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Electroless plating Ni-P coatings on La(Fe, Si)(13) hydride bulks for room-temperature magnetic-refrigeration application
Sun, Naikun1; Zhao, Xinguo2; Song, Yingwei3; Liu, Runqing4; Guo, Jie2; Zhang, Yang1; Huang, Jiaohong5; Zhang, Zhidong2
Corresponding AuthorSun, Naikun(naikunsun@163.com) ; Zhao, Xinguo(xgzhao@imr.ac.cn)
2021-05-01
Source PublicationJOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN0304-8853
Volume525Pages:8
AbstractLa(Fe,Si)(13) based magnetocaloric alloys have been implemented as regenerators in room-temperature cooling systems in search for environmental-friendly alternatives to conventional vapour-compression refrigeration. Unfortunately, their corrosion resistance in water related transfer fluids has as yet been insufficient, although various attempts were made, including optimizing elemental compositions, customizing heat transfer fluids, and surface coating. This work presents a simple electroless plating strategy to deposit continuous Ni-P layers on the La0.7Ce0.3Fe0.45Mn0.2Si1.35 hydride thin-plates sintered under a high pressure, affording super corrosion protection and simultaneous improvement of heat transfer ability. Upon deposition of 2-6 mu m Ni-P layers possessing robust interfacial coupling with the substrate, a large magnetic entropy change of about 12 J/kg K under 0-2 T was retained at room temperature. More significantly, the charge transfer resistance in 3.5% NaCl solution was increased to 6-17 times and the corrosion current density was reduced to 5-7 times compared to the high-pressure sintered hydride bulk, accompanied by a simultaneous increase of thermal conductivity to about 2 times. The Ni-P layers consisting of columnar microstructure may facilitate relief of the local stress from the field-induced lattice expansion, thus improving cycling stability of the magnetic refrigerants.
KeywordNi-P coatings Room-temperature magnetic refrigeration Corrosion protection High-hydrogen-pressure sintering
Funding OrganizationNational Natural Science Foundation of China ; Liaoning innovation team support
DOI10.1016/j.jmmm.2020.167685
Indexed BySCI
Languageen
Funding ProjectNational Natural Science Foundation of China[51771197] ; Liaoning innovation team support[LT2019012]
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Condensed Matter
WOS IDWOS:000615969100016
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160747
Collection中国科学院金属研究所
Corresponding AuthorSun, Naikun; Zhao, Xinguo
Affiliation1.Shenyang Ligong Univ, Sch Sci, Shenyang 110159, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
4.Shenyang Ligong Univ, Sch Mat Sci & Technol, Shenyang 110159, Peoples R China
5.Baotou Res Inst Rare Earths, State Key Lab Baiyunobo Rare Earth Resource Res &, Baotou 014030, Peoples R China
Recommended Citation
GB/T 7714
Sun, Naikun,Zhao, Xinguo,Song, Yingwei,et al. Electroless plating Ni-P coatings on La(Fe, Si)(13) hydride bulks for room-temperature magnetic-refrigeration application[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2021,525:8.
APA Sun, Naikun.,Zhao, Xinguo.,Song, Yingwei.,Liu, Runqing.,Guo, Jie.,...&Zhang, Zhidong.(2021).Electroless plating Ni-P coatings on La(Fe, Si)(13) hydride bulks for room-temperature magnetic-refrigeration application.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,525,8.
MLA Sun, Naikun,et al."Electroless plating Ni-P coatings on La(Fe, Si)(13) hydride bulks for room-temperature magnetic-refrigeration application".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 525(2021):8.
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