Product Item: Alumina Ceramic Part Or Ceramic Components
Product Description
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.
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Item
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Test Condition
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Unit Symbol
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96%Alumina ceramics
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99%Alumina ceramics
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99.6%Alumina ceramics
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The main chemical ingredient
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Al2O3
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Al2O3
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Al2O3
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Bulk Density
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g/cm3
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3.6
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3.89
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3.96
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Maximum Use Temperature
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1450°C
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1600°C
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1650°C
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Water absorption
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%
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0
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0
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0
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ROHS Hardness
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≥85
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≥89
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≥89
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Flexural strength
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20° C
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MPa (psi x 103)
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358 (52)
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550
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550
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Compressive Strength
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20° C
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MPa (psi x 103)
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2068 (300)
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2600(377)
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2600(377)
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Fracture Toughness
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K(I c)
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Mpa m1/2
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4-5
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5.6
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6
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Coefficient of
thermal expansion
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25-1000° C
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1X 10-6/°C
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7.6
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7.9
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8.2
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Coefficient of
thermal conductivity
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20° C
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W/m °K
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16
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30.0
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30.4
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Thermal Shock Resistance
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Tc
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°C
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250
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200
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200
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Dielectricity constant
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1MHz.25°C
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9
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9.7
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9.7
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Dielectric strength
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ac-kV/mm (ac V/mil)
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8.3 (210)
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8.7 (220)
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8.7 (220)
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Volume Resistivity
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100°C
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ohm-cm
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> 1013
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> 1014
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> 1014
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1.Material: Different grade alumina, zirconia, silicon carbide, steatite, cordirite and aluminum nitride available;
2.Available type: ceramic housing, ceramic frame, ceramic shaft, ceramic wafer and so on.
3.Design capability: varity of standard ceramic parts or customized design capability
4.Prototype to mass production capability
5.Features: High insulation, anti-chemistry, exceptional wear resistance, resistant high temperature, excellent physical properties.
Special offer: Most of our Goods are produced to order, please mark clearly height, bottom diameter, top diameter, wall thickness and any special requirements i.e. lips etc. To speed up quotations please supply a drawing and if appropriate, the name of the system in which they are to be used.
