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Custom-made Ceramic
and Glass Components

Alumina

Aluminum oxide (Al2O3), commonly known as alumina, is extensively used as an engineering ceramic due to its high performance at a cost-effective price. Typically, alumina is available in grades from 88% to 99.99% purity with properties varying accordingly. Zirconia-toughened alumina is a modified, stronger grade of alumina.

Alumina components can be manufactured by a number of different methods including pressing, extruding, slip casting and injection molding.  The method of manufacture generally depends on the size and quantity of components required. 

Alumina starts the manufacturing process as a powder which, once compressed, can be machined if required (known as “green machining”) before being fired. After firing, further processing can only be carried out using diamond tooling.

It could be argued that alumina is one of the most cost-effective of all ceramic materials, and as a result is one of the most widely used. Its combination of high thermal conductivity and low thermal expansion imparts good thermal shock resistance.

Characteristics of alumina include:

  • Electrically insulating
  • High thermal conductivity
  • High strength and stiffness
  • Available in a range of purities
  • Excellent resistance to strong acids and alkalis at elevated temperatures

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Download the alumina pdf

Buy standard Alumina products online

Goodfellow also offers a range of standard, semi-finished forms in our online catalog. To see our catalog, please follow the link below.

Alumina (Al2O3)

The links below provide comparative physical, mechanical, thermal, electrical and chemical properties for a range of typical ceramic/glass materials. If the material or property you are interested in is not shown please call us or send us a message.

Ceramic PDF Data Table

Goodfellow Ceramic and Glass Division is able to supply a wide range of ceramic and glass materials as finished components. Our capabilities range from custom-made precision microcomponents with very high tolerance features to large heavy-duty components used in industrial applications. Additionally, standard semi-finished forms such as tubes, rods, bars, plates, crucibles and spheres are often available from our wide inventory. Please contact us with full details of your requirements, including drawings where available, and we will review and respond with a quotation as soon as possible.