Customization: | Available |
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Application: | Industrial Ceramic, Insulation |
Density: | Over 3.65g/cm3 |
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The specification of technical ceramic parts
Option Materials | alumina, zirconia, silicon carbide, silicon nitride, steatite optional |
Outer diameter | 0.5 ~800 mm |
Length | 1~1000mm |
Roughness | To be Ra0.05 |
Surface treatment | Polished, Glazed, Metalized availability |
Cosmetic | Smooth surface without contamination, deformation, and crack |
The main characteristics of the technical ceramic parts
1. They offer different grade dimensional accuracy per sintered only, precision machiningAluminum oxide (Alumina) has an extensive application due to its versatility and lower cost of material than other advanced ceramics. Alumina offers high electrical insulation resistance, high-temperature resistance, strong hardness, wear resistance, and good chemical stability, making it a good material to withstand high temperatures and chemical corrosion.
Our factory produces a selection of purity of alumina from 75% to 99.8%, all of the ceramic parts we supplied are with a dense body via dry pressing, hot pressing, ceramic injection molding, and ISO pressing. In order to achieve some special application for fitting, reducing the friction, increasing the insulation, we provide a serial of secondary processes after sintering, covering CNC machining, polishing, glazing, and metalizing.Datasheet of technical ceramic materials
Property | Units | Materials | ||||
99.5%Al2O3 | 99%Al2O3 | 95%Al2O3 | ZrO2 | Si3N4 | ||
Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 | ≥6.0 | ≥3.2 |
Water absorption | % | 0 | 0 | 0 | 0 | 0 |
Hardness | HV | 1700 | 1700 | 1500 | 1300 | 1550 |
Flexural strength | Mpa | ≥379 | ≥338 | ≥320 | ≥1200 | ≥600 |
Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥1990 | ≥2500 |
Fracture toughness | Mpa m1/2 | 4-5 | 4-5 | 3-4 | 6.5-8 | 6 |
Max. service temperature (Non-loading) |
ºC | 1675 | 1600 | 1500 | 1000 | 1200 |
CTE (20-800ºC) | 1×10 -6 /ºC | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 3.1 |
Thermal shock | T(ºC) | ≥250 | ≥200 | ≥220 | ≥300 | ≤1000 |
Thermal conductivity(25ºC) | W/m.k | 30 | 29 | 24 | 3 | 15~20 |
Volume resistivity (25ºC ) | ohm.cm | >1 x 10 14 | >1 x 10 14 | >1 x 10 14 | >1 x 10 11 | >1 x 10 12 |
Insulation strength | KV/mm | 19 | 18 | 18 | 17 | |
Dielectric constant(1Mhz) | (E) | 9.7 | 9.5 | 9.5 | 29 |
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