Abstract
The high-temperature coercivity of mechanically alloyed and subsequently annealed RCo 5 (R = Sm and Y) is studied. The annealed materials have the hexagonal CaCu 5 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 YCo 5 is much smaller than that of SmCo 5. This behavior is explained in terms of the intrinsic temperature variation of the magnetocrystalline anisotropy.
| Original language | English |
|---|---|
| Pages (from-to) | 2534-2536 |
| Number of pages | 3 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 37 |
| Issue number | 4 I |
| DOIs | |
| Publication status | Published - Jul 2001 |
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Keywords
- Anisotropy
- Coercivity
- Finite-temperature magnetism
- Permanent magnets
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
Cite this
High-temperature magnetic properties of mechanically alloyed SmCo 5 and YCo 5 magnets. / Al-Omari, I. A.; Skomski, R.; Thomas, R. A.; Leslie-Pelecky, D.; Sellmyer, D. J.
In: IEEE Transactions on Magnetics, Vol. 37, No. 4 I, 07.2001, p. 2534-2536.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High-temperature magnetic properties of mechanically alloyed SmCo 5 and YCo 5 magnets
AU - Al-Omari, I. A.
AU - Skomski, R.
AU - Thomas, R. A.
AU - Leslie-Pelecky, D.
AU - Sellmyer, D. J.
PY - 2001/7
Y1 - 2001/7
N2 - The high-temperature coercivity of mechanically alloyed and subsequently annealed RCo 5 (R = Sm and Y) is studied. The annealed materials have the hexagonal CaCu 5 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 YCo 5 is much smaller than that of SmCo 5. 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 RCo 5 (R = Sm and Y) is studied. The annealed materials have the hexagonal CaCu 5 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 YCo 5 is much smaller than that of SmCo 5. 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
UR - http://www.scopus.com/inward/record.url?scp=0035386297&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035386297&partnerID=8YFLogxK
U2 - 10.1109/20.951226
DO - 10.1109/20.951226
M3 - Article
VL - 37
SP - 2534
EP - 2536
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 4 I
ER -