SINTERING AND COATING OF CERAMICS USING CARBON DIOXIDE LASER

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, ZrO 2 -V 2 O - HfO 2 which have a melting point of 2...

Full description

Saved in:
Bibliographic Details
Published in:Materials and manufacturing processes 1991-01, Vol.6 (1), p.139-159
Main Author: Okutomi, M.
Format: Article
Language:English
Subjects:
coatings
laser beam applications
sintering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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, ZrO 2 -V 2 O - HfO 2 which have a melting point of 2850 ° C and a hardness of about 1850 kgf/cm have been sintered. The single crystal of AI 2 O 3 3WO 3 was found to form under nonequilibrium states in the Al 2 O 3 -WO 3 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 beam
ISSN:1042-6914
1532-2475
DOI:10.1080/10426919108934740