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OBSERVATIONS INDICATING ABSENCE OF PLASTIC FLOW IN GLASS COATING ON STEEL *
Author(s) -
Martin W. G.,
Lauck F. W.
Publication year - 1944
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.1151-2916.1944.tb14482.x
Subject(s) - composite material , materials science , coating , compressive strength , flow (mathematics) , stress (linguistics) , plasticity , glass fiber , mechanics , linguistics , philosophy , physics
A bstract Steel rings were glass coated, and some were split at one point immediately and others one or two years later. Identical movement of the rings caused by compressive forces in the glass indicated that no plastic flow takes place in the glass. The compressive forces were calculated and found to be of the general order of 10,000 Ib. per sq. in. The method of calculation is described. VI. Summary (1) Equal contraction of glass‐coated steel rings cut immediately after firing and those cut one and two years later indicates no plastic flow of the glass coating. (2) Calculations indicate a compressive stress of 10,900 lb. per sq. in. in the glass coating. (3) No definite explanation is advanced for the absence of plastic flow under such stress values except the suggestion that the cross‐section dimensions of the glass and relatively large surface area may account for restraining forces.