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A TERRA COTTA INDUSTRY FOR OHIO 1
Author(s) -
Watts Arthur S.
Publication year - 1921
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.1151-2916.1921.tb17374.x
Subject(s) - glaze , mineralogy , slip (aerodynamics) , geology , archaeology , materials science , art , geography , physics , composite material , thermodynamics , ceramic
Two terra cotta industries using Ohio clays existed in Ohio prior to 1860. Today no terra cotta industries exist within the State, although Ohio has the clay, fuel and skilled labor. One Ohio clay, the Tionesta or No. 3 B, is especially adapted for terra cotta. It crosses the state through Vinton, Hocking, Perry, Muskingum, Coshocton, Tuscrawas and Stark Counties. The occurrences and chemical composition as determined by the Ohio Geol. Survey are given by the author. This clay burns with a shrinkage of about 6 per cent and a porosity of about 8 per cent from cone 2 to cone 5 with practically no color variation. It will carry its own weight of non‐plastic without serious loss of mechanical strength. Successful combinations and working directions for body, engobe, glaze and vitreous slip are given.