Title :
Property Channges of Fe-N Prepared by Reduction-Sintering Method with Heat Treatment
Author :
Sasaki, T. ; Takada, S.
Author_Institution :
Faculty of Engng., Gifu Univ.
Abstract :
While much is known about the large magnetic moment of Fe8 N thin films, little work has been done on bulk FeN material. Bulk FeN was prepared by pressure-forming ¿-Fe2O3 powder, reduction in H2 and sintering at 700 to 800°C in NH3-H2, followed by gradual cooling or by quenching from different temperatures. It was found that under appropriate conditions (sintering temperature 700°C, PNH3 = 0.5), this reduction-sintering process can be used to obtain stable single-phase Fe4N. Further studies on quenching and other heat treatment are underway to produce Fe8N from this Fe4 N material.
Keywords :
Atmosphere; Cooling; Heat treatment; Hydrogen; Iron; Magnetic materials; Magnetic moments; Manufacturing; Powders; Temperature;
Journal_Title :
Magnetics in Japan, IEEE Translation Journal on
DOI :
10.1109/TJMJ.1985.4548959