Abstract
During oxidation of the aluminum- or chromium-substituted magnetites, (Fe 2+Fe 3+ 2− x M 3 f x)O 2− 4, with 0.4 < x < 1.8 in defect phase γ of the same spinel structure, the availability for oxidation of Fe 2+ ions in the tetrahedral sites (A sites) of the spinel structure is much less than that in octahedral sites (B sites) and in both cases depends on the extent of aluminum or chromium substitution. The influence of cation distribution in A and B sites on the oxidation temperature is shown directly by differential thermogravimetric analysis and by electrical conductivity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
