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Body Thermal Expansion Property

Materials in this class are added to bodies to reduce their thermal expansion by simply diluting a high expansion matrix by introducing particles having low expansion. It is thus implied that these materials are added as grog and are not fired high enough to change their mineralogy and therefore thermal expansion properties.

Mechanisms

Materials Alkatrol
Materials Pyrotrol 2253
Materials Pyrotrol 3503
Materials Pyrotrol
Materials Mullite
Materials Kyanite
Materials Talc
Materials Pyrophyllite
Materials Calcined Alumina
Materials Zircon
Materials Calcined Kaolin
Materials Andalusite

Links

Glossary Co-efficient of Thermal Expansion
Ceramics are brittle and many types will crack if subjected to sudden heating or cooling. Some do not. Why? Differences in their co-efficients of thermal expansion.

By Tony Hansen


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