Energy, Republic of Korea (No. 20134030200360). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | ELSEVIER SCIENCE SA | en_US |
dc.subject | Magnetocaloric effect | en_US |
dc.subject | Adiabatic temperature change | en_US |
dc.subject | Direct measurement | en_US |
dc.subject | Mn5Ge3 | en_US |
dc.title | Direct measurement of the magnetocaloric effect (Delta T-ad) of Mn5-x (Fe, Co)(x)Ge-3 | en_US |
dc.type | Article | en_US |
dc.relation.volume | 729 | - |
dc.identifier.doi | 10.1016/j.jallcom.2017.09.228 | - |
dc.relation.page | 603-606 | - |
dc.relation.journal | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.contributor.googleauthor | Kang, Ki Hoon | - |
dc.contributor.googleauthor | Kim, Ju Hwan | - |
dc.contributor.googleauthor | Kim, J. W. | - |
dc.contributor.googleauthor | Chung, K. C. | - |
dc.contributor.googleauthor | Yoon, Chong Seung | - |
dc.relation.code | 2017003338 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | csyoon | - |
dc.identifier.orcid | http://orcid.org/0000-0001-6164-3331 | - |
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