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II. AUTOCLAVE TEST RESULTS ON CRAZING OF SANITARY WARE AND WALL TILE
Publication year - 1946
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1946.tb11581.x
Subject(s) - tile , autoclave , glaze , crazing , materials science , hydrostatic test , high pressure , composite material , mineralogy , metallurgy , geology , engineering , polymer , ceramic , engineering physics
A bstract Crazed earthenware may be healed by refiring at temperatures lower than the original maturing temperature of its glaze. Such refired specimens may be tested in the autoclave with the same results as the piece originally would have given in the autoclave. Several hundred pieces of old wall tile and sanitary ware were collected, refired, and tested. The investigation showed that testing for two hours with a vapor pressure of 100 lb. per sq in. is sufficient for wall tile and 150 lb. per sq. in. is suitable for sanitary ware to guarantee twenty years of noncrazing under normal conditions.