Abstract

AbstractRefractory ceramic base coatings were formulated and developed for application to ingot iron, low‐carbon steel, and alloy metals. Mill additions to increase the effectiveness of the coatings produced from various frit glasses were studied. Diaspore proved to be the most desirable of the materials considered. The formulation of special frit glasses was undertaken to further increase the refractoriness and heat‐resistant properties of ceramic coatings. The effects of changes in the base composition and the inclusion of various refractory materials was investigated. Tests for the evaluation of the coatings are listed with a summary of the results obtained. Metal preparation and procedures are described. Sandblasting is the recommended method of preparing metals for coating. Results of service tests are discussed. The important part that ceramics can play in aeronautics is pointed out.

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