Dissolution of NiFe<inf>2</inf>O<inf>4</inf> particles in a NiO matrix

S. R. Summerfelt; C. B. Carter

doi:10.1016/0956-7151(92)90350-N

Dissolution of NiFe<inf>2</inf>O<inf>4</inf> particles in a NiO matrix

S. R. Summerfelt
, C. B. Carter

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

9 Scopus citations

Abstract

A TEM sample containing NiFe2O4 particles in a NiO matrix was subjected to a series of heat treatments in air and then characterized between heat treatments. Spinel particles between 75 and 100 nm in size were observed after a 1000°C heat treatment but had disappeared after a 1015°C heat treatment. According to the NiFeO phase diagram, a TEM sample containing 4 cation-% Fe should contain spinel particles up to 1200°C. This discrepancy between the experimentally observed temperature at which spinel dissolved and the temperature predicted by the phase diagram is discussed in terms of the Gibbs-Thomson effect. © 1992.

Original language	English
Pages (from-to)	2799-2804
Number of pages	6
Journal	Acta Metallurgica Et Materialia
Volume	40
Issue number	10
DOIs	https://doi.org/10.1016/0956-7151(92)90350-N
State	Published - Jan 1 1992
Externally published	Yes

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title = "Dissolution of NiFe2O4 particles in a NiO matrix",

abstract = "A TEM sample containing NiFe2O4 particles in a NiO matrix was subjected to a series of heat treatments in air and then characterized between heat treatments. Spinel particles between 75 and 100 nm in size were observed after a 1000°C heat treatment but had disappeared after a 1015°C heat treatment. According to the NiFeO phase diagram, a TEM sample containing 4 cation-\% Fe should contain spinel particles up to 1200°C. This discrepancy between the experimentally observed temperature at which spinel dissolved and the temperature predicted by the phase diagram is discussed in terms of the Gibbs-Thomson effect. {\textcopyright} 1992.",

author = "Summerfelt, \{S. R.\} and Carter, \{C. B.\}",

year = "1992",

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doi = "10.1016/0956-7151(92)90350-N",

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T1 - Dissolution of NiFe2O4 particles in a NiO matrix

AU - Summerfelt, S. R.

AU - Carter, C. B.

PY - 1992/1/1

Y1 - 1992/1/1

N2 - A TEM sample containing NiFe2O4 particles in a NiO matrix was subjected to a series of heat treatments in air and then characterized between heat treatments. Spinel particles between 75 and 100 nm in size were observed after a 1000°C heat treatment but had disappeared after a 1015°C heat treatment. According to the NiFeO phase diagram, a TEM sample containing 4 cation-% Fe should contain spinel particles up to 1200°C. This discrepancy between the experimentally observed temperature at which spinel dissolved and the temperature predicted by the phase diagram is discussed in terms of the Gibbs-Thomson effect. © 1992.

AB - A TEM sample containing NiFe2O4 particles in a NiO matrix was subjected to a series of heat treatments in air and then characterized between heat treatments. Spinel particles between 75 and 100 nm in size were observed after a 1000°C heat treatment but had disappeared after a 1015°C heat treatment. According to the NiFeO phase diagram, a TEM sample containing 4 cation-% Fe should contain spinel particles up to 1200°C. This discrepancy between the experimentally observed temperature at which spinel dissolved and the temperature predicted by the phase diagram is discussed in terms of the Gibbs-Thomson effect. © 1992.

UR - https://www.scopus.com/pages/publications/0026938902

U2 - 10.1016/0956-7151(92)90350-N

DO - 10.1016/0956-7151(92)90350-N

M3 - Article

SN - 0956-7151

VL - 40

SP - 2799

EP - 2804

JO - Acta Metallurgica Et Materialia

JF - Acta Metallurgica Et Materialia

IS - 10

ER -

Dissolution of NiFe<inf>2</inf>O<inf>4</inf> particles in a NiO matrix

Abstract

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