Gamma Radiation Effects on the Strength of a Borosilicate Glass

Abstract
The effects of60Co gamma radiation on the strength‐related mechanical properties of a borosilicate glass were examined. Although the glass darkened considerably, only a very slight densification was observed after irradiation to levels of 108rads. The strength distributions were not appreciably changed by the irradiation, nor was the calculated slow crack growth parameter, orNvalue. Neither did radiation affect the elastic modulus or the fracture toughness of the glass. Gamma radiation does not affect the strength below 108rads.

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