■ Introduction:
Corundum ceramic rod is a type of ceramic rod made from corundum, which is a naturally occurring mineral with a hardness of 9 on the Mohs scale. Corundum ceramic rods have high strength, wear resistance, and chemical stability, making them ideal for applications in harsh environments, such as high-temperature furnaces and chemical processing plants. The high alumina ceramic rods are also used for precision grinding, polishing, and lapping of metal and semiconductor materials. The high alumina corundum ceramic rods are available in various sizes and shapes, including cylindrical, rectangular, and tapered, to suit different applications.
■ Technical data sheet:
Item | T92® | T95® | T993® |
Al2O3 Content -% | 92 | 95 | 99.3 |
Density(g/cm3) | 3.6 | 3.7 | 3.81 |
Bending Strength (MPa) | 312 | 304 | 340 |
coefficient of linear expansion (×10-6/℃)(25-800℃) | 7.5 | 7.3 | 7.6 |
Thermal conductivity [w/(m.R)] | 18 | 20 | 34 |
Insulation strength (KV/mm) | 10 | 10 | 10 |
volume resistivity (Ω.cm) 20℃ | >1014 | >1014 | >1014 |
Using Temperature(℃) | 1390 | 1480 | 1600 |
Hardness (Mohs) | 8.5 | 8.8 | 9 |
Refractoriness | 1920 | 2000 | 2030 |
■ Advantages:
1. High hardness: Corundum ceramic rods have a high hardness rating of 9 on the Mohs scale, making them highly resistant to wear and abrasion.
2. Excellent thermal stability: refractory corundum ceramic rods have excellent thermal stability and can withstand high temperatures of up to 1800°C without any degradation.
3. Chemical resistance: The corundum ceramic rod is highly resistant to chemical corrosion, making them ideal for use in harsh chemical environments.
4. Electrical insulation: high alumina ceramic rods are excellent electrical insulators, making them suitable for a wide range of electrical applications.
5. Dimensional stability: high alumina corundum ceramic rods have excellent dimensional stability, which means they maintain their shape and size even under extreme conditions.
6. Low friction:refractory corundum ceramic rods have a low coefficient of friction, making them ideal for use in sliding and rolling applications.
7. Biocompatibility: Corundum ceramic rods are biocompatible and can be used in medical and dental applications.
8. Non-magnetic: Corundum ceramic rods are non-magnetic, making them suitable for use in magnetic fields without any interference.