Silicon carbide (SiC) is one of the hardest materials on Earth, maintaining its hardness even at high temperatures. Furthermore, SiC offers excellent wear resistance, flexural strength, chemical stability and thermal conductivity properties.
Morgan’s Purebide grades are suitable for many applications due to their excellent wear and corrosion resistance, making them an excellent choice for hardface pair sealing components.
Ballistic Armour Plates
Body armor depends on plates that stop bullets and prevent injuries; their strength and ballistic resistance must meet rigorous testing standards to remain in use.
NIJ certification involves firing projectiles of various velocities at various velocities to test how effectively a plate stops them, so it is vital that these tests are carried out appropriately.
This invention pertains to a method for producing reaction-bonded silicon carbide (RBSC) ceramics for use in armour. A fibrous carbon cloth or armor preform containing silicon carbide particulate is chemically converted by contact with a molten infiltrant, creating layers which reduce back face signature depth by 50 percent compared with commercially available solid-state sintered silicon carbide (SSIC), while improving energy absorption capabilities during SA testing.
Thermocouple Protection Tubes
Silicon carbide ceramics are among the hardest and heat-resistant of fine ceramics, remaining strong even at elevated temperatures – ideal for mechanical seals and high performance pump components. Furthermore, silicon carbide electrically semi-conductors offer electrical semi-conductivity as well as superior chemical corrosion and abrasion resistance.
Ceramic protection tubes are used to shield noble metal thermocouples from harsh environments and direct flame impingement, often made of alumina with thick wall thickness to extend their lives and increase protection. Since thermocouples are susceptible to oxidation and abrasion, we also provide sintered alpha (SA) SiC protection tubes which can withstand pressures up to 4500 psig while offering maximum strength through their fine grain structure and impervious to gases at pressures up to 4500 psig – two solutions ideal for protecting delicate thermocouples from harsh environments and direct flame impingement.
Brake Discs & Pads
Carbon-reinforced ceramic bonded with silicon carbide pads exhibit significant mechanical strength, superior frictional properties and an elevated thermal loading capacity, combined with reduced wear rates compared to organically bonded mass-produced pads that have lower coefficients of friction and more wear rates.
Carbon-ceramic brake discs are popularly utilized on high-performance and luxury vehicles, providing benefits in weight reduction, heat resistance, longevity and design flexibility. Available as either perforated or solid plate designs; usually solid plate is more resilient in cold environments. A machining process on each disc can eliminate thickness variation caused by hub-face non-perpendicularity as well as minor surface damages to ensure its functionality in cold climate environments.
Engine Components
Sintered silicon carbide mechanical seals are known for their exceptional sliding resistance against abrasive and corrosive media as well as high temperature resilience, making it the ideal material to prevent leakage of fluids or gases in hostile environments from pumps. Their hardness and strength also make them great insulators against heat damage from environmental conditions.
Material is created through fine granulation powder processing and pressing blanks into them, before being sinterd in an inert atmosphere at 1950-2100degC for solidification into ceramic material.
Pressureless sintering produces more dense and uniform products with improved flexural strength and resistance to acid and alkali environments than reaction sintering, making it particularly suitable for engine components and abrasive industrial machine parts production.
Aircraft Turbines & Satellite Subsystems
Sintered silicon carbide stands out for its exceptional hardness, strength, wear resistance and corrosion resistance – qualities which make it the go-to material in industrial applications. Our sintered silicone carbide thermocouple protection tubes enable accurate temperature readings in harsh conditions by protecting thermocouples from gasses such as hydrogen chloride or high temperatures to extend sensor lifespan and ensure accurate readings.
To create this durable ceramic material, fine silica powder is mixed with non-oxide binder and then formed either through extrusion (tubes) or cold isostatic pressing (plates and blocks). After shaping, these pieces are sintered at 19502100 degC in an inert gas atmosphere using either reaction or pressureless sintering techniques – enabling us to achieve very high product densities.
Vehicle & Personal Protection Systems
Modern vehicle crews face numerous threats in both urban and open battlespace environments, including ballistic, electronic and RCIED threats that put their crews at serious risk of injury or even death.
Sintering is a high-temperature process used to densify powdered materials into solids using heat and pressure, creating ceramics and metals with unique characteristics designed to meet the rigorous demands of demanding applications.
Pressless sintering silicon carbide is produced from pure silicon carbide powder mixed with oxide-free sintering aids in an inert gas environment at temperatures exceeding the eutectic point of yttrium aluminium garnet (YAG). This process can also be utilized with various binder types to produce products with various shapes.
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