Title :
Properties of Amorphous Magnetic Oxides Reduced by H2
Author :
Sugimoto, M. ; Hiratsuka, N. ; Naya, K. ; Takahashi, T.
Author_Institution :
Saitama University, Faculty of Engineering, Urawa.
fDate :
5/1/1987 12:00:00 AM
Abstract :
The characteristics of Fe3O4-CaO-SiO2 amorphous magnetic oxides when heat-treated in an H2 atmosphere are discussed. The magnetization rose with the heat-treatment temperature and peaked at 60 emu/g at 900°C, with the CaSiO3 phase precipitating in the neighborhood of 650°C. This magnetization increase was proportional to the applied magnetic field increase. The failure of film samples to saturate completely even at 7 kOe indicated small precipitated Fe particles and high resistivity which were measured in some samples at 0.05 ~ 0.2 ¿m and 4 × 106 ¿-cm, respectively.
Keywords :
Amorphous magnetic materials; Amorphous materials; Atmosphere; Conductivity; Iron; Magnetic field measurement; Magnetic films; Magnetic properties; Saturation magnetization; Temperature;
Journal_Title :
Magnetics in Japan, IEEE Translation Journal on
DOI :
10.1109/TJMJ.1987.4549494
