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Alkatrol
Andalusite/pyrophyllite/sericite
Chemistry
Chemistry available on new site, see link above
Links to Other Materials
- Andalusite - Parent
- Sericite - Parent
- Pyrophyllite - Parent
- Pyrofrac - Related
- Andafrac - Related
- Pyrophyl - Related
- Pyrotrol - Related
- Seriphyl - Related
- Alkatrol G-20041 - Name Brand Of
- Alkatrol W-20031 - Name Brand Of
- Alkatrol W-22535 - Name Brand Of
- Cache
Miscellaneous
- Family: AlumSilicate
- Region: North America
- Mined At: Unspecified
- Raw Mineral: No
- Generic: Yes
Notes
Sericite is blended with andalusite/pyrophyllite ore to lower the PCE and produce the Alkatrol series of products. These are added to wall and floor tile to increase fired strength, in stoneware, structural ceramics, coatings, and whiteware ceramics to improve whiteness, widen firing range, reduce warpage, increase thermal shock resistance, and stabilize shrinkage.
This material is manufactured by crushing & screening and dry milling of selectively mined andalusite/pyrophyllite/sericite ores.
Individual alkatrol variations have different chemistries, the one shown here is an average.
Properties
Body Maturity - Mullite Formation
Assists in the formation of mullite at lower temperatures than formed by conventional alumina-silica sources.Body Plasticity - Extrusion
Moderately high percentages of the Alkatrol products can be substituted in body compositions to reduce laminations in pressing and to aid in extrusion.Body Thermal Expansion -
Add this to reduce thermal expansion and reduce firing shrinkage.
Data
- Specific Gravity: 2.60
- Specific Gravity: 2.60
Suppliers
- Piedmont Minerals
- RESCO Products
Authors
- Tony Hansen (Owner)
XML
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