New glasses; tellurite glasses

International Conference and Exhibition on Mesoscopic & Condensed Matter Physics

June 22-24, 2015 Boston, USA

R El-Mallawany

Menofia University, Egypt

Posters-Accepted Abstracts: J Material Sci Eng

Abstract :

In materials engineering design prediction and understanding over the physical properties are essential to develop new class of functionalized materials. The modification of properties induced by the addition of transition metal oxides (TMO) or rare earth oxides (REO) into host glass matrix like tellurite glasses have attracted a lot of attention due to their physical properties and applications. The present work will throw some light on the structural aspects of these glasses. These quantitative conclusions will help in materials engineers and scientists to design, predict and understand the physical properties to develop new class of materials by calculations of: � number of bonds per unit volume, nb, � average stretching force constant in the glass network, , � Calculated bulk modulus by bond compression model Kbc, � ring diameter of glass network, �, � average crosslink density, � Poisson�s ratio, 6th. � for 26 composition of tellurite glasses

Biography :

R El-Mallawany served as a research group leader for semiconducting tellurite glasses at Menofia University., Egypt. He published more than 90 international articles, taught physics for undergraduates & postgraduates for nearly 4 decades and supervised and examined 25 PhD & MSc thesis at 9 Egyptian & Arab Universities. Also, he cooperated with 15 American, European and Asian Universities in the experimental & theoretical contribution in optical, electrical, thermal, elastic and vibrational aspects in condensed matter physics “Semiconducting Glasses”.

Email: raoufelmallawany@Yahoo.com