Nonporous Alumina Ceramic Powder
- Color: White
- Temperature Range: 0° F to 3,630° F
- Fabrication: See table
Alumina ceramics withstand higher temperatures than any other ceramic and are highly chemical resistant. This powder is high purity, so it’s inert even at high temperatures. Because alumina is ultra hard, it can be used in applications that require superior strength. It is also wear resistant, making it suitable for high-wear applications. Both thermally and electrically insulating, alumina can also be used in high-temperature and high-power electrical applications. Finished products made from alumina powder are nonporous, so they will seal out air and gas. Powder is often used in casting processes. Add it to slurries to create custom parts and tools such as crucibles, cutting tools, and laboratory ware. Alumina powder also is often used as a friction material, such as in brake linings.
Choose a particle size based on the application of your finished piece. Finer powders can be processed into finished pieces that will be harder, stronger, and more wear-resistant than those made with coarse grains. They may also have a finer finish. Parts made with coarse grain powders can be processed into pieces that are more porous and thermally shock-resistant than pieces made with finer grains. Mixing sizes can combine these properties.
99.3% aluminum oxide powder is slightly more reactive than 99.5% aluminum oxide powder because it’s less pure. It’s commonly used for polishing, lapping, and buffing.
99.5% aluminum oxide powder is more pure than 99.3% aluminum oxide, so it’s less reactive. It’s often used in the ceramic, glass, and foundry industries.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
5 lbs. Pail | 10 lbs. Pail | 25 lbs. Pail | ||||||
|---|---|---|---|---|---|---|---|---|
| Particle Size | Particle Mesh Size  | Fabrication | Each | Each | Each | |||
99.3% Aluminum Oxide | ||||||||
Fine Grit | ||||||||
| 4-7 microns | __ | Heat Treated | 00000000 | 000000 | 00000000 | 000000 | 00000000 | 000000 |
| 70 microns | __ | Heat Treated | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 00000 |
99.5% Aluminum Oxide | ||||||||
Fine Grit | ||||||||
| 45 microns | -325 | __ | 00000000 | 00000 | 00000000 | 00000 | 000000 | 00 |
| 150 microns | -100 | __ | 00000000 | 00000 | 00000000 | 00000 | 000000 | 00 |
Medium Grit | ||||||||
| 300 microns | -48 | __ | 00000000 | 00000 | 00000000 | 00000 | 000000 | 00 |
| 300-600 microns | 25-40 | __ | 00000000 | 00000 | 00000000 | 00000 | 000000 | 00 |
Coarse Grit | ||||||||
| 600-1400 microns | 12-25 | __ | 00000000 | 00000 | 00000000 | 00000 | 000000 | 00 |
Thermally Shock-Resistant Mullite Ceramic Powder
- Color: White
- Temperature Range: 0° F to 3,000° F
- Porosity: 6%
Mullite can withstand very high temperatures and will not deform or crack when repeatedly exposed to temperature fluctuations. Add it to slurries to create crucibles, ladles, and other parts by casting it. Mullite powder is common in furnaces, heaters, thermocouples, electrical insulation, and glass- and steel-industry refractories. When exposed to chemicals that are used to make steel, such as acid, it will not corrode. Due to fused fabrication, it has higher purity and more uniformity which leads to better thermal shock resistance and low thermal expansion.
Choose a particle size based on the application of your finished piece. Finer powders can be processed into finished pieces that will be harder, stronger, and more wear-resistant than those made with coarse grains. They may also have a finer finish. Parts made with coarse grain powders can be processed into pieces that are more porous and thermally shock-resistant than pieces made with finer grains. Mixing sizes can combine these properties.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
5 lbs. Pail | 10 lbs. Pail | 25 lbs. Pail | |||||
|---|---|---|---|---|---|---|---|
| Particle Size | Particle Mesh Size | Each | Each | Each | |||
Fine Grit | |||||||
| 0-45 microns | -325 | 0000000 | 000000 | 0000000 | 000000 | 0000000 | 000000 |
Medium Grit | |||||||
| 0-425 microns | -40 | 0000000 | 00000 | 000000 | 00 | 000000 | 00 |
| 212-500 microns | 35-70 | 0000000 | 00000 | 000000 | 00 | 000000 | 00 |
Coarse Grit | |||||||
| 500-2000 microns | 10-35 | 0000000 | 00000 | 000000 | 00 | 000000 | 00 |
| 2000-2360 microns | 8-10 | 0000000 | 00000 | 000000 | 00 | 000000 | 00 |
High-Purity Acid-Resistant Green Silicon Carbide Powder
- Color: Green
- Temperature Range: 0° F to 3,600° F
- Hardness: Mohs 9
- Specifications Met: JIS R 6001
Highly pure, this green silicon carbide powder is consistent between batches and bonds better than less pure powders, yielding less cracking and wear in finished products. Products made from green silicon carbide are tough, have excellent corrosion resistance, and good thermal shock resistance. They’re often used in technical ceramics applications such as mechanical seals, thread guides, and heat exchangers.
Silicon carbide is nearly chemically inert, meaning it won’t corrode in chemical processing environments. It’s good for use in rubbing parts such as bearings and bushings because it dissipates heat well and doesn’t warp from temperature swings. Mullite, however, is often preferred for applications that include rapid temperature swings. This silicon carbide operates in heat up to 3600° F, so it’s commonly used in furnaces and refractories. It’s so hard that it’s often used for body armor and abrasion processes such as pressure blasting. It’s more brittle than other ceramics, though, and is best used with low weight loads at slow to moderate speeds. This powder meets tightly graded, narrow size distribution JIS tolerance standards.
Choose a particle size based on the application of your finished piece. Finer powders can be processed into finished pieces that will be harder, stronger, and more wear-resistant than those made with coarse grains. They may also have a finer finish. Parts made with coarse grain powders can be processed into pieces that are more porous and thermally shock-resistant than pieces made with finer grains. Mixing sizes can combine these properties.