Reactive interdiffusion: Deviation from local equilibrium in the Fe-NiTiO3 couple

K. T. Jacob; G. Rajitha; S. N.S. Reddy

doi:10.1016/j.scriptamat.2010.03.053

Reactive interdiffusion: Deviation from local equilibrium in the Fe-NiTiO₃ couple

K. T. Jacob
, G. Rajitha
, S. N.S. Reddy

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

2 Scopus citations

Abstract

Deviation from local equilibrium between Fe-Ni alloy and (Fe,Ni)TiO ₃ solid solution in the reaction-diffusion zone of the Fe-NiTiO ₃ couple at 1273 K is evaluated by comparing the measured compositions in the zone with experimentally determined equilibrium tie-lines. The deviation is quantified by computing the Gibbs energy change for the reaction, Fe + NiTiO₃ → FeTiO₃ + Ni, from measured compositions in the zone and activity data available in the literature. Except near the extremities of the zone, the computed Gibbs energy change is constant, 8.2 kJ mol^-1 higher than the standard Gibbs energy change for the reaction.

Original language	English
Pages (from-to)	204-206
Number of pages	3
Journal	Scripta Materialia
Volume	63
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2010.03.053
State	Published - Jul 2010
Externally published	Yes

Keywords

Diffusion
Oxides
Phase diagram
Thermodynamics

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10.1016/j.scriptamat.2010.03.053

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title = "Reactive interdiffusion: Deviation from local equilibrium in the Fe-NiTiO3 couple",

abstract = "Deviation from local equilibrium between Fe-Ni alloy and (Fe,Ni)TiO 3 solid solution in the reaction-diffusion zone of the Fe-NiTiO 3 couple at 1273 K is evaluated by comparing the measured compositions in the zone with experimentally determined equilibrium tie-lines. The deviation is quantified by computing the Gibbs energy change for the reaction, Fe + NiTiO3 → FeTiO3 + Ni, from measured compositions in the zone and activity data available in the literature. Except near the extremities of the zone, the computed Gibbs energy change is constant, 8.2 kJ mol-1 higher than the standard Gibbs energy change for the reaction.",

keywords = "Diffusion, Oxides, Phase diagram, Thermodynamics",

author = "Jacob, \{K. T.\} and G. Rajitha and Reddy, \{S. N.S.\}",

year = "2010",

month = jul,

doi = "10.1016/j.scriptamat.2010.03.053",

language = "אנגלית",

volume = "63",

pages = "204--206",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Reactive interdiffusion

T2 - Deviation from local equilibrium in the Fe-NiTiO3 couple

AU - Jacob, K. T.

AU - Rajitha, G.

AU - Reddy, S. N.S.

PY - 2010/7

Y1 - 2010/7

N2 - Deviation from local equilibrium between Fe-Ni alloy and (Fe,Ni)TiO 3 solid solution in the reaction-diffusion zone of the Fe-NiTiO 3 couple at 1273 K is evaluated by comparing the measured compositions in the zone with experimentally determined equilibrium tie-lines. The deviation is quantified by computing the Gibbs energy change for the reaction, Fe + NiTiO3 → FeTiO3 + Ni, from measured compositions in the zone and activity data available in the literature. Except near the extremities of the zone, the computed Gibbs energy change is constant, 8.2 kJ mol-1 higher than the standard Gibbs energy change for the reaction.

AB - Deviation from local equilibrium between Fe-Ni alloy and (Fe,Ni)TiO 3 solid solution in the reaction-diffusion zone of the Fe-NiTiO 3 couple at 1273 K is evaluated by comparing the measured compositions in the zone with experimentally determined equilibrium tie-lines. The deviation is quantified by computing the Gibbs energy change for the reaction, Fe + NiTiO3 → FeTiO3 + Ni, from measured compositions in the zone and activity data available in the literature. Except near the extremities of the zone, the computed Gibbs energy change is constant, 8.2 kJ mol-1 higher than the standard Gibbs energy change for the reaction.

KW - Diffusion

KW - Oxides

KW - Phase diagram

KW - Thermodynamics

UR - https://www.scopus.com/pages/publications/77955926603

U2 - 10.1016/j.scriptamat.2010.03.053

DO - 10.1016/j.scriptamat.2010.03.053

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AN - SCOPUS:77955926603

SN - 1359-6462

VL - 63

SP - 204

EP - 206

JO - Scripta Materialia

JF - Scripta Materialia

IS - 2

ER -

Reactive interdiffusion: Deviation from local equilibrium in the Fe-NiTiO₃ couple

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Keywords

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