Structural Analysis of Some Alkali Diborate Glasses

• Authors: Y. Saddeek , M. Gaafar , N. Abd El-Aal , L. Abd El-Latif
• Languages of publication: EN

Abstracts

EN

This manuscript presents a theoretical analysis of the correlation between the computed bulk modulus and the structure of a series of multicomponent sodium diborate based glasses in terms of the bond compression model. The main parameters in the analysis were the computed elastic moduli, the average stretching force constant and the average atomic ring size. These parameters were calculated for every glass series and for every glass composition. The results showed that the average force constant and the elastic moduli of these glasses are sensitive to the decrease in the sodium diborate content. This behaviour was attributed to the increase in the molar volume, and to the role of the different modifiers.

Keywords

EN

61.43.Fs; 62.30.+d; 65.60.+a

Discipline

• 62.30.+d: Mechanical and elastic waves; vibrations(see also 43.40.+s Structural acoustics and vibration; 46.40.-f Vibrations and mechanical waves in continuum mechanics of solids)
• 61.43.Fs: Glasses
• 65.60.+a: Thermal properties of amorphous solids and glasses: heat capacity, thermal expansion, etc.

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 116
• Issue: 2
• Pages: 211-216

Dates

published

2009-08

received

2009-01-30

(unknown)

2009-03-24

Contributors

author

Y. Saddeek

• Physics Department, Faculty of Science, Al-Azhar University, P.O. 71452, Assiut, Egypt

author

M. Gaafar

• Ultrasonic Laboratory, National Institute for Standards, Tersa Str., P.O. Box 136, El-Haram, El-Giza 12211, Egypt

author

N. Abd El-Aal

• Ultrasonic Laboratory, National Institute for Standards, Tersa Str., P.O. Box 136, El-Haram, El-Giza 12211, Egypt

author

L. Abd El-Latif

• Ultrasonic Laboratory, National Institute for Standards, Tersa Str., P.O. Box 136, El-Haram, El-Giza 12211, Egypt

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Identifiers

DOI

10.12693/APhysPolA.116.211