Nonstoichiometry, cation distribution, and electrical properties in Fe3O4‒CoFe2O4 at high temperature

D. S. Erickson; T. O. Mason

doi:10.1016/0022-4596(85)90348-2

Nonstoichiometry, cation distribution, and electrical properties in Fe3O4‒CoFe2O4 at high temperature

D. S. Erickson, T. O. Mason^*

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

Cation distributions in the system Fe₃O₄{single bond}CoFe₂O₄ from 600 to 1300°C were calculated from high-temperature thermopower measurements on oxygen-stoichiometric specimens. Behavior is virtually identical to that in the Fe₃O₄{single bond}MgFe₂O₄ system. Conductivity inCo_xFe_3-xO₄ (x < 1) obeys the relationshipσ = [d e / (d + e)] T^{- 1} exp [14.3 - 1475 T^{- 1} (1 + 1.189 x²)],, whered ande are the octahedral Fe²⁺ and Fe³⁺ occupancies, respectively.

Original language	English (US)
Pages (from-to)	42-53
Number of pages	12
Journal	Journal of Solid State Chemistry
Volume	59
Issue number	1
DOIs	https://doi.org/10.1016/0022-4596(85)90348-2
State	Published - Aug 1985

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/0022-4596(85)90348-2

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title = "Nonstoichiometry, cation distribution, and electrical properties in Fe3O4‒CoFe2O4 at high temperature",

abstract = "Cation distributions in the system Fe3O4{single bond}CoFe2O4 from 600 to 1300°C were calculated from high-temperature thermopower measurements on oxygen-stoichiometric specimens. Behavior is virtually identical to that in the Fe3O4{single bond}MgFe2O4 system. Conductivity inCoxFe3-xO4 (x < 1) obeys the relationshipσ = [d e / (d + e)] T- 1 exp [14.3 - 1475 T- 1 (1 + 1.189 x2)],, whered ande are the octahedral Fe2+ and Fe3+ occupancies, respectively.",

author = "Erickson, {D. S.} and Mason, {T. O.}",

note = "Funding Information: The authors gratefully acknowledget he support of the National Science Foundation under Grant DMR-8106492S. pecimens were prepared in the Ceramics Facility of Northwestern University{\textquoteright}s Materials Re-searchC enter, supportedi n part under the NSF-MRL program( Grant DMR82-16972)T. he authorsa re grateful to S. E. Dorris for helpful discussions.",

year = "1985",

month = aug,

doi = "10.1016/0022-4596(85)90348-2",

language = "English (US)",

volume = "59",

pages = "42--53",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "1",

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TY - JOUR

T1 - Nonstoichiometry, cation distribution, and electrical properties in Fe3O4‒CoFe2O4 at high temperature

AU - Erickson, D. S.

AU - Mason, T. O.

N1 - Funding Information: The authors gratefully acknowledget he support of the National Science Foundation under Grant DMR-8106492S. pecimens were prepared in the Ceramics Facility of Northwestern University’s Materials Re-searchC enter, supportedi n part under the NSF-MRL program( Grant DMR82-16972)T. he authorsa re grateful to S. E. Dorris for helpful discussions.

PY - 1985/8

Y1 - 1985/8

N2 - Cation distributions in the system Fe3O4{single bond}CoFe2O4 from 600 to 1300°C were calculated from high-temperature thermopower measurements on oxygen-stoichiometric specimens. Behavior is virtually identical to that in the Fe3O4{single bond}MgFe2O4 system. Conductivity inCoxFe3-xO4 (x < 1) obeys the relationshipσ = [d e / (d + e)] T- 1 exp [14.3 - 1475 T- 1 (1 + 1.189 x2)],, whered ande are the octahedral Fe2+ and Fe3+ occupancies, respectively.

AB - Cation distributions in the system Fe3O4{single bond}CoFe2O4 from 600 to 1300°C were calculated from high-temperature thermopower measurements on oxygen-stoichiometric specimens. Behavior is virtually identical to that in the Fe3O4{single bond}MgFe2O4 system. Conductivity inCoxFe3-xO4 (x < 1) obeys the relationshipσ = [d e / (d + e)] T- 1 exp [14.3 - 1475 T- 1 (1 + 1.189 x2)],, whered ande are the octahedral Fe2+ and Fe3+ occupancies, respectively.

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Nonstoichiometry, cation distribution, and electrical properties in Fe3O4‒CoFe2O4 at high temperature

Abstract

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