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Address: Dashu Industry Park, Nanyuan Village, Yichen Subdistrict, Yixing City, 214225, Jiangsu Province, China
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Yixing Minghao Special Ceramic Technology Co., Ltd. |
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95% alumina ceramic insulating part high temperature resistance alumina ceramic
Alumina ceramic parts
Alumina ceramic parts are made of aluminum oxide ceramics. Alumina
is a ceramic material with high thermal conductivity, compressive
strength, and thermal shock resistance. It also has a low thermal
expansion, making it a suitable material for furnace use in the
crucible, tube, and thermo couple sheath form. Aluminum oxide is
high hardness and good wear resistance, making it a suitable
material for ball valves, piston pumps, and deep drawing tools. In
addition, alumina ceramic parts can be easily combined with metals
and other ceramic materials using brazing techniques and
metallization.
Structural ceramics have the characteristics of wear resistance,superior strength, hardness, insulation, heat conduction, high temperature resistance, corrosion resistance, high temperature refractory, etc.The manufactured products are widely used in medical devices, electrical insulation applications and other wear protection, sealing and heat sink applications.
| Properties | Unit | Steatite ceramic | 95% Al2O3 | 99% Al2O3 | Zirconia Ceramic |
| Density | g/cm³ | 2.8 | 3.6 | 3.8 | 5.6 |
| Flexural strength | Mpa | 145 | 300 | 300 | 354 |
| Max Working Temperature | ℃ | 1100 | 1400 | 1600 | 1400 |
| Sintering temperature | ℃ | 1350 | 1700 | 1750 | 1550 |
| Heat resistance | T(℃) | 200 | 220 | 200 | 350 |
| Hardness | Gpa | 5.7 | 7 | 10.7 | 12.3 |
| Elastic modulus | Gpa | 120 | 275 | 320 | 205 |
| Poissons ratio | - | 0.21 | 0.22 | 0.22 | 0.30 |
| Linear expansion coefficient | x 10-6/℃ | 7.9 | 7.1 | 7.8 | 9 |
| Insulation breakdown Intensity | KT/mm | 10 | 16 | 18 | 15 |
| Thermal conductivity | w/(m.k) | 2.5 | 20 | 25 | 2.5 |
| Specific Heat | *10-3J/(kg*K) | 0.75 | 0.78 | 0.78 | 0.4 |
