CoorsTek Ceramic Polycrystalline Tubes and Rods

Utilizing core extrusion and ceramic injection molding technologies developed over decades, CoorsTek manufactures high-quality alumina protection tubes. Using a special drying process after extrusion enables us to produce tubes and rods with the highest accuracy in radial dimensions. By combining high purity alumina with an innovative sintering method it is possible to create highly dense, pore free products with sapphire like properties at a fraction of the cost. APPLICATIONS Polycrystalline sapphire caps are applicable in aggressive environments and/or at high temperatures where standard ceramics or metal tubes do not meet material sustainability requirements. Application areas include: Chemistry labs Glass Oil refineries Other laboratories CoorsTek polycrystalline sapphire caps are competitive with other sapphire tubes and are a reliable substitution for ceramic tubes that are not resistant against chemical diffusion, offering much higher durability for thermocouple protection. Even small diameter tubes are strong and highly temperature resistant. Sets can consist of an outer one-sided sealed protective tube and one or more inner capillaries used for electrical insulation of branches of the thermocouple.