CG MATERIAL
Oxide Bonded Silicon Carbide Tube
Oxide Bonded Silicon Carbide Tube
Oxide Bonded Silicon Carbide Tube (OBSIC Tube) is a high-performance ceramic material that is widely used in industrial applications that require resistance to high temperatures and harsh chemical environments. It is made by mixing silicon carbide powder with a small amount of silica, which acts as a bonding agent, and then firing the mixture at high temperatures.
OBSIC Tube has excellent mechanical strength, thermal stability, and chemical resistance, making it suitable for use in harsh environments. Its high temperature resistance allows it to withstand temperatures up to 1700°C, making it ideal for use in high-temperature industrial processes.
OBSIC Tube is also highly resistant to chemical attack, making it suitable for use in corrosive environments. It is often used in chemical processing plants and other industrial applications where resistance to acids, alkalis, and other chemicals is important.
OBSIC Tube is available in a range of sizes and lengths, making it suitable for use in a variety of applications. It can be used as a protective tube for temperature sensors, as a thermocouple protection sheath, as well as in the production of ceramic components and parts.
Overall, Oxide Bonded Silicon Carbide Tube (OBSIC Tube) is a high-performance ceramic material that offers excellent mechanical strength, thermal stability, and chemical resistance. Its unique properties make it a popular choice for use in a wide range of industrial applications, where durability and reliability are critical.
Silicon Carbide Ceramics Properties
| Compound Formula | SiC |
| Molecular Weight | 40.1 |
| Appearance | Black |
| Melting Point | 2,730° C (4,946° F) (decomposes) |
| Density | 3.0 to 3.2 g/cm3 |
| Electrical Resistivity | 1 to 4 10x Ω-m |
| Poisson's Ratio | 0.15 to 0.21 |
| Specific Heat | 670 to 1180 J/kg-K |
Silicon Carbide Ceramics Specification
| CAS#: 409-21-2, Not Hazardous | |||
| Powder, F.W. 40.10, m.p. 2700 °C, Spec. Gravity 3.217 gm/cm3 | |||
| Item No. | Description | Purity | Lot Size |
| CB14-85 | Silicon Carbide Powder Particle Size:18, 30, 40 or 200 mesh |
> 85 % F.C. < 2.5%, Fe2O3 < 2%, Al2O3 < 1.2% |
Customize |
| CB14-90 | Silicon Carbide Powder Particle Size:18, 30, 40 or 200 mesh |
> 90 % F.C. < 1.5%, Fe2O3 < 1.2% |
Customize |
| CB14-98 | Silicon Carbide Powder Particle Size:18, 30, 40 or 200 mesh |
> 98 % F.C. < 0.6%, Fe2O3 < 0.7% |
Customize |
Silicon Carbide Ceramics Applications
Until the invention of boron carbide in 1929, silicon carbide was the hardest synthetic material known. It has a Mohs hardness rating of 9, approaching that of a diamond. In addition, SiC crystal has fracture characteristics that make them extremely useful in grinding wheels and in abrasive paper and cloth products.
Its high thermal conductivity, together with its high-temperature strength, low thermal expansion, and resistance to chemical reaction and thermal shock, makes silicon carbide valuable in the manufacture of high-temperature bricks and other refractories.
SiC ceramic is also classed as a semiconductor, having an electrical conductivity between that of metals and insulating materials. This property, in combination with its thermal properties, makes SiC a promising substitute for traditional semiconductors such as silicon in high-temperature applications.
Oxide Bonded Silicon Carbide Tube Specifications
| Item | Unit | Typical Values |
| Apparent Porosity | % | ≤16.0 |
| Bulk Density | g/cm³ | ≥2.6 |
| Compressive Strength at Room Temperature | MPa | ≥180.0 |
| Bending Strength at Room Temperature | MPa | ≥45.0 |
| Bending Strength at 1400℃ | MPa | ≥55.0 |
| Thermal Conductivity at 650℃ | W/m•k | 28.0 |
| Thermal Conductivity at 1000℃ | W/m•k | 26.0 |
| Thermal Diffusivity at 650℃ | ㎝²/s | 0.064 |
| Thermal Diffusivity at 1000℃ | ㎝²/s | 0.053 |
| Linear Expansion α30-1000 | – | 4.02 x 10-6(k-1) |
| Linear Expansion α30-1100 | – | 4.06 x 10-6(k-1) |
Oxide Bonded Silicon Carbide Tube Features
-Good thermal conductivity
-High thermal stability
-No deformation
-No softening
-No loose expansion under high temperature
Oxide Bonded Silicon Carbide Tube Applications
Oxide Bonded Silicon Carbide is suitable for all kinds of building ceramic kilns, daily ceramic kilns, sanitary ceramic kilns, grinding wheel kilns, smoke separator plates, push plates, shed plates, and brackets. It is used in coal-burning gas, fuel oil, and other industrial kilns. It can also be used as lining material and metallurgical industry tank material.
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