Reaction Bonded Silicon Carbide is an extremely durable ceramic material, boasting excellent wear resistance, chemical compatibility, and thermal shock resistance properties. RBSiC can be found in pipe liners, flow control chokes, and larger wear components for mining applications. Reaction Bonded Silicon Carbide is produced by infiltrating a porous carbon preform with liquid silicon. This allows for the mass-production of dense net size parts at reduced cost.
Silicon carbide (SiC) is a lightweight ceramic material known for its strength and hardness. It resists corrosion well and offers excellent thermal conductivity, making it suitable for various applications such as pipe lining and flow control chokes as well as large wear components in mining or other industries. SiC comes in various shapes and sizes that can be manufactured into components for various uses – it’s even used to protect pipeline liners against erosion! SiC is also widely used as wear parts.
RBSiC is produced by infiltrating molten silicon into a porous carbon or graphite preform, where it reacts with carbon to create silicon carbide. While sintered silicon carbide has higher hardness and strength ratings, RBSiC production costs significantly less and has greater permeability to absorb gases and liquids more readily.
One way of producing RBSiC is using either phenol resin or furfuryl alcohol resin as the bonding agent, to evenly distribute fused silicon across the surface of a preform. This prevents lumping together of fused silicon particles and increases flexural strength of the material.
Another method for producing RBSiC involves infiltrating silicon powder into carbon preforms. However, this form has low flexural strength and should only be used in low temperature applications.
Reaction Bonded Silicon Carbide is an exceptional material suitable for many different uses, thanks to its strength and ductility compared to sintered silicon carbide. Furthermore, its shapeability means it can easily fit into complex designs while resisting high temperatures and corrosion damage.
Reaction bonded silicon carbide’s (RBSC) bending strength far surpasses that of its conventional nitride-bonded sibling due to its much lower density, making it easier for it to bend. Furthermore, its good corrosion and wear resistance makes RBSC an excellent material choice for many different applications.
When manufacturing RBSCs, a mixture of phenol resin or furfuryl alcohol with silica powder serves as the bonding agent. After being mixed evenly through strong stirring, milling, or supersonic processing it is then dropped into a distilled water solution for processing before drying and being cut into desired shapes using dies or molding molds.
Once granules have been assembled, they are heat processed in a reaction sintering furnace at temperatures higher than their melting points for silicon to infiltrate and fused it into the silicon carbide/carbon preform during its forming process – creating a framework structure to increase bending strength of the finished product.
In order to achieve optimal mechanical properties of reaction-bonded silicon carbide (RB-SiC) at room temperature, fiber reinforcement may often be necessary. To demonstrate this point, measurements were conducted on fiber reinforced RB-SiC composites made with 40 volume fraction of 140 micron diameter chemically vapor deposited SiC particles aligned in alignment. Tensile and bend strengths of such composites proved superior compared with unreinforced composites.
Reaction Bonded Silicon Carbide is manufactured by infiltrating molten silicon into porous carbon or graphite materials that have been packed into the desired shape of your product, where it reacts and forms SiC. RB-SiC tends to be less costly and offers superior wear resistance compared to direct sintered SiC; its lower hardness provides better wear resistance as well as being resistant to high temperatures while maintaining a low coefficient of thermal expansion that allows it to retain hardness and strength even with rapid temperature changes.
RB-SiC ceramic has one of the highest tensile strengths among ceramics, comparable to that of steel. Additionally, its corrosion and abrasion resistance properties make it suitable for pump parts, bearings, mechanical seal faces and larger wear components used in mining or other industrial settings. With an ideal low coefficient of thermal expansion that protects it against shocks while withstanding wear-and-tear wear as well as acid attacks RB-SiC is often specified for pump components used under high temperature environments as well as bearings bearings used under high temperature conditions – often used on pump parts such as bearings which withstand high temperature environments while still offering corrosion and wear resistant properties similar to steel. It can withstand wear as well as acid attacks which makes it suitable for wear components used under high temperature environments as well.
Reaction Bonded Silicon Carbide is a tough material with superior strength, high resistance to corrosion and wear, and excellent heat and dimensional stability – ideal for applications that demand heat resistance and stability, such as medical device manufacturing. Furthermore, this versatile material can be produced into an assortment of shapes and sizes. Traditional methods for producing Reaction Bonded Silicon Carbide involve infiltrating molten silicon into porous carbon that has been packed into a desired part shape and reacting with it to form reaction bonded silicon carbide. This process can also be modified to create complex structures like cylinders, tubes, bellows, and flow control chokes. This technology holds immense potential to reduce production costs and open up a host of new applications. The resultant products are stronger and lighter than sintered silicon carbide while offering superior thermal conductivity, resistance to oxidation, corrosion and other forms of damage.