Magnetic and structural studies in Sm-Fe-Ti magnets

Y. Wang; G. C. Hadjipanayis; A. Kim; N. C. Liu; D. J. Sellmyer

doi:10.1063/1.344745

Magnetic and structural studies in Sm-Fe-Ti magnets

Y. Wang, G. C. Hadjipanayis, A. Kim, N. C. Liu, D. J. Sellmyer

Physics and Astronomy

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Abstract

The effects of vanadium substitution on the magnetic properties of Sm-Fe-Ti-V melt-spun ribbons and the magnetic properties and microstructure of sintered Sm-Fe-Ti based magnets are reported. The highest coercivity, H _c =10.65 kOe, was obtained in a heat-treated melt-spun Sm₈ Fe_75.5 Ga_0.5 Ti₈ V₈ alloy. This is the highest value of the coercivities reported in alloys with the ThMn ₁₂ -type structure. Bulk magnets were prepared by the usual powder metallurgy technique. However, their highest coercivity (∼2 kOe) was much less than that of the corresponding ribbons. The low coercivity of sintered magnets has been attributed to their nonuniform microstructure.

Original language	English (US)
Pages (from-to)	4954-4956
Number of pages	3
Journal	Journal of Applied Physics
Volume	67
Issue number	9
DOIs	https://doi.org/10.1063/1.344745
State	Published - 1990

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Magnetic and structural studies in Sm-Fe-Ti magnets",

abstract = "The effects of vanadium substitution on the magnetic properties of Sm-Fe-Ti-V melt-spun ribbons and the magnetic properties and microstructure of sintered Sm-Fe-Ti based magnets are reported. The highest coercivity, H c =10.65 kOe, was obtained in a heat-treated melt-spun Sm8 Fe75.5 Ga0.5 Ti8 V8 alloy. This is the highest value of the coercivities reported in alloys with the ThMn 12 -type structure. Bulk magnets were prepared by the usual powder metallurgy technique. However, their highest coercivity (∼2 kOe) was much less than that of the corresponding ribbons. The low coercivity of sintered magnets has been attributed to their nonuniform microstructure.",

author = "Y. Wang and Hadjipanayis, {G. C.} and A. Kim and Liu, {N. C.} and Sellmyer, {D. J.}",

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T1 - Magnetic and structural studies in Sm-Fe-Ti magnets

AU - Wang, Y.

AU - Hadjipanayis, G. C.

AU - Kim, A.

AU - Liu, N. C.

AU - Sellmyer, D. J.

PY - 1990

Y1 - 1990

N2 - The effects of vanadium substitution on the magnetic properties of Sm-Fe-Ti-V melt-spun ribbons and the magnetic properties and microstructure of sintered Sm-Fe-Ti based magnets are reported. The highest coercivity, H c =10.65 kOe, was obtained in a heat-treated melt-spun Sm8 Fe75.5 Ga0.5 Ti8 V8 alloy. This is the highest value of the coercivities reported in alloys with the ThMn 12 -type structure. Bulk magnets were prepared by the usual powder metallurgy technique. However, their highest coercivity (∼2 kOe) was much less than that of the corresponding ribbons. The low coercivity of sintered magnets has been attributed to their nonuniform microstructure.

AB - The effects of vanadium substitution on the magnetic properties of Sm-Fe-Ti-V melt-spun ribbons and the magnetic properties and microstructure of sintered Sm-Fe-Ti based magnets are reported. The highest coercivity, H c =10.65 kOe, was obtained in a heat-treated melt-spun Sm8 Fe75.5 Ga0.5 Ti8 V8 alloy. This is the highest value of the coercivities reported in alloys with the ThMn 12 -type structure. Bulk magnets were prepared by the usual powder metallurgy technique. However, their highest coercivity (∼2 kOe) was much less than that of the corresponding ribbons. The low coercivity of sintered magnets has been attributed to their nonuniform microstructure.

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Magnetic and structural studies in Sm-Fe-Ti magnets

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