Electroless plating Ni-P coatings on La(Fe, Si)(13) hydride bulks for room-temperature magnetic-refrigeration application

doi:10.1016/j.jmmm.2020.167685

CORC > 金属研究所 > 中国科学院金属研究所

	Electroless plating Ni-P coatings on La(Fe, Si)(13) hydride bulks for room-temperature magnetic-refrigeration application
	Sun, Naikun 2; Zhao, Xinguo 3; Song, Yingwei 4; Liu, Runqing 1; Guo, Jie 3; Zhang, Yang 2; Huang, Jiaohong 5; Zhang, Zhidong 3
刊名	JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
	2021-05-01
卷号	525 页码:8
关键词	Ni-P coatings Room-temperature magnetic refrigeration Corrosion protection High-hydrogen-pressure sintering
ISSN号	0304-8853
DOI	10.1016/j.jmmm.2020.167685
通讯作者	Sun, Naikun(naikunsun@163.com) ; Zhao, Xinguo(xgzhao@imr.ac.cn)
英文摘要	La(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.
资助项目	National Natural Science Foundation of China[51771197] ; Liaoning innovation team support[LT2019012]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000615969100016
资助机构	National Natural Science Foundation of China ; Liaoning innovation team support
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160746]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sun, Naikun; Zhao, Xinguo
作者单位	1.Shenyang Ligong Univ, Sch Mat Sci & Technol, Shenyang 110159, Peoples R China 2.Shenyang Ligong Univ, Sch Sci, Shenyang 110159, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 5.Baotou Res Inst Rare Earths, State Key Lab Baiyunobo Rare Earth Resource Res &, Baotou 014030, Peoples R China
推荐引用方式 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.