YCO
In accordance with one aspect of the presently disclosed inventive concepts, a magnet includes a material having a chemical formula: YFe 3 (Ni 1-x Co x ) 2 , where x is greater than 0 and x is less than 1.
1. A magnet, comprising:
a material having a chemical formula: YFe 3 (Ni 1-x Co x ) 2 , wherein x is greater than 0 and x is less than 1, wherein a maximum energy product of the material is greater than about 351 kJ/m 3 .
2. A magnet as recited in claim 1 , wherein x is greater than 1−x.
3. A magnet as recited in claim 1 , wherein x is less than 1−x.
4. A magnet as recited in claim 1 , wherein x is about equal to 1−x.
5. A magnet as recited in claim 1 , wherein the magnet is a permanent magnet.
6. A magnet as recited in claim 1 , wherein a spin orientation of the Y atom is antiparallel to a spin orientation of the Fe, Ni, and Co atoms.
7. A magnet as recited in claim 1 , wherein a magnetocrystalline anisotropy energy of the material is about twice a magnetocrystalline anisotropy energy of Nd 2 Fe 14 B magnet.
8. A magnet as recited in claim 1 , wherein a magnetocrystalline anisotropy energy of the material is greater than about 10 MJ/m 3 .
9. A magnet as recited in claim 1 , wherein a Curie Temperature of the material is about equal to a Curie Temperature of YCo 5 .
10. A magnet as recited in claim 1 , wherein a Curie Temperature of the material is greater than about 1000 K.
11. A magnet as recited in claim 1 , wherein the amount of Co in the magnet is up to 80 at. % less Co than the amount of Co in YCo 5 .
12. A magnet, comprising:
a material having a chemical formula: YFe 3 (Ni 1-x Co x ) 2 , wherein x is greater than 0 and x is less than 1,
wherein the material has a CaCu 5 -type crystal structure,
wherein the Fe atoms are distributed in a plurality of transition metal 3g nonequivalent atomic sites,
wherein a maximum energy product of the material is greater than about 351 kJ/m 3 .
13. A magnet as recited in claim 12 , wherein the Ni atoms and the Co atoms are distributed in a plurality of transition metal 2c nonequivalent atomic sites.
14. A magnet, comprising:
a material having a chemical formula: YFe 3 (Ni 1-x Co x ) 2 , wherein x is greater than 0 and x is less than 1, wherein the material has a CaCu 5 -type crystal structure,
wherein the Ni atoms and the Co atoms are distributed in a plurality of transition metal 2c nonequivalent atomic sites,
wherein a maximum energy product of the material is greater than about 351 kJ/m 3 .
15. A magnet as recited in claim 14 , wherein x is about equal to 1−x.
16. A magnet as recited in claim 14 , wherein the Fe atoms are distributed in a plurality of transition metal 3g nonequivalent atomic sites, wherein a maximum energy product of the material is greater than about 351 kJ/m 3 .
17. A magnet as recited in claim 14 , wherein x is greater than 1−x.