nitride bonded silicon carbide

Nitride Bonded Silicon Carbide

Nitride-bonded silicon carbide boasts excellent wear and corrosion resistance at elevated temperatures, as well as superior fracture toughness and thermal shock resistance.

Wear rates associated with using special steel types in light and medium soil environments is significantly reduced when compared with those associated with using boron-containing steels in heavy soil conditions.

Excellent Wear Resistance

Nitride-bonded silicon carbide offers exceptional wear resistance in light soil applications. Furthermore, this material has greater impact resistance than steel commonly used for these uses such as kiln furniture and liners.

Reaction bonded silicon carbide (RB SiC) can be cast into intricate shapes with desirable refractory and chemical properties, including erosion resistance and high strength at elevated temperatures to withstand abrasive attacks like impact wear. It offers corrosion protection as well as highly functional surface properties.

Refractory material with excellent oxidation resistance, perfect for aluminium reduction cell sidewall blocks. Also, used in launders, degassing rotors and burner nozzles for extended service life and better abrasion resistance. With higher flexural strength than RSiC at up to 1550 degrees Celcius. As well as excellent corrosion resistance towards aluminum, zinc copper magnesium manufacturing processes. Protection tubes used during rising tubes manufacturing processes.

Excellent Corrosion Resistance

Nitride-bonded silicon carbide is highly resistant to corrosion from most acids and alkalis, and remains strong and tough even under heavy loads and impacts.

Corrosion resistance is enhanced through the creation of an oxide barrier that separates substrate from attack species, and replenished either through diffusion through nitride layers or, if silica deposits are sacrificed as sources of reactive oxygen, through dissolving into attack species to provide reactive oxygen sources.

Nitride-bonded silicon carbide stands out for its superior erosion and corrosion resistance, combined with Blasch's shape-making capabilities, to make it suitable for various applications in coal, mineral and paper industries; chemical plants (pumps and valves); environments with elevated temperatures; as its load carrying capacities surpass those of oxide-bonded products.

Excellent Thermal Shock Resistance

Nitride-bonded silicon carbide boasts exceptional thermal shock resistance and maintains strong bonding strength at elevated temperatures, making it suitable for applications in aluminum furnace linings, kiln furniture production facilities, waste incineration plants and more.

Nitride-bonded silicon carbide (NbSC) is an extremely porous ceramic material with superior intrinsic oxidation resistance to sintered saline slag (SSS). Thermal oxidation testing of reaction-sintered Si3N4 reinforced with SiC has been studied [1].

Results indicate that the oxidation behavior of NBSIC is determined by microstructure and chemistry at the interface between its matrix (RBSN) and reinforcement particles such as SiC. Oxidation of RBSN with reinforcement follows a diffusion controlled two stage process [2]

Nitride-bonded silicon carbide (NBSIC) is an industrial-grade cast refractory designed for severe service conditions. NBSIC can be found as abrasion resistant cyclone liners in coal and mineral processing plants, as well as corrosion-resistant components used in slurry pumps.

Excellent Chemical Resistance

Nitride-bonded silicon carbide can withstand a wide variety of chemicals, including molten salts, acid solutions and halogens. Furthermore, this material has excellent oxidation and thermal shock resistance properties.

The study revealed that NB SiC had superior wear resistance in light and medium soil conditions than common steel types used for metal-mineral tribological systems, while being capable of withstanding most of the tested abrasive masses without breaking.

Reaction Bonded Silicon Carbide (RBSC) is formed by reacting a mixture of silicon carbide powder and nitrogen-containing compounds in an electric furnace, yielding dense and mechanically strong composite material with excellent load-carrying capacity at elevated temperatures, excellent resistance to oxidation, and superior thermal shock resistance. Furthermore, its flexible nature enables its casting into complex shapes that would otherwise be difficult to form with other refractory materials; making RBSC ideal for use as tribological components such as cyclone liners.