The Effect of Different Amounts of ZnO on Structural Properties of Aluminosilicate Glasses

مهندسی متالورژی و مواد

Article 10, Volume 32, Issue 1 - Serial Number 23, June 2021, Pages 125-136   

Document Type: Original Articles

DOI: 10.22067/jmme.2020.39262

Authors

Zahra Kahrobaee^{* 1}; Sajad Azghandirad^{* 2}; Javad NaeemAbadi^{* 3}; Masoud Tavakolian Akbari^{* 3}; Sahar Mollazadeh^{* 3}; Mohammad Mazinani^{* 1}

¹Department of Materials Engineering, Faculty of Engineering, Ferdowsi University Of Mashhad.

²Student, Department of Materials Engineering, Faculty of Engineering, Ferdowsi University of Mashhad

³Department of Materials Engineering, Faculty of Engineering, Ferdowsi University of Mashhad.

Abstract

The effect of different amounts of ZnO on structural properties of SiO₂-Al₂O₃-p < sub>2O₅-CaF₂-CaO-K₂O-Na₂O-xZnOglasses was studied. The effect of ZnO addition on glass transition and crystallization temperatures were studied by DTA. FTIR and RAMAN were used to study the characteristic bands of prepared glasses. All samples were heat treated at two different temperatures of 750 and 1100°C. XRD analysis showed that anorthite and calciumphosphate were the main crystalline phases. Based on DTA and XRD results, samples with higher amounts of ZnO were crystallized at higher temperatures. No significant band changes were detected as a result of ZnOaddition as spectroscopic results showed. Vickers microhardness numbers showed that ZnO addition up to 2gr lead to a significant (p < 0.05) improvement in microhardness values.

Keywords

Glass-ceramic; Zinc Oxid; Heat-treatment; Micro-hardness

Supplementary Files

10-Kahroba persian.pdf

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