Preliminary communication

Fractional gas analysis procedure for determining the contents of oxide and nitride phases in ALNICO alloys

K. Grigorovich ; Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
G. Burkhanov ; Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
S. Shibaev ; Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
A. Dalmatov ; Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia
I. Belyaev ; JSC “NPO Magneton”, Vladimir, Russia
N. Kolchugina ; Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia

Abstract

Fractional gas analysis procedure for estimating the contents of oxide and nitride inclusions in Alnico alloys produced from wastes of production is developed. The effect of the temperature and time of melt holding before pouring on the content of impurity oxide and nitride inclusions is considered. The content of SiO₂ inclusions in Alnico mainly depends on the holding time before pouring and decreases with increasing holding time, whereas the content of Al₂O₃ inclusions decreases with increasing both temperature and time of holding. The content of TiN inclusions decreases with increasing holding time. As the holding temperature increases, the content of nitride inclusions decreases only with increasing holding time.

Keywords

Alnico; fractional gas analysis; oxide inclusions; nitride inclusions; hard magnetic materials

Hrčak ID:

35475

URI

https://hrcak.srce.hr/35475

Publication date:

1.7.2009.

Article data in other languages: croatian

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