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MarkeTech Aluminum Oxide Ceramic - Alumina 99.5%

Category Ceramic , Oxide , Aluminum Oxide
Manufacturer MarkeTech
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF MarkeTech Aluminum Oxide Ceramic - Alumina 99.5%.pdf
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Material Notes:
Data provided by the supplier, MarkeTech International.Because of their high temperature, chemical, electrical, and mechanical properties along with their relatively low cost and ease of manufacture, alumina ceramics are the workhorse of engineered ceramics. They are compounded from pure alumina, silica and trace elements to achieve specific properties. Alumina is cast or pressed into sheets, tubes, rods and shapes. For custom engineer ceramics, alumina is often iso-pressed in to large shapes, and while in a chalk like form, can be easily "green machined" to near net shape. After high temperature firing, the parts are then finished machined using diamond tools. Surfaces of alumina can be lapped and polished.The final alumina ceramic can also be metallized, plated and brazed to metal components to form completed parts that are vacuum tight.
Physical Properties Metric English Comments
Density 3.97 g/cc
0.143 lb/in³
Open Porosity 0.00 %
0.00 %
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 220 MPa
31900 psi
Flexural Strength 410 MPa
59500 psi
Thermal Properties Metric English Comments
CTE, linear 7.80 µm/m-°C

@Temperature 20.0 °C
4.33 µin/in-°F

@Temperature 68.0 °F
Maximum Service Temperature, Air 1700 °C
3090 °F
Component Elements Properties Metric English Comments
Al2O3 99.7 %
99.7 %
Electrical Properties Metric English Comments
Dielectric Constant 9.7

@Frequency 1000 - 1.00e+9 Hz
9.7

@Frequency 1000 - 1.00e+9 Hz
Dielectric Strength 9.80 kV/mm

@Thickness 2.50 mm
249 kV/in

@Thickness 0.0984 in
DC @ 0.100 in (2.5 mm) thickness
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