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Acoustic Characterization of Silica Glasses
Author(s) -
Jen ChengKuei,
Neron Christian,
Shang Alain,
Abe Koich,
Bonnell Lee,
Kushibiki Junichi
Publication year - 1993
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.1151-2916.1993.tb03664.x
Subject(s) - dopant , materials science , doping , refractive index , characterization (materials science) , scanning acoustic microscope , mineralogy , scanning electron microscope , analytical chemistry (journal) , silica glass , acoustic microscopy , optics , microscopy , composite material , chemistry , nanotechnology , optoelectronics , physics , chromatography
Acoustic characterization of doped silica glasses with a GeO 2 , P 2 O 5 , F, TiO 2 , Al 2 O 3 , or B 2 O 3 dopant having different concentrations is presented. Quantitative measurements were performed with a 225‐MHz line‐focus‐beam scanning acoustic microscope. The acoustic velocity variation due to different dopant concentrations is given. It has been found that the Al 2 O 3 dopant increases, but the other dopants decrease, the acoustic velocity as compared with that of the pure fused silica. We have also found that the fractional change in acoustic velocity is greater than that in refractive index for a given dopant concentration.