Premium
Relation Between Refractive Index and Elastic Moduli of a Borosilicate Glass After Heat‐Treatment
Author(s) -
SPINNER SAM,
NAPOLITANO ALBERT
Publication year - 1956
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.1151-2916.1956.tb15610.x
Subject(s) - borosilicate glass , refractive index , elastic modulus , refractometer , materials science , moduli , refraction , annealing (glass) , composite material , glass transition , optics , mineralogy , chemistry , polymer , physics , optoelectronics , quantum mechanics
Several specimens of a borosilicate glass were subjected to a series of different annealing schedules and the refractive indices and elastic moduli were measured and compared after each heat‐treatment. The elastic moduli were determined by a dynamic resonance method at frequencies both within and slightly above the sonic range. The refractive indices were measured on the Grauer refractometer. A linear relation was found to exist between these two properties for specimens with different heat‐treatments. A linear relation has already been established between refractive index and density by several investigators. This indicates that a single fictive temperature (τ) scale can be used to characterize the condition of a glass with respect to three properties: index of refraction, density, and elastic moduli.