Magnetic properties of Sm(Fe,Ti)7CxNδ/α-Fe nanocomposites

Dian yu Geng; Zhi dong Zhang; Wei Liu; Xin guo Zhao; Cai yin You; Ming hui Yu; Qun feng Xiao; R. Grössinger; J. P. Liu; D. J. Sellmyer

doi:10.1016/S0925-8388(01)01673-5

Magnetic properties of Sm(Fe,Ti)₇C_xN_δ/α-Fe nanocomposites

Dian yu Geng, Zhi dong Zhang, Wei Liu, Xin guo Zhao, Cai yin You, Ming hui Yu, Qun feng Xiao, R. Grössinger, J. P. Liu, D. J. Sellmyer

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The structure, phase transformation and magnetic properties of Sm_yFe_93-y-zTi_zC₇ N_δ (y=8, 10, 12, 14; z=0, 3, 5, 7) alloys prepared by mechanical alloying (MA) and nitrogenation have been studied. The main phase in the alloys transforms from Nd₂Fe₁₄B-type to TbCu₇-type when the Ti content is increased. The magnetic properties of Sm_yFe_93-y-zTi_zC₇ alloys are improved by nitriding, which is sensitive to the nitriding temperature. The hard magnetic properties of the MA Sm_yFe_93-y-zTi_zC₇ N_δ alloys are better than those of the carbon-free counterparts due to the formation of Sm(Fe,Ti)₇C_xN_δ/α-Fe nanocomposite. The Sm₁₂Fe₇₄Ti₇C₇ alloy, annealed at 850°C for 30 min and nitrided at 400°C for 5 h, has the magnetic properties _iH_c=38.5 kOe and (BH)_max=8.84 MGOe. The re-milling process before nitrogenation is beneficial to achieving the magnetic properties of _iH_c=6.87 kOe and (BH)_max=13.5 MGOe for Sm₁₀Fe₇₆Ti₇C₇ N_δ alloys.

Original language	English (US)
Pages (from-to)	259-263
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	329
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(01)01673-5
State	Published - Nov 14 2001

Keywords

Interstitial alloys
Mechanical alloying
Nanostructured materials
Permanent magnets
Rare earth compounds

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0925-8388(01)01673-5

Cite this

@article{399d403b43b34d568d57cd67b5c6f55d,

title = "Magnetic properties of Sm(Fe,Ti)7CxNδ/α-Fe nanocomposites",

abstract = "The structure, phase transformation and magnetic properties of SmyFe93-y-zTizC7 Nδ (y=8, 10, 12, 14; z=0, 3, 5, 7) alloys prepared by mechanical alloying (MA) and nitrogenation have been studied. The main phase in the alloys transforms from Nd2Fe14B-type to TbCu7-type when the Ti content is increased. The magnetic properties of SmyFe93-y-zTizC7 alloys are improved by nitriding, which is sensitive to the nitriding temperature. The hard magnetic properties of the MA SmyFe93-y-zTizC7 Nδ alloys are better than those of the carbon-free counterparts due to the formation of Sm(Fe,Ti)7CxNδ/α-Fe nanocomposite. The Sm12Fe74Ti7C7 alloy, annealed at 850°C for 30 min and nitrided at 400°C for 5 h, has the magnetic properties iHc=38.5 kOe and (BH)max=8.84 MGOe. The re-milling process before nitrogenation is beneficial to achieving the magnetic properties of iHc=6.87 kOe and (BH)max=13.5 MGOe for Sm10Fe76Ti7C7 Nδ alloys.",

keywords = "Interstitial alloys, Mechanical alloying, Nanostructured materials, Permanent magnets, Rare earth compounds",

author = "Geng, {Dian yu} and Zhang, {Zhi dong} and Wei Liu and Zhao, {Xin guo} and You, {Cai yin} and Yu, {Ming hui} and Xiao, {Qun feng} and R. Gr{\"o}ssinger and Liu, {J. P.} and Sellmyer, {D. J.}",

note = "Funding Information: This work has been supported by the National Natural Sciences Foundation of China under grant no. 59725103 and 59831010, by the Science and Technology Commissions of Shenyang and Liaoning and by the National Science Foundation of the United States under grant no. 9812082.",

year = "2001",

month = nov,

day = "14",

doi = "10.1016/S0925-8388(01)01673-5",

language = "English (US)",

volume = "329",

pages = "259--263",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Magnetic properties of Sm(Fe,Ti)7CxNδ/α-Fe nanocomposites

AU - Geng, Dian yu

AU - Zhang, Zhi dong

AU - Liu, Wei

AU - Zhao, Xin guo

AU - You, Cai yin

AU - Yu, Ming hui

AU - Xiao, Qun feng

AU - Grössinger, R.

AU - Liu, J. P.

AU - Sellmyer, D. J.

N1 - Funding Information: This work has been supported by the National Natural Sciences Foundation of China under grant no. 59725103 and 59831010, by the Science and Technology Commissions of Shenyang and Liaoning and by the National Science Foundation of the United States under grant no. 9812082.

PY - 2001/11/14

Y1 - 2001/11/14

N2 - The structure, phase transformation and magnetic properties of SmyFe93-y-zTizC7 Nδ (y=8, 10, 12, 14; z=0, 3, 5, 7) alloys prepared by mechanical alloying (MA) and nitrogenation have been studied. The main phase in the alloys transforms from Nd2Fe14B-type to TbCu7-type when the Ti content is increased. The magnetic properties of SmyFe93-y-zTizC7 alloys are improved by nitriding, which is sensitive to the nitriding temperature. The hard magnetic properties of the MA SmyFe93-y-zTizC7 Nδ alloys are better than those of the carbon-free counterparts due to the formation of Sm(Fe,Ti)7CxNδ/α-Fe nanocomposite. The Sm12Fe74Ti7C7 alloy, annealed at 850°C for 30 min and nitrided at 400°C for 5 h, has the magnetic properties iHc=38.5 kOe and (BH)max=8.84 MGOe. The re-milling process before nitrogenation is beneficial to achieving the magnetic properties of iHc=6.87 kOe and (BH)max=13.5 MGOe for Sm10Fe76Ti7C7 Nδ alloys.

AB - The structure, phase transformation and magnetic properties of SmyFe93-y-zTizC7 Nδ (y=8, 10, 12, 14; z=0, 3, 5, 7) alloys prepared by mechanical alloying (MA) and nitrogenation have been studied. The main phase in the alloys transforms from Nd2Fe14B-type to TbCu7-type when the Ti content is increased. The magnetic properties of SmyFe93-y-zTizC7 alloys are improved by nitriding, which is sensitive to the nitriding temperature. The hard magnetic properties of the MA SmyFe93-y-zTizC7 Nδ alloys are better than those of the carbon-free counterparts due to the formation of Sm(Fe,Ti)7CxNδ/α-Fe nanocomposite. The Sm12Fe74Ti7C7 alloy, annealed at 850°C for 30 min and nitrided at 400°C for 5 h, has the magnetic properties iHc=38.5 kOe and (BH)max=8.84 MGOe. The re-milling process before nitrogenation is beneficial to achieving the magnetic properties of iHc=6.87 kOe and (BH)max=13.5 MGOe for Sm10Fe76Ti7C7 Nδ alloys.

KW - Interstitial alloys

KW - Mechanical alloying

KW - Nanostructured materials

KW - Permanent magnets

KW - Rare earth compounds

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U2 - 10.1016/S0925-8388(01)01673-5

DO - 10.1016/S0925-8388(01)01673-5

M3 - Article

AN - SCOPUS:0035860922

SN - 0925-8388

VL - 329

SP - 259

EP - 263

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -