Work

Viscosity and Crystallization Kinetics of Alkaline Earth Vanadate Glasses

Year: 2025

Type: article

Abstract: ABSTRACT Vanadate glasses exhibit promising structural and functional properties, making them attractive candidates for application in advanced optics and electronics. This study explores the thermal and crystallization behavior of vanadate glasses containing varying concentrations of alkaline earth elements. Results show that increasing alkaline earth content increases glass transition temperature and thermal stability while reducing fragility. Metavanadate compositions demonstrate the most favorable viscosity characteristics for processing, maintaining the highest stability with respect to temperature variations. Crystallization analyses reveal consistent activation energies and surface‐dominated mechanisms, supported by an Avrami exponent of approximately 1. These findings, confirmed through differential scanning calorimetry (DSC) and Johnson, Mehl, Avrami, and Kolmogorov (JMAK) equation, highlight the suitability of alkaline earth vanadate glasses. Scanning electron microscopy (SEM) imaging provides further evidence for the crystallization morphology and mechanism.

Source: International Journal of Ceramic Engineering & Science

DOI: 10.1002/ces2.70028

Authors: Adam Shearer, Maziar Montazerian, John C. Mauro

Institution: Pennsylvania State University

Language: English

Topic: Glass properties and applications

Subfield: Ceramics and Composites

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,290

Funders: University of Pennsylvania, Pennsylvania State University, Office of Naval Research