Author :
Arakawa, Mototaka ; Shimamura, Hideki ; Kushibiki, Jun-ichi
Author_Institution :
Dept. Electr. Eng., Tohoku Univ., Sendai, Japan
Abstract :
Ultrasonic microspectroscopy technology was applied to characterization of synthetic silica glasses. Acoustic properties (longitudinal and shear velocities, leaky surface acoustic wave velocity, and density), fictive temperature Tf, chlorine concentration C(Cl), and OH concentration C(OH) were measured, and related relationships among their properties were discussed. The longitudinal velocities in the acoustic properties have the highest sensitivities of 5.93°C/(m/s), -202 wtppm/(m/s), and -31 wtppm/(m/s), with resolutions of 0.6°C, 20 wtppm, and 3.1 wtppm, to Tf, C(Cl), and C(OH), respectively. The variations in the acoustic velocities due to Tf, C(Cl), and C(OH) are mainly caused by variations in elastic constants, except for shear velocity due to C(OH).
Keywords :
acoustic wave velocity; elastic constants; glass; nondestructive testing; surface acoustic waves; ultrasonic applications; SiO2; acoustic properties; chlorine concentration; elastic constants; leaky surface acoustic wave velocity; longitudinal velocities; shear velocities; silica glasses; ultrasonic microspectroscopy; Acoustic measurements; Glass; Optical refraction; Optical sensors; Optical surface waves; Optical variables control; Silicon compounds; Surface acoustic waves; Ultrasonic variables measurement; Velocity measurement; fictive temperature; impurity; synthetic silica glass; ultrasonic microspectroscopy; velocity;
