Title :
Influence of chemical composition on the crystalline morphologies of magnetite
Author :
Clark, Ted M. ; Evans, B.J.
Author_Institution :
Dept. of Chem., Michigan Univ., Ann Arbor, MI, USA
fDate :
9/1/1997 12:00:00 AM
Abstract :
Cubic and octahedral magnetite specimens from a variety of localities have been examined to ascertain the influence of chemical composition on their morphology. The presence of cations which favor occupancy of the A site in the magnetite spinel structure is shown to be significant in the formation of cubic magnetite at concentrations of x=0.02 in the formula ZnxFe3-xO4, with unusual order-disorder phenomena accompanying this change in habit
Keywords :
Mossbauer effect; chemical structure; crystal morphology; crystal structure; ferrites; minerals; order-disorder transformations; zinc compounds; 57Fe Mossbauer spectrum; A site; Fe3O4; Zn0.02Fe2.08O4; ZnxFe3-xO4; ZnFe2O4; cations; chemical composition; crystalline morphologies; cubic magnetite specimens; habit; magnetite; morphology; octahedral magnetite specimens; spinel structure; unusual order-disorder phenomena; Chemicals; Crystalline materials; Crystallization; Impurities; Magnetic analysis; Morphology; Scanning electron microscopy; Shape; Spectroscopy; Zinc;
Journal_Title :
Magnetics, IEEE Transactions on
