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Crack Blunting of High‐Silica Glass
Author(s) -
ITO S.,
TOMOZAWA M.
Publication year - 1982
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.1151-2916.1982.tb10486.x
Subject(s) - silicic acid , dissolution , materials science , composite material , immersion (mathematics) , precipitation , porosity , porous glass , mechanical strength , mineralogy , chemical engineering , chemistry , physics , mathematics , meteorology , pure mathematics , engineering
The mechanical strength of abraded high‐silica glass was measured after immersion in water and silicic acid solution at room temperature and 88°C. The strength increase was observed at 88°C. This phenomenon is usually explained by crack blunting. From an observation of the dissolution rate of a porous glass with a similar composition and a comparison of the strength increase in water and silicic acid, it was concluded that the dissolution and subsequent precipitation of the high–silica glass is the mechanism of the crack blunting.