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Effects of Radiation and Hydrogen on the Fracture Resistance of Borosilicate Glasses
Author(s) -
Moody Neville R.,
Robinson Steven L.,
Lucas James P.,
Handrock James,
Hwang Robert Q.
Publication year - 1995
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.1151-2916.1995.tb08369.x
Subject(s) - borosilicate glass , materials science , hydrogen , radiation resistance , fracture toughness , fracture (geology) , composite material , radiation , mineralogy , chemistry , optics , physics , organic chemistry
In this study, short bar fracture toughness samples were used to determine the effects of radiation and hydrogen on the resistance to fracture of vitreous silica and four commercial borosilicate glasses. The results showed that neither exposure to 10 10 rads of γ‐radiation nor saturation to a room‐temperature‐equivalent exposure of 408 atm of hydrogen had an effect on fracture resistance. Nevertheless, when samples were saturated with hydrogen and then exposed to radiation, resistance to fracture increased significantly in some of the glasses. The increase in the resistance to fracture correlated directly with the increase in concentration of hydroxyl and hydride groups created by exposure to radiation and hydrogen. The concentration of these groups differs with glass composition and accounts for the difference in behavior between the types of glass studied.