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Reaction of Hydrogen with Optical Defects in Glasses
Author(s) -
Shelby James E.
Publication year - 1984
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.1151-2916.1984.tb19524.x
Subject(s) - annealing (glass) , hydrogen , deuterium , irradiation , chemical reaction , silica glass , materials science , oxygen , thermal , aluminium , chemical engineering , chemistry , mineralogy , analytical chemistry (journal) , metallurgy , thermodynamics , composite material , atomic physics , nuclear physics , biochemistry , physics , organic chemistry , chromatography , engineering
A kinetic model for the removal of optical defects in glasses by exposure to hydrogen or deuterium gas is presented. Since annealing involves a chemical reaction at low temperatures, it is called “chemical annealing” to distinguish it from the common, higher‐temperature, thermal annealing processes. As an example, this model is applied to the elimination of the aluminum/oxygen hole center in irradiated vitreous silica at 73°C in 93 kPa of D 2 .