Morphology of different composite materials in hydrogen-thermal treatment

This work presents the results of a comparative examination of the microstructure of materials manufactured from a mechanical mixture of powders at different combinations of metal oxides and flux-forming components before and after the hydrogen-thermal treatment. It has been determined that in using an additional catalyst in the initial product during the process of the hydrogen-thermal treatment, a composite material is formed with a perfect regular microstructure and a large amount of metal-containing globular particles of different sizes. If the additional catalyst does not participate in the process of the hydrogen-thermal treatment, then the regular structure in the composite material is not formed and the metal-containing particles become comparatively flat and shapeless. It is assumed that the application of the composite materials with a regular microstructure for the deposition of protective and strengthening coatings will contribute to the improvement of the service properties of the products. Copyright (C) 1997 International Association for Hydrogen Energy.