Red Alumina Ceramic Parts Ignition Head 95% Electronics Chemical Industry
red alumina ceramics ignition head alumina content 95% high use times electronics chemical industry
product name:red alumina ceramic head
Introduction of alumina ceramics:
Alumina ceramic is the most widely used, the most widely used and the largest output ceramic material in oxide ceramics. It has been deeply developed and widely used in modern industry. The colors are generally white and yellow or red. Alumina ceramics are mainly used in electronics and electricity. There are various alumina ceramic substrates, substrates, ceramic membranes, transparent ceramics, and various alumina ceramic electrical insulation ceramics, electronic materials, and magnetic materials. Common products in life include : sealing accessories, valve seats, mechanical parts, high-temperature electrical insulators, high-voltage insulators, electronic components and substrates, bulletproof armor, bearings, wear-resistant or corrosion-resistant linings, semiconductor parts, laser cavities, trays, sandblasting nozzles, grinders, microwave components, frictionless clutches, high-temperature kiln furniture, etc.
products index:
| Ceramic characteristic table | |||
| name | 99% AL2O3 | 95% AL2O3 | |
| physical propertyessential component | essential component | AL2O3≥99% | AL2O3≥95% |
| Density(g/cm3) | 3.85 | 3.6 | |
| water absorption% | 0 | 0 | |
| sintering temperature | 1690 | 1670 | |
| material characters | Hardness(HV) | 1700 | 1600 |
| break off strength | >6500 | >2900 | |
| compressive strength | 30000 | 25000 | |
| thermal response | maximum service tempera- ture | 1500 | 1400 |
| thermal expansion coefficient | 8 | 7.8 | |
| 10-6/℃ | |||
| 0-1000℃ | |||
| Heat shock resistance T(℃) | 200 | 220 | |
| thermal conductivity W/m.k | 31 | 22 | |
| electrical specification | volume resistivity Ω.cm | >1012 | >1012 |
| Insulation destructive power KT/m | 18 | 16 | |
| dielectric constant 1MHZ(E) | 9.2-10.5 | 9.0-10 | |
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