Comparison of WC and SiO2 mill additives for abrasion resistance sodium borosilicate glass-ceramics coating

• Published in: Journal of ceramic processing research pp. 234 - 241
• Main Authors: Yasin Bozkurt Yılmaz, Oğuz Karaahmet, Buğra Çiçek
• Format: Journal Article
• Language: English
• Published: 청정에너지연구소 01.04.2024
• Subjects: 재료공학
• ISSN: 1229-9162; 2672-152X
• DOI: 10.36410/jcpr.2024.25.2.234

Vitreous enamel (glass-ceramic) coatings are used to improve surface properties of metals due to their chemical and hightemperature resistance. With the widespread use of enamelled products, it is necessary to develop enamels with high abrasionresistance, which protects their performance in abrasive environment such as scratches and friction damage. In this study,tungsten carbide (WC) and quartz (SiO2) were added as mill additives into the enamel composition in proportions rangingfrom 0 wt.% to 8 wt.%. An XRD analysis was performed to examine the effects of additives on crystal phases. Dependingon the additive type, SiO2, CaWO4 and WC phases were observed. The batches were applied on cast iron. The abrasionresistance of the enamelled cast iron surfaces were investigated by PEI test (ISO 10545-7). An SEM-EDS analysis were carriedout to investigate the fracture mechanism and the effects of addition on the microstructure. The analyses reveal that surfacemorphology and abrasion resistance of the enamel coatings change depending on the mill additive rate. With 8 wt.% WC and8 wt.% SiO2 addition, the abrasion resistance was improved by 51.80% compared to the standard sample KCI Citation Count: 0