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THE “MOISTURE EXPANSION” OF GLASSES 1
Author(s) -
Milligan Lowall H.,
Armitage David
Publication year - 1932
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.1151-2916.1932.tb13917.x
Subject(s) - grinding , materials science , moisture , composite material , borosilicate glass , mineralogy , analytical chemistry (journal) , chemistry , chromatography
Changes in the overall length of bars, about 4 by 3/4 by 1/8 inches in dimensions, made of plate glass, Pyrex glass, and various glasses such as constitute bonding agents in vitrified grinding wheels, were studied by means of a Zeiss optimeter that could be read to hundred thousandths of an inch. The bars were measured, then heated for one hour in (a) saturated steam at 150 lb. per sq. in., or (b) air oven at 184°C, and then allowed to cool to room temperature and remeasured. No increases in length of any of the bars were found within the experimental accuracy of the results (about 0.0015%).