The aluminium industry is one of the most demanding industries, requiring materials that can withstand high temperatures, wear, and corrosion. Sialon ceramics are a family of advanced ceramics that possess excellent properties making it ideal for use in the aluminium industry.
Sialon Ceramics in the Aluminium Industry
Sialon ceramics are composed of silicon, aluminium, oxygen, and nitrogen. They are formed by sintering a mixture of silicon nitride, aluminium nitride, and a small amount of yttrium oxide. The presence of oxygen in Sialon ceramics results in the formation of a glassy phase that fills the grain boundaries, enhancing their strength and toughness. Sialon ceramics have a unique combination of properties, making them ideal for use in the aluminium industry.
High-Temperature Stability
The technical ceramic possess excellent high-temperature stability. The ceramic can withstand temperatures up to 1400°C without significant degradation. This means it can be used as furnace components such as thermocouple protection tubes, radiant tubes, and furnace rollers.
Wear Resistance
Aluminium smelters and foundries often look for materials that can withstand long-term wear. Sialon possess excellent wear resistance properties. In the manufacturing process the ceramic can appear in various forms such as pump impellers, bearing balls, and liners. Sialon ceramic wear-resistant components offer excellent wear and corrosion resistance making it suitable for use in harsh environments such as chemical processing, mining, and oil and gas industries.
Corrosion and thermal shock resistance
The industrial ceramic is highly resistant to corrosion, making it the perfect candidate for using in aluminium alloys. The ceramic is often used in the manufacturing of furnace components, such as thermocouple protection tubes, where they offer excellent resistance to corrosion from molten aluminium.
Aluminium foundries require materials that can withstand rapid changes in temperature without cracking. Sialon ceramics possess excellent thermal shock resistance properties. It can withstand rapid changes in temperature without cracking.
The ceramic possess excellent properties such as high-temperature stability, wear and corrosion resistance, thermal shock resistance, and chemical stability. Sialon finds extensive use in a variety of applications, including furnace components, wear-resistant components. The use of Sialon ceramics in the aluminium industry can lead to longer component life, reduced downtime, and increased efficiency, making it an ideal choice for the demanding applications in the aluminium industry.