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  • Mullite (3Al2O3-2Si02 or Al6Si2O13)
    usually has an off-white or tan color. Depending on the purity and density, mullite can have superior dielectric and thermal shock properties and resistance to slag and silicate refractory bonds. Mullite is used for refractory tubes, industrial crucibles, analytical labware, dielectric substrates
  • Carbon
    a protective coating must be used in reducing or vacuum atmospheres to prevent oxidation at elevated temperatures. Depending on the purity, density and crystal structure carbon is used for refractory linings, industrial crucibles, arc furnace electrodes, analytical labware, composites, refractory cements
  • Zirconia Toughened Alumina (ZTA)
    and density, zirconia toughened alumina is used for refractory tubes, industrial crucibles, analytical labware, wear components, refractory cements and abrasives.
  • Alumina
    versatility and relatively low cost. Depending on its purity and density, alumina is used to make refractory tubes, industrial crucibles, analytical labware, dielectric substrates, wear components, refractory cements, and abrasives. Alumina's main drawback that it has relatively poor thermal shock
  • Boron Nitride
    . Depending on the purity, density and crystal structure, boron nitride is used for refractory linings, industrial crucibles, arc furnace electrodes, analytical labware, composites, refractory cements and super abrasives. Hexagonal BN is structurally weak and used as a high temperature lubricant
  • Zirconia (ZrO2)
    on the purity and density zirconia is used for refractory tubes, industrial crucibles, analytical labware, sensors, wear components, refractory cements, thermocouple protection tubes, furnace muffles, liners and high temperature heating element supports.
  • Silicon Carbide (SiC)
    silicon carbide can be transparent (Moissanite).  Silicon carbide has found wide application due to its versatility and a relatively low raw material cost. Depending on the purity and density SiC is used for refractory tubes, industrial crucibles, wafer semi-insulating substrates, wear components
  • Cold Isostatic Pressing (CIP)
    Cold isostatic pressing (CIP) uses an oil-water or air mixture pressurized up to 100,000 psi. Flexible rubber or plastic tooling and steel mandrels are used in CIPing. CIP applications include refractory nozzles, blocks, and crucibles; cemented carbides, isotropic graphite, ceramic insulators

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