Typical Applications
Wire and thread guides
High temperature electrical insulators
High voltage insulators
Seal rings
Furnace protection tube
Electronic substrates
Ballistic armor
Abrasion resistant tube and elbow liners
Thermometry sensors
Crucible
Laboratory instrument tubes and sample holders
Grinding media
Main Properties
Wear-resistant
Excellent dielectric
Refractory
Resists strong acid and alkali attack
Good thermal conductivity
Excellent size and shape capability
High strength and stiffness
Typical Applications
Oxygen sensors
Thread and wire guides
Precision ball valve balls and seats
High density ball and pebble mill grinding media
Rollers and guides for metal tube forming
Hot metal extrusion dies
Deep well down-hole valves and seats
Powder compacting dies
Marine pump seals and shaft guides
Scissors, knifes, slitters, fixtures, tweezers,
Bearing sleeves and valves
Main Properties
Working temperatures up to 2400 C
High density
Wear resistance
High fracture toughness
High hardness
Low thermal conductivity (20% that of alumina)
Chemicalinertness
Resistance to molten metals
lonic electrical conduction
Typical Applications
Fixed and moving turbine components
Seals, bearings
Ball valve parts
Heat exchangers
Suction box covers
Hot gas flow liners
Semiconductor process equipment
Main properties
Low densityHigh strength
High hardness
High elastic modulus
Low thermal expansion
High thermal conductivity
Excellent thermal shock resistance
Superior chemical inertness
Typical Applications
Rotating bearing balls and rollers
Cutting tools
Engine moving parts — valves, turbocharger rotors
Engine wear parts — cam followers, tappet shims
Turbine blades, vanes, buckets
Metal tube forming rolls and dies
Precision shafts and axles in high wear environments
Weld positioning
Main Properties
High strength over a wide temperature range
Excellent fracture toughness
High hardness
Outstanding wear resistance, both impinging and frictional modes
Good thermal shock resistance
Good chemical resistance
Boron Nitride (BN)
Boron nitride is a white and low porosity solid material. Due to the platy hexagonal
crystals and their orientation during thehot press consolidation. the material is anisotropic in its electrical and mechanical properties, It is easilv machined intocomplex shapes using standard carbide tooling.
Typical Application
Electronic parts - heat sinks, substrates, coil forms, prototypes
Boron doping wafers in silicon semiconductor processing
Vacuum melting crucibles
CVD crucibles
Microcircuit packaging
Sputtering targets
High precision sealing, brazing, and metallizing fixtures
Microwave tubes
Horizontal caster break rings
Low friction seals
Plasma arc insulators
High temperature furnace fixtures and supports
Main Properties
High thermal conductivity
Low thermal expansion
Good thermal shock resistance
High electrical resistance
Easily machined
Low dielectric constant and loss tangent
Microwave transparency
Chemically inert
Typical Applications
Casting spout
Casting pipeline
High temperature lamp envelopes
Temperature insensitive optical component supports
Lenses, mirrors in highly variable temperature regimes
Microwave and millimeter wave components
Aeronautical radar windows
Main Properties
Near zero thermal expansion
Exceptionally good thermal shock resistance
Very good chemical inertness
Can be lapped and polished to fine finishes
Low dielectric constant
Low dielectric loss
Good UV transparency
Typical Application
Electrical spacers in vacuum systems
Thermal insulators in heated or cooled assemblies
High intensity lamp reflectors
Crystal supports
Laser cavity components
Microcircuit and photonics packaging
Key Properties
Low thermal conductivityLow dielectric constant
High electrical resistance
Excellent resistance to high voltage
Easily machined
Hermetic with no post-machining firing required