Thermodynamics of Fe(II)Fe(III) oxide systems I. Hydrothermal Fe3O4
Journal of Chemical Thermodynamics
By: J.J. Bartel, E.F. Westrum Jr., and J.L. Haas Jr.
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Abstract
The heat capacity of a hydrothermally-prepared polycrystalline sample of Fe3O4 was measured from 53 to 350 K, primarily to study the thermophysics of the Verwey transitions. Although the bifurcation of the transition was confirmed, the sample was found to contain traces of manganese. The observed transition temperatures of 117.0 and 123.0 K are 3.7 and 4.2 K higher respectively than those found in pure Fe3O4. Ancillary analytical results are consistent and indicate a stoichiometry of Mn0.008Fe2.992O4 for this material. Characteristics in the transition region are ascribed to dopant effects. ?? 1976.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Thermodynamics of Fe(II)Fe(III) oxide systems I. Hydrothermal Fe3O4 |
| Series title | Journal of Chemical Thermodynamics |
| DOI | 10.1016/0021-9614(76)90031-8 |
| Volume | 8 |
| Issue | 6 |
| Year Published | 1976 |
| Language | English |
| Publisher | Elseveir |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Chemical Thermodynamics |
| First page | 575 |
| Last page | 581 |
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