ACOUSTIC STUDY OF Bi2O3-P2O5 GLASS

Ultrasonic velocity and attenuation of two samples of Bi2O3-P2O5 glass have been measured in the temperature range 80 to 300 K. With the velocity data Lame's constants, bulk modulus and Debye temperature have been calculated. Thermally activated relaxation process is good enough to explain the...

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Bibliographic Details
Published in:Phosphorus Research Bulletin 2000, Vol.11, pp.121-126
Main Authors: PAUL, AVIJIT, ROYCHOUDHURY, PIYALI, MUKHERJEE, SAMPAD, BASU, CHITRA
Format: Article
Language:English
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Summary:Ultrasonic velocity and attenuation of two samples of Bi2O3-P2O5 glass have been measured in the temperature range 80 to 300 K. With the velocity data Lame's constants, bulk modulus and Debye temperature have been calculated. Thermally activated relaxation process is good enough to explain the temperature variation of attenuation, but to interpret the variation of sound velocity the combined effect of relaxation, anharmonicity and frozen-in fluctuation has to be taken into consideration.
ISSN:0918-4783
1882-2363
DOI:10.3363/prb1992.11.0_121