High-temperature magnetic properties of mechanically alloyed SmCo5 and YCo5 magnets

I. A. Al-Omari; R. Skomski; R. A. Thomas; D. Leslie-Pelecky; D. J. Sellmyer

doi:10.1109/20.951226

High-temperature magnetic properties of mechanically alloyed SmCo₅ and YCo₅ magnets

I. A. Al-Omari^*, R. Skomski, R. A. Thomas, D. Leslie-Pelecky, D. J. Sellmyer

^*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلة › Conference article › مراجعة النظراء

37 اقتباسات (Scopus)

ملخص

The high-temperature coercivity of mechanically alloyed and subsequently annealed RCo₅ (R = Sm and Y) is studied. The annealed materials have the hexagonal CaCu₅ structure with 2:17 (or 1:7) regions as a minor phase, High-temperature magnetic measurements show that the coercivities of materials decrease with increasing temperature from room-temperature to 873 K, but that the temperature coefficient of the coercivity of YCo₅ is much smaller than that of SmCo₅. This behavior is explained in terms of the intrinsic temperature variation of the magnetocrystalline anisotropy.

اللغة الأصلية	English
الصفحات (من إلى)	2534-2536
عدد الصفحات	3
دورية	IEEE Transactions on Magnetics
مستوى الصوت	37
رقم الإصدار	4 I
المعرِّفات الرقمية للأشياء	https://doi.org/10.1109/20.951226
حالة النشر	Published - يوليو 2001
منشور خارجيًا	نعم
الحدث	8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States المدة: يناير ٧ ٢٠٠١ → يناير ١١ ٢٠٠١

ASJC Scopus subject areas

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الوصول إلى المستند

10.1109/20.951226

الملفات والروابط الأخرى

قم بذكر هذا

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title = "High-temperature magnetic properties of mechanically alloyed SmCo5 and YCo5 magnets",

abstract = "The high-temperature coercivity of mechanically alloyed and subsequently annealed RCo5 (R = Sm and Y) is studied. The annealed materials have the hexagonal CaCu5 structure with 2:17 (or 1:7) regions as a minor phase, High-temperature magnetic measurements show that the coercivities of materials decrease with increasing temperature from room-temperature to 873 K, but that the temperature coefficient of the coercivity of YCo5 is much smaller than that of SmCo5. This behavior is explained in terms of the intrinsic temperature variation of the magnetocrystalline anisotropy.",

keywords = "Anisotropy, Coercivity, Finite-temperature magnetism, Permanent magnets",

author = "Al-Omari, {I. A.} and R. Skomski and Thomas, {R. A.} and D. Leslie-Pelecky and Sellmyer, {D. J.}",

note = "Funding Information: Manuscript received October 12, 2000. This work was supported by ARO/DARPA and CMRA. A. Al-Omari is with the Department of Physics and Astronomy and the Center for Materials Research and Analysis, University of Nebraska, Lincoln, NE 68588. He is on leave from the Department of Applied Physical Sciences, Jordan University of Science and Technology, Irbid-Jordan. R. Skomski, R. A. Thomas, D. Leslie-Pelecky, and D. J. Sellmyer are with the Department of Physics and Astronomy and the Center for Materials Research and Analysis, University of Nebraska, Lincoln, NE 68588. Publisher Item Identifier S 0018-9464(01)06878-9.; 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) ; Conference date: 07-01-2001 Through 11-01-2001",

year = "2001",

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doi = "10.1109/20.951226",

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T1 - High-temperature magnetic properties of mechanically alloyed SmCo5 and YCo5 magnets

AU - Al-Omari, I. A.

AU - Skomski, R.

AU - Thomas, R. A.

AU - Leslie-Pelecky, D.

AU - Sellmyer, D. J.

N1 - Funding Information: Manuscript received October 12, 2000. This work was supported by ARO/DARPA and CMRA. A. Al-Omari is with the Department of Physics and Astronomy and the Center for Materials Research and Analysis, University of Nebraska, Lincoln, NE 68588. He is on leave from the Department of Applied Physical Sciences, Jordan University of Science and Technology, Irbid-Jordan. R. Skomski, R. A. Thomas, D. Leslie-Pelecky, and D. J. Sellmyer are with the Department of Physics and Astronomy and the Center for Materials Research and Analysis, University of Nebraska, Lincoln, NE 68588. Publisher Item Identifier S 0018-9464(01)06878-9.

PY - 2001/7

Y1 - 2001/7

N2 - The high-temperature coercivity of mechanically alloyed and subsequently annealed RCo5 (R = Sm and Y) is studied. The annealed materials have the hexagonal CaCu5 structure with 2:17 (or 1:7) regions as a minor phase, High-temperature magnetic measurements show that the coercivities of materials decrease with increasing temperature from room-temperature to 873 K, but that the temperature coefficient of the coercivity of YCo5 is much smaller than that of SmCo5. This behavior is explained in terms of the intrinsic temperature variation of the magnetocrystalline anisotropy.

AB - The high-temperature coercivity of mechanically alloyed and subsequently annealed RCo5 (R = Sm and Y) is studied. The annealed materials have the hexagonal CaCu5 structure with 2:17 (or 1:7) regions as a minor phase, High-temperature magnetic measurements show that the coercivities of materials decrease with increasing temperature from room-temperature to 873 K, but that the temperature coefficient of the coercivity of YCo5 is much smaller than that of SmCo5. This behavior is explained in terms of the intrinsic temperature variation of the magnetocrystalline anisotropy.

KW - Anisotropy

KW - Coercivity

KW - Finite-temperature magnetism

KW - Permanent magnets

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4 I

T2 - 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag)

Y2 - 7 January 2001 through 11 January 2001

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