DocumentCode :
1055134
Title :
A new permanent magnet material: Modified Ca ferrite
Author :
Yamamoto, Hiroshi ; Kawaguchi, Toranosuke ; Nagakura, Mitsuru
Author_Institution :
Meiji University, Kawasaki, Japan.
Volume :
15
Issue :
4
fYear :
1979
fDate :
7/1/1979 12:00:00 AM
Firstpage :
1141
Lastpage :
1146
Abstract :
An experiment was carried out to investigate the preparation condition of anisotropic Ca system ferrite magnets with optimum magnetic and physical properties. Compositions were chosen according to the formula (CaO.nFe2 O3 )100-x (La2 O3 )x , where 
was varied between 0 and 4.0, and n between 5.5 and 6.25. The optimum condition of making magnets and some properties of a typical specimen are as follows. The preparation condition: composition (CaO.6Fe2 O3 )97 (La2 O3 )3 , semisintering condition 1250°C × 1 h in O2 gas, sintering condition 1275°C × 0.5 h in O2 gas. Magnetic properties: 
G, 4πIr = 4100 G,I HC = 2100 Oe,B HC = 2050 Oe, 
MG . Oe, Ku = 3.34 × 106erg/cc, HA = 20.5 kOe, 
emu/g, Tc = 446°C.
was varied between 0 and 4.0, and n between 5.5 and 6.25. The optimum condition of making magnets and some properties of a typical specimen are as follows. The preparation condition: composition (CaO.6Fe G, 4πIr = 4100 G, MG . Oe, Ku = 3.34 × 106erg/cc, H emu/g, Tc = 446°C.Keywords :
Ferrites; Permanent magnet materials; Anisotropic magnetoresistance; Ferrites; Magnetic anisotropy; Magnetic materials; Magnetic properties; Milling; Permanent magnets; Perpendicular magnetic anisotropy; Powders; Raw materials;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1979.1145876
Filename :
1145876
Link To Document :
