Magnetic properties of shock-synthesized and furnace-reacted zinc ferrite
The static magnetic properties of spinel structure zinc ferrite are compared for products from shock synthesis and conventional isothermal reaction using a stoichiometric mixture of zinc oxide and ferric oxide powders. The high-pressure shock-wave loading produces a ferrimagnetic material with a substantial saturation magnetization, while the furnace reaction product is paramagnetic at room temperature. Since stoichiometric zinc ferrite is paramagnetic, these results indicate that a zinc-deficient ferrite is formed by shock processing in contrast to a nearly stoichiometric compound obtained by heating in air. X-ray diffraction data confirm that less zinc oxide is consumed than ferric oxide during shock loading.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5425464
- Report Number(s):
- SAND-85-0317C; CONF-850736-25; ON: DE85014840
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
EXPLOSIVE FORMING
FABRICATION
FERRIMAGNETIC MATERIALS
FERRITES
FERROMAGNETIC MATERIALS
IRON COMPOUNDS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MAGNETIC MATERIALS
MAGNETIZATION
MATERIALS
MATERIALS WORKING
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SPINELS
TRANSITION ELEMENT COMPOUNDS
VERY HIGH PRESSURE
ZINC COMPOUNDS