TP25 : Fabrication and characterization of electromagnetic waves absorbant lead glasses
Thesis > Central Library of Shahrood University > Chemical and Materials Engineering > MSc > 2019
Authors:
Abolfazl Khodadadi [Author], Reza Taherian[Supervisor]
Abstarct: Today, electromagnetic absorber glass, especially lead silicate glass, is widely used for protection applications against these high energy waves. These glasses are used both in routine medical practice, including for the protection of staff and patients in X-ray experiments with materials and in the science of materials engineering in advanced research laboratories and instruments. And building material identification), used for the safety and security of the device. Due to its high atomic number, Pb has a high absorption coefficient and has good absorption power to absorb electromagnetic waves. The aim of this study was to obtain high adsorbent lead silicate glass by adding different oxides of lead to obtain optimum adsorption. In this study a number of disadvantages of electromagnetic waves have been pointed out and the process of making lead silicate glass has been presented and their absorption rate is increased by adding oxides such as barium oxide, zinc oxide, boron oxide and calcium oxide by 5, 10 And 15% molar compared to baxsesample with 60% silicon molar and 40% lead oxide molar. Also analysis such as differential scanning calorimetry, X-ray diffraction, scanning electron microscopy, density and reflection spectroscopy to calculate, discuss and evaluate various parameters such as fuzzy structure and morphology, glass temperature at different thermal rates, Activation, forbidden bandgap energy, fracture index, refractive index and absorption rate were determined and mass absorption coefficient of the samples was compared using XCOM software. The optimal sample was identified.
Keywords:
#Lead Silicate Glass #Absorbent Glass #Electromagnetic Waves #Differential Scanning Calorimetry(DSC) #X-ray Diffraction(XRD) #Scanning Electron Microscopy(SEM) #Density #Diffuse Reflection Spectroscopy(UV-VIS) #XCOM Software Link
Keeping place: Central Library of Shahrood University
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