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Effect of γ Radiation on High‐Water‐Content‐Glasses
Author(s) -
ACOCELLA J.,
TAKATA M.,
TOMOZAWA M.,
WATSON E.B.,
WARDEN J.T.
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.tb10504.x
Subject(s) - hydrothermal circulation , irradiation , absorption (acoustics) , radiation , analytical chemistry (journal) , absorption of water , absorption spectroscopy , chemistry , infrared spectroscopy , materials science , water content , mineralogy , optics , environmental chemistry , chemical engineering , composite material , geology , physics , geotechnical engineering , nuclear physics , engineering , organic chemistry
Na 2 O−3SiO z ‐glasses containing up to ∼11 wt% water were prepared under high‐pressure, hydrothermal conditions. The samples were exposed to γ radiation of 5 × 10 7 rad. Optical and ESR measurements were made before and after exposure to radiation and it was found that the induced absorption in the visible region decreased drastically with increasing H 2 O concentration. The induced ESR signal‐integrated intensity also decreased with increasing water content. After irradiation an increase was observed in the fundamental OH absorption bands in the ir region of the spectra of the water‐containing specimens.