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Low Expansion Material
Materials used to make bodies requiring low expansion (e.g. flameware, refractories). The individual particles of these materials have low expansion. Some of theme even expand at certain temperature ranges.
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| Materials |
Calcined Kaolin
This is kaolin powder that has been fired in a furnace to remove the 12% crystal water and render it non-plastic. |
| Materials |
Kyanite
Kyanite is a granular material used in the manufacture of ceramics and abrasives. It is notable for low thermal expansion and one-way expansion on heating. |
| Materials |
Pyrophyllite
A refractory aluminum silicate mineral often used in clay body recipes to lower thermal expansion, control fired maturity, mullite development catalyst, etc. |
| Materials |
Andalusite
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| Materials |
Calcined Alumina
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| Materials |
Zircon
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| Materials |
Molochite
Powdered and granular forms are produced by calcining kaolin so high that it converts completely to crystalline mullite. |
| Materials |
Talc
A source of MgO for ceramic glazes, a flux or thermal expansion additive in clay bodies, also used in the manufacture of cordierite. |
| Glossary |
Pyroceramics
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