This study investigates the crystallization kinetics and thermal transitions of lithium zinc borosilicate glass-ceramic coatings applied to DC06EK steel substrates, utilizing advanced thermal analysis techniques. Through the employment of hot stage microscopy (HSM), optical dilatometry, and differential thermal analysis (DTA), we systematically assess the significant thermal transitions including sintering, glass transition, and crystallization temperatures under varied heating rates. The results indicate that increasing the heating rates leads to a marked elevation in crystallization temperatures, suggesting an acceleration in the crystallization kinetics of the coatings. This acceleration is further quantified using Kissinger's method, which provides insights into the energy barriers and the reaction rates that govern the crystallization process. Complementary to the thermal analyses, X-ray diffraction (XRD) studies post heat-treatment reveal the development of specific crystalline phases critical for optimizing the mechanical properties of the coatings. These phases contribute significantly to the functional characteristics of the coatings, enhancing their suitability for protective applications on steel substrates. The findings of this research highlight the crucial role of precise thermal management in controlling the crystallization behavior of glass-ceramic materials. This study not only advances the understanding of the thermal and kinetic behaviors of glass-ceramics but also demonstrates the potential for optimizing such materials for enhanced industrial applications in surface engineering and protective coatings.
This study has been extracted from the Ph.D. Thesis of the first author. ORCID NO: 0000-0001-9328-7511
Anahtar Kelimeler: Glass-ceramic coatings, crystallization kinetics, thermal analysis, differential thermal analysis (DTA), Kissinger's method
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