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Effect of H 2 O Vapor on the Internal Friction of Binary Alkali Silicate Glasses
Author(s) -
Zdaniewski Wieslaw A.,
Rindone Guy E.
Publication year - 1981
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.1151-2916.1981.tb15910.x
Subject(s) - alkali metal , silicate glass , silicate , materials science , internal friction , relaxation (psychology) , shear modulus , torsion pendulum clock , mineralogy , thermodynamics , analytical chemistry (journal) , composite material , chemistry , organic chemistry , psychology , social psychology , physics , quantum mechanics
Internal friction and shear modulus of Na, K, and Li disiticate glasses were measured by a torsional pendulum as a function of H 2 O vapor treatment at T=300°C. H 2 O produced changes in the acoustic spectra (between—100° and 400°C and f=0.5 Hz) similar to the mixed‐alkali effect which appears upon introduction of a second alkali to a single‐alkali glass. An Na 2 O·2SiO 2 glass free from the common nonbridging oxygen relaxation was produced .