Valorization of silicon cutting waste and high-alumina fly ash for sustainable synthesis of O′-sialon

Key Points

• The aim is to develop a sustainable method for synthesizing O′-sialon ceramics from silicon cutting waste and high-alumina fly ash.
• Utilized silicon cutting waste (SCW) and high-alumina fly ash (HAFA) as primary materials.
• Developed a synthesis route for O′-sialon ceramics using these waste products.
• Successfully synthesized O′-sialon ceramics from the combination of SCW and HAFA, demonstrating effective valorization of waste materials.