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We have studied the reaction of M45 and SK20 glass enamels with PZhR3 iron and an iron − phosphorus alloy containing 0.8 mass% phosphorus using the "sessile" drop method in the temperature range 1000-1300°C. We have established that when the M45 glass enamel reacts with the iron, then oxides of alkali metals Mg and Na oxidize it to Fe 2 O 3 . The iron in the contact zone of the iron − SK20 glass enamel system is oxidized by zinc oxide, while the iron oxide formed dissolves in the glass enamel.Adhesion of the SK20 glass enamel to the iron surface is significantly better than in the Fe − M45 system. The best adhesion properties are observed in the iron-phosphorus alloy − SK20 glass enamel system, due to the more vigorous reaction between the components.

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