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.
- Kyanite is a super-duty refractory material with very high resistance to thermal shock.
- This material has a very low thermal expansion and high melting temperature.
- Pyrotrol products impart higher strength in electrical porcelains and reduce dunting problems associated with traditional porcelain bodies if substituted for silica content.
- Pyrotrol products impart higher strength in electrical porcelains and reduce dunting problems associated with traditional porcelain bodies if substituted for silica content.
- Pyrotrol products impart higher strength in electrical porcelains and reduce dunting problems associated with traditional porcelain bodies if substituted for silica content.
- Add this to reduce thermal expansion and reduce firing shrinkage.
Materials - TalcTalc is used up to 60% in low fire artware bodies to increase thermal expansion so they fit commercial glazes.
- Pyrophyllite is often included in bodies to reduce thermal expansion.
- A very low expansion material.
- A very low expansion material.
- A useful material for refractories and low expansion applications.
- Volume stable at high temperatures.
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