SINTERING AND COATING OF CERAMICS USING CARBON DIOXIDE LASER
- 1 January 1991
- journal article
- research article
- Published by Taylor & Francis in Materials and Manufacturing Processes
- Vol. 6 (1) , 139-159
- https://doi.org/10.1080/10426919108934740
Abstract
Laser sintering and ceramic coating techniques for synthesis of new ceramics have been investigated. The laser sintering method is useful instead of furnace treatment for the densification of materials having high melting points. The new ceramics, ZrO2-V2O-HfO2 which have a melting point of 2850°C and a hardness of about 1850 kgf/cm have been sintered. The single crystal of AI2O33WO3 was found to form under nonequilibrium states in the Al2O3-WO3 system. A ceramic coating that forms a solid electrolyte layer of a fuel cell was also developed. The laser beam was parallel to the substrate surface on which melted ceramics were deposited by a powder gun. The properties of the coated layer are discussed with the melted particles passing through the laser beamKeywords
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