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Offers a combination of good mechanical and electrical properties leading to a wide range of applications. Alumina can be produced in a range of purities with additives designed to enhance properties. It can be formed using a wide variety of ceramic processing methods and can be machined or net shaped formed to produce a wide variety of sizes and shapes of component. In addition it can be readily joined to metals or other ceramics using metallising and brazing techniques.
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| Good corrosion resistance |
| Excellent dielectric properties |
| Good strength and stiffness |
| Good thermal stability |
| Good hardness and wear resistance |
| Low dielectric constant and loss tangent |
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| Typical applications include |
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| Electrical insulators |
| Electronic substrates |
| Grinding media |
| Wear components |
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| Used for the electrical insulation of various components in the furnace environment.
For temperatures upto 1400ºc
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| Type of Ceramic |
Aluminous Porcelain |
| Colour |
White |
| Open Porosity |
0 |
| Apparent Density |
2.8Kg/dm |
| Flexural Strength |
162 MPa |
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| A Magnesium Alumina Silicate material. Its most important feature is that it has a very low coefficient of thermal expansion and excellent resistance to thermal shock. It is also similar to Steatite in that it is relatively low cost, has good electrical insulation properties, has moderate mechanical properties and temperature resistance, and can readily be formed in a variety of shapes. In particular it can be made in high volume through cost-effective extrusion or dry-pressing methods. |
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| High resistance to thermal shock. |
| Low density |
| Low thermal expansion coefficient |
| Moderate strength |
| Low dielectric loss factor |
| Volume resistivity |
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| Typical applications include |
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| Heating element supports |
| Feed-thru insulators |
| Electrical insulators |
| Burner tubes |
| Special furnace shapes |
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