Evaluating the Physical and Optical Properties of K2O - TeO2 - WO3 - B2O3 Glasses | Chapter 7 | New Trends in Physical Science Research Vol. 8

 

The density, glass transition temperature, and optical traits of tellurium-primarily based totally glasses including  〖WO〗_3,B_2 O_3  and K_2 O are studied on this chapter.  The density and glass transition temperature of the cutting-edge gases range with  K_2 O mol% . The values of the direct optical band hole, oblique optical band hole energy (E_o), and Urbach energy (ΔE) have all been calculated from the optical absorption research. The values of (E_o ) and (ΔE) range linearly with〖 K〗_2 O mol%.

Author(s) Details:

Avula Edukondalu,
Department of Physics, Osmania University, Telangana, 500007, India and Department of Physics, University Post Graduate College, Secunderabad, Osmania University,  Telangana, 500003, India.

Please see the link here: https://stm.bookpi.org/NTPSR-V8/article/view/7886

Study on the Modification in Physical and Optical Properties of Lithium Bismuth Borate Glasses with Vanadium Oxide Addition | Chapter 12 | Research Trends and Challenges in Physical Science Vol. 5

 Using the traditional quenching procedure, a series of glasses with the general formula (40-x)Li2O:30B2O3:30Bi2O3:xV2O5, with x = 0, 0.5, 1.0, 1.5, and 2.0 mol percent, were created. Differential Thermal Analysis was used to estimate the glass transition temperature Tg for these samples. Beyond 0.5 mol percent, the glass transition temperature rises. The glasses under investigation are made up of BO3 and BO4 structural elements that are randomly joined. Glass density and molar volume were discovered to be dependent on V2O5 concentration. With the addition of V2O5, the density, molar volume, and glass transition temperature initially increase. This shows that when V2O5 is introduced to the glass at a concentration of up to 0.5 mol%, it may act as a modifier. As V2O5 travels from former to former above 0.5 mol percent, density declines and molar volume increases. This indicates V2O5's role as a glass network former in concentrations greater than 0.5 mol%. With more V2O5, the optical band gap energy lowers and the cutoff wavelength increases. The effect of transition metals on the optical characteristics of lithium bismuth borate glasses is being investigated by the authors.

Author(S) Details

V. D. Raut
G H Raisoni College of Engineering, Nagpur 440016, India.

A. V. Deshpande
Visvesvaraya National Institute of Technology, Nagpur 440010, India.

N. S. Satpute
Dharampeth M. P. Deo Memorial Science College, Nagpur 440033, India.

View Book:- https://stm.bookpi.org/RTCPS-V5/article/view/4961