SINTERING OF CONTROLLED THICKNESS CERAMIC COATINGS ON METAL USING HIGH INTENSITY LIGHT

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Authors
  1. Camm, D.M.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN);Vortek Industries Ltd, Vancouver BC (CAN)
Abstract
Self fluxed cermet (Metco 34F) coatings have been prepared on 0.25" thick steel panels by high intensity light sintering. The cermet coatings were metallurgically bonded to the substrate. Complete coverage of the surface (i.e. without pinholes in the coating) has not been achieved for the cermet coatings. Porcelain enamel (Ferro XG684) glass coatings have been also prepared on 0.25" thick steel panels by high intensity light sintering. The glass coatings were well bonded to the steel substrate. Residual carbonaceous char from the decomposition of organic binders was present in both glass and cermet coatings of an organic binder was used. The inorganic binder reduced the surface char, drastically reduced smoke formation during sintering and improved and smoothness of the glass coating. The thickness of the steel substrate greatly affects the amount of warpage caused by the light sintering. Warpage of between 0.02" to 0.08" was seen for 4" x 8" x 0.25" panels and slightly less for panels greater than 0.25" thickness.
Keywords
High intensity lamps
Report Number
DREP-CR-95-50 — Contractor Report Series
Date of publication
31 Mar 1995
Number of Pages
88
DSTKIM No
96-00654
CANDIS No
155073
Format(s):
Document Image stored on Optical Disk;Hardcopy

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