Stability of Acid-Resistant Red Porcelain Enamels |
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| Authors: | REY C TUNG RALPH L COOK |
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| Affiliation: | Department of Ceramic Engineering, University of Illinois, Urbana, Illinois |
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| Abstract: | The comparative acid resistance of a series of enamels was determined by the loss-in-weight test and by the spot test. The stability of the red color oxide in these enamels was also studied by varying the alumina, fluoride, soda, and potassia contents in the frit. Improved acid resistance was obtained with no alumina and no fluoride in the frit. The stability of the red color was markedly influenced by the fluoride content; the absence of fluoride in the frit gave very poor stability. |
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