A study was undertaken to evaluate the resistance of various materials and coatings to the adherence of molten borosilicate glass. Candidate materials were ranked on the ability to shed molten glass as the material surface temperature was elevated. Superior performance was achieved with materials that either had a high thermal conductivity or were non-metallic/non-wetting. Metallic materials that formed loosely adhering oxide layers also performed acceptably. Results of the test and application of the candidate material in a radioactive waste glass melter will be presented.
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