China Refractory Wear Resistance 95% 99% Alumina Ceramic Substrate Plate, Find details about China Ceramic Plate, Alumina Al2O3 Plate from Refractory Wear Resistance 95% 99% Alumina Ceramic Substrate Plate
Material Introduction:
Aluminium Oxide, Al2O3 is the most widely applied and cost effective technical ceramic material. It offers a combination of superior mechanical strength and electrical properties, wear resistance and corrosion resistance. The maximum working temperature is up to 1700 °C with relatively high thermal conductivity. It is also an electrically insulating material with a high electrical resistivity. The good corrosion resistance makes it insoluble in water and slightly soluble in strong acid and alkaline solution.1). Excellent insulation, security, long working life.
2). High temperature resistance
3). Resistance to electric breakdown
4). Stand wear and tear
5). High strength
6). Corrosion resistance
7). Good compactness
8). HIgh hardness
Properties | Unit | Zirconia | Alumina | |
Content | % | ≥94 | ≥95 | ≥99.5 |
Density | g/cm3 | 6 | 3.65 | 3.85 |
Hardness | Hv | 1350 | 1300 | 1700 |
Bending strength | Mpa | 1000 | 340 | 370 |
Compression strength | GPa | 200 | 300 | 350 |
Dielectric Strength | kV/mm | 11 | 15 | 15 |
Max use temperature | °C | 2200 | 1400 | 1800 |
Processing technology | ||||
Process range (mm) | ||||
Outside Diameter | 1---300 | |||
Inside Diameter | 0.5---300 | |||
Length | 0.5---1200 | |||
Accuracy of working (mm) | ||||
Perpendicularity | 0.01 | |||
Concentricity | 0.01 | |||
Roundness | 0.005 | |||
Straightness | 0.005 | |||
Parallelism | 0.01 | |||
Planeness | 0.005 | |||
Roughness | 0.05 | |||
Fit clearance | 0.005 |
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