Fired Refractory Crucibles

Morgan Advanced Materials manufacture market leading refractory crucibles, hot top boxes, tubes, nozzles, distribution boxes, and shapes for a range of crucial duties in vacuum induction melting and other heat intensive applications greater than 1649 °C (3000 °F) and market as Morsil®, Cerox® and Valcor®.

Morgan Advanced Materials’ fired refractory crucibles, hot top boxes, tubes, distribution boxes, nozzles and shapes are made using a variety of refractory materials and manufacturing processes. High alumina, nitride bonded silicon carbide, silicon carbide, and fused silica formulations allow the manufacture of an optimum solution for durability and reliability in each customer application, even under the toughest conditions.

The thixotropical casting manufacturing process used by Morgan Advanced Materials allows for crucibles and shapes to be made to precise customer stipulations. Thixotropic casting uses a dispersion agent, which allows the mix to flow when vibrated without the need for high water content. These manufacturing methods, integrated with precisely controlled firing and 100% product inspection, create high-quality components suited to the most difficult of high-temperature environments. The crucibles made by Morgan Advanced Materials are available in a range of sizes from 136 kg up to 2.7 mt (300 lb – 2000 lbs).

Morsil nitride-bonded silicon carbide refractory shapes have superior thermal shock, high thermal conductivity and oxidation resistance. They also have higher hot strength than oxide bonded silicon carbide refractories. This makes them a perfect choice as kiln furniture. Their non-wetting property makes them ideal for use in non-ferrous metal contact areas.

Key features of the fired refractories range are:

  • High thermal conductivity and refractoriness, outstanding abrasion/erosion resistance, and low thermal expansion owing to alpha silicon carbide crystals
  • Wide selection of bonding options guarantees properties can be matched to application requirements, such as high operating temperatures, resistance to corrosion or thermal shock, strength
  • Tight tolerance capability
  • Low gas permeability

Morgan Advanced Materials’ fired refractory crucibles, hot top boxes, distribution boxes, nozzles, tubes, and shapes are used widely in the vacuum induction melting of iron and steel, super alloys and aluminum processing applications. Morgan Advanced Materials’ Morsil and Cerox products are usually used in these melting applications:

  • Furnace spouts, hot tops, distribution boxes, and metamics - metal-ceramic composite thermocouple sheaths
  • Crucibles, tundishes and launder systems
  • Muffles, saggars, ladle liners, sealed quench furnace muffle assemblies
  • Consumable glass-contact refractories
  • Kiln furniture

Morgan Advanced Materials offers ideal solutions for particular customer challenges.

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