The acoustic properties of borosilicate glass affected by oxide of rare earth gadolinium

SiO 2–Na 2O–B 2O 3 glasses doped with different mol% content of Gd 2O 3 have been prepared by rapid-quenching method. Longitudinal and transverse ultrasonic wave velocities have been measured using the pulse-echo method at 4 MHz frequency at room temperature. Elastic moduli, Debye temperature, softe...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2010-08, Vol.405 (16), p.3395-3400
Main Author: Marzouk, Samir Y.
Format: Article
Language:English
Subjects:
Acoustical properties of solids
Borosilicate glasses
Condensed matter
Condensed matter: structure, mechanical and thermal properties
Debye temperature
Disordered solids
Elasticity, elastic constants
Exact sciences and technology
Gd 2O 3
Glass
Glasses
Mathematical models
Mechanical and acoustical properties of condensed matter
Mechanical properties of solids
Modulus of elasticity
Physics
Poisson’s ratio
Rare earth compounds
Rare earth metals
Silicon dioxide
Structure of solids and liquids
crystallography
Ultrasonic elastic moduli
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Summary:SiO 2–Na 2O–B 2O 3 glasses doped with different mol% content of Gd 2O 3 have been prepared by rapid-quenching method. Longitudinal and transverse ultrasonic wave velocities have been measured using the pulse-echo method at 4 MHz frequency at room temperature. Elastic moduli, Debye temperature, softening temperature and Poisson’s ratio have been obtained as a function of Gd 2O 3 modifier content and are found to be rather sensitive to the glass composition. Information about the structure of the glass can be deduced after calculating the average stretching force constant and the average ring size. A comparison between the experimental elastic moduli data obtained in this study and those calculated theoretically by other models has been discussed.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2010.05.011