SiAlON
Revolutionizing the world with SiAlON
Future
Changing the future with SiAlON
Leveraging the unique properties of SiAlON helps us to achieve even longer product life spans than before. SiAlON’s key features, such as its lightweight structure and hardness, help improve its maintenance efficiency. What’s more, SiAlON’s green manufacturing method known as "combustion synthesis" completely eliminates CO2 emissions, paving the way for a new future.
Benefits
Generation of SiAlON powder
through combustion synthesis
Synthesis of SiAlON Powder
SiAlON
SiAlON, a type of nitride ceramic, has a strong and stable covalent bond structure. It boasts excellent hardness, wear resistance, mechanical strength under high temperatures, and high thermal resistance. Furthermore, SiAlON outperforms silicon nitride (Si3N4), a well-known structural ceramic, in terms of heat resistance, mechanical strength at high temperatures, thermal shock resistance, and wear resistance.
This process uses the heat generated during chemical reactions to synthesize inorganic compounds. By utilizing the heat propagation reaction during the combustion process, if the reaction system has a negative enthalpy change (-ΔH > 0, exothermic reaction), the synthesis can self-propagate by adding only a small amount of initial activation energy, enabling the synthesis of the material. Therefore, we can synthesize materials in a short time and with low energy consumption, without the need for large-scale variable temperature equipment.
Achieving high-quality ball performance through the compressive strength and fracture toughness of SiAlON
Ceramic bearing balls are primarily manufactured using silicon nitride. When comparing bearing balls made from SiAlON to those made from silicon nitride, the former were ranked higher on key requirements such as compressive strength and fracture toughness.
Applicable to fields with high future demand
Wind power generation
Wind power generation systems use bearings in various components, such as the main shaft, gearbox, speed increaser, and generator. Additionally, since these systems are installed at high altitudes, maintenance is a challenge, and bearings are required to ensure reliability and long lifespans of over 20 years.
Automobiles
Currently, engine-powered automobiles use around 100 to 150 bearings. Even with a future shift to electric vehicles, we can still expect to use a significant number of bearings.
Manufacturing
One example of machinery used to manufacture materials is the rolling machine, which shapes steel. This machine needs to be resistant to wear under high temperatures.
Applications of SiAlON powder
Heat-resistant alloy machinery components
Wear-resistant components
Refractory components
SiAlON enables the manufacturing of products with properties such as excellent hardness, wear resistance, and heat resistance
Manufacturing SiAlON powder through combustion synthesis
SiAlON can be synthesized through combustion synthesis. Compared to conventional manufacturing methods, this approach reduces production costs.
Customizable grinding particle size
SiAlON can be customized to the optimal particle size for different products such as bearing balls, media balls, and cutting tools or jigs, depending on the application.
