Refractory / High Temperature Materials Oxide Ceramics

Alumina ceramic furnace tubes are used to contain and protect heating elements and samples processed in the furnace. In addition, they are used to control the atmosphere within the furnace by preventing air from entering or leaving the furnace. [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; HV / Electrical
• Shape / Form: Tube

• Oxide Type: Alumina
• Max Use Temperature: 1500 to 1650

Alumina ceramic plates are well-known for their hardness, wear resistance, and electrical insulation. These plates have numerous applications across various sectors, including the electronics, metallurgy, medical, semiconductor, and armor systems. Unipretec offers ceramic plates with different... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; HV / Electrical; Wear resistant parts or tooling
• Shape / Form: Plate / Board

• Oxide Type: Alumina
• Max Use Temperature: 1500 to 1650

Alumina ceramic rods have high hardness and excellent wear resistance, making them less susceptible to damage from friction or usage. Additionally, they can maintain their superior mechanical and insulating properties at high temperatures, and are chemically inert, meaning they are not corroded by... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; HV / Electrical; Wear resistant parts or tooling
• Shape / Form: Immersion Tube or Sheath

• Oxide Type: Alumina
• Max Use Temperature: 1500 to 1650

Alumina ceramic tubes are made of high-purity alumina materials that have exceptional characteristics like high temperature resistance, wear resistance, and chemical stability, etc., and are extensively utilized in a wide range of industries. [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; HV / Electrical
• Shape / Form: Tube

• Oxide Type: Alumina
• Max Use Temperature: 1500 to 1650

Alumina crucibles are used in laboratories as containers for chemical compounds or metal refractories at extremely high temperatures. Their high-temperature stability, chemical inertness, and mechanical strength have made them essential vessels for use in various industries, laboratory research, and... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant
• Max Use Temperature: 1500 to 1650

• Oxide Type: Alumina
• Density: 3.6 to 3.95

Unipretec manufactures alumina rod with aluminium oxide purity of 95%, 99%, and 99.8%. Due to their remarkable characteristics, such as their high-temperature resistance, mechanical strength, electrical insulation, and chemical inertness, alumina rods are an essential component in a variety of... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; HV / Electrical; Wear resistant parts or tooling
• Shape / Form: Immersion Tube or Sheath

• Oxide Type: Alumina
• Max Use Temperature: 1500 to 1650

Alumina sheet is manufactured of 95%, 96%, 99%, or 99.8% high-purity alumina. It has a wide range of advantageous properties, making it a versatile ceramic material for a variety of industrial applications. Due to their resistance to high temperatures, superior mechanical strength, electrical... [See More]

• Applications: Refractory or High Temperature Insulation; Optical Grade; Chemical or material processing; Corrosion resistant; Electronics or semiconductors; HV / Electrical
• Shape / Form: Plate / Board

• Oxide Type: Alumina
• Max Use Temperature: 1500 to 1650

Alumina tube is a non-porous ceramic tube that is formed of 95%, 99%, or 99.8% alumna material. As a result of its remarkable thermal, mechanical, and chemical characteristics, it is a preferred option in various sectors. Its resistance to high temperatures, abrasion, and corrosion, as well as its... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Corrosion resistant; HV / Electrical
• Shape / Form: Tube

• Oxide Type: Alumina
• Max Use Temperature: 1500 to 1650

Aluminum oxide ceramic is a high-performance ceramic material, also known as alumina ceramic material. Composed of high-purity alumina powder, this non-metallic material is manufactured via pressing, molding, sintering, and other processes. According to the alumina content, it is classified as 92... [See More]

• Applications: Refractory or High Temperature Insulation; Bioceramics; Chemical or material processing; Corrosion resistant; Electronics or semiconductors; HV / Electrical
• Max Use Temperature: 1200 to 1650

• Oxide Type: Alumina
• Density: 3.6 to 3.95

Insulators are materials or devices that prevent the flow of electrical current or transfer of heat. As for boron nitride ceramic, it possesses a number of properties including high dielectric strength, low dielectric loss, low thermal conductivity, high thermal stability, chemical inertness,... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Corrosion resistant; HV / Electrical
• Density: 1.55 to 3

• Max Use Temperature: 900 to 2000
• Performance Features: Sintered / Fired; Machinable ceramic; Soft

Silicon nitride tubes have outstanding mechanical and thermal characteristics, as well as excellent chemical stability, allowing them to withstand demanding working environments where metal or polymer materials are unbearable. [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; HV / Electrical; Wear resistant parts or tooling
• Max Use Temperature: 1000 to 1200

• Shape / Form: Tube
• Density: 3.2 to 3.3

Zirconia ball, also known as zirconium oxide ball, is a kind of ceramic ball made of zirconium dioxide (ZrO2) material. Zirconia is a material that is incredibly durable and wear-resistant, making it perfect for applications that need great performance and long service life. Zirconia balls are... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant
• Density: 5.95 to 6

• Oxide Type: Zirconia
• Performance Features: Sintered / Fired; Hard

OMEGATITE ®650 is an alloy of silicon nitride and aluminum oxide. This superior refractory material has the combined properties of silicon nitride (high strength, hardness, fracture toughness, and low thermal expansion) and aluminum oxide (corrosion resistance, chemically inert, high temperature... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Abrasion Resistant; Foundry / Metal Processing; Corrosion resistant; Molten Metal Measuring
• Shape / Form: Tube

• Oxide Type: Alumina; Mullite (optional feature)
• Length: 5.91 to 23.62

Accuratus maintains an inventory of standard extruded and cast aluminum oxide, mullite and sialon shapes for fast delivery requirements. These are low cost, quality rods and tubes that can be quickly cut to precision lengths. (See Mullite Sizes, Aluminum Oxide Sizes and Sialon Sizes). Accuratus will... [See More]

• Applications: Refractory or High Temperature Insulation; Abrasion Resistant; Armor / Ballistic Protection; Electronics or semiconductors; HV / Electrical
• Composition or ASTM/EN Cement Type : 94% - 99.5% Al2O3

• Oxide Type: Alumina
• Shape / Form: Rod

Boron nitride is offered in several grades each with unique materal properties. All however, are readily machinable; much like green (not sintered), alumina BN allows drilling, tapping, treads etc. without the need for diamond tools. Hot-Pressed Boron Nitride Shapes Hot-pressed BN is compacted at... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Wear resistant parts or tooling
• Max Use Temperature: 850 to 2000

• Shape / Form: Custom Shape
• Thermal Conductivity: 11 to 130

High fired strength, dense ceramics [See More]

• Applications: Refractory or High Temperature Insulation; Abrasives, ceramics or glass manufacturing; Chemical or material processing; Corrosion resistant; HV / Electrical; Fiberoptics, Radiant Heaters, Temp Probe
• Max Use Temperature: 1649

• Oxide Type: Alumina
• CTE: 7.20E6