Strains in the oxide scales and the substrate metals during oxidation

Strain relief and elastic deformation modes at high temperatures of metal-deficit type oxides are investigated using a high-temperature furnace capable of in situ measurement of elastic strains at about 1300 K under controlled atmospheres. The strain generation behavior of 0.5-30 micron thick nickel...

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Bibliographic Details
Published in:Transactions of the Japan Institute of Metals 1983-01, Vol.24, p.161-166
Main Authors: Homma, T, Pyun, Y-J
Format: Article
Language:English
Online Access:Get full text
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Summary:Strain relief and elastic deformation modes at high temperatures of metal-deficit type oxides are investigated using a high-temperature furnace capable of in situ measurement of elastic strains at about 1300 K under controlled atmospheres. The strain generation behavior of 0.5-30 micron thick nickel oxide grown on (100)Ni and polycrystalline nickel is studied in air at temperatures of 900-1300 K. It is found that the oxide scale is elastically strained in the compressive mode at 900 K, while the substrate nickel is strained in the tensile mode. The strain at 1300 K is found to show a different and more complicated mode than the strain at 900 K, with the oxide exhibiting the tensile mode and the metal exhibiting the compressive mode. Similar studies are performed on (100), (111), and polycrystal copper surfaces.
ISSN:0021-4434