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Alumina Ceramic Block For Insulator/Innovacera
| Model No. : | INC-AL12 |
|---|---|
| Brand Name : | INNOVACERA |
Product description
Al2O3 ceramic material is the Hcp structure composed by oxygen ions, and aluminum ions filled
in two-thirds of the octahedral gap, which is the same natural corundum stable α- Al2O3 structure.
Alumina ceramics have the advantage with high melting point, high hardness, excellent wear r
esistance,good mechnical insulation,high-frequency loss,good thermal conductvity,heat,wear and
corrosion resistance.
Features:
high temperature resistance
high electric insulation performance
dielectric constant and medium loss
low thermal conductivity
excellent stability
high chemical resistance
| Property | Unit | 92% Alumina Ceramic | 95% Alumina Ceramic | 99% Alumina Ceramic | |
| Density | g/cm3 | ≥3.63 | ≥3.68 | ≥3.83 | |
| Water absorption | % | O | O | O | |
| Sintering temperature | °C | 1500-1700 | 1600-1800 | 1700-1800 | |
| Hardness | HV | ≥1400 | ≥1500 | ≥1650 | |
| Flexural strength | Kgf/cm2 | 3000 | 3000 | 3000 | |
| Compressive strength | Kgf/cm2 | 24000 | 25000 | 26000 | |
| Fracture toughness | Map.m3/2 | 3~4 | 3~4 | 4~5 | |
| Maximum temperature | °C | 1600 | 1700 | 1800 | |
| Coefficient of thermal expansion | /°C | 8*10-6 | 8*10-6 | 8*10-6 | |
| Heat shock | T(°C) | 220 | 220 | 220 | |
| Thermal conductivity | W/m.k(25-300°C) | 25 14 | 25 14 | 25 14 | |
| 20°C | >1012 | >1012 | >1012 | ||
The ceramic parts include:tube, rod, plate, disc, wafer, ring, seal, bearing, valves, pump plunger,
beam, roller, shaft, screw, washer, sleeve, hunger, spacer, holder, carrier, insulator, scissors, knife,
slitter, tweezers, tools, fixture, clamp, chuck, nozzle, guide, frame, lining, and grinding media, milling
ball or beads.
These precision toleranced ceramic components or assemblies are used in a wide range of s
emiconductor, electronic, electrical, mechanical, chemical, automotive, textile and the other industrial engineering applications, due to their extreme hardness, more resistances to wear, heat, corrosion,
high electric insulation, and low thermal expansion.
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