The reactive element effect on the growth rate of nickel oxide scales at high temperature

The restriction of oxide-scale growth by an incorporated reactive element has been investigated for the oxidation at 900degreesC of CeO2-coated and Ce-alloyed Ni. Analytical electron microscopy of scales in transverse section revealed that significant inhibition of diffusion along a network of grain...

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Bibliographic Details
Published in:Oxidation of metals 1989-08, Vol.32 (1-2), p.47-66
Main Author: MOON, D. P
Format: Article
Language:English
Subjects:
360105 - Metals & Alloys- Corrosion & Erosion
Applied sciences
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
Corrosion
Corrosion mechanisms
Cross-disciplinary physics: materials science
rheology
DATA
DATA ANALYSIS
ELEMENTS
Exact sciences and technology
EXPERIMENTAL DATA
INFORMATION
MATERIALS SCIENCE
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
Metals, semimetals and alloys
Metals. Metallurgy
NICKEL
NICKEL COMPOUNDS
NICKEL OXIDES
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
Physics
RARE EARTH COMPOUNDS
SCALE CONTROL
Specific materials
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
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Description
Summary:The restriction of oxide-scale growth by an incorporated reactive element has been investigated for the oxidation at 900degreesC of CeO2-coated and Ce-alloyed Ni. Analytical electron microscopy of scales in transverse section revealed that significant inhibition of diffusion along a network of grain-boundary pathways in NiO was associated with segregation of Ce at a high concentration. The development of this form of Ce distribution depended critically on the provision of sufficiently small and closely spaced CeO2 source particles within the scale.
ISSN:0030-770X
1573-4889
DOI:10.1007/BF00665268