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Description: WBB Devon Ball Clay Group 3
Oxide | Analysis | Formula | |
---|---|---|---|
CaO | 0.20% | 0.01 | |
K2O | 2.60% | 0.09 | |
MgO | 0.30% | 0.02 | |
Na2O | 0.40% | 0.02 | |
TiO2 | 1.10% | 0.04 | |
Al2O3 | 32.20% | 1.00 | |
SiO2 | 53.00% | 2.79 | |
Fe2O3 | 1.00% | 0.02 | |
LOI | 9.20% | n/a | |
C | 0.30% | n/a | |
Oxide Weight | 287.63 | ||
Formula Weight | 317.82 |
Particle Size (e.s.d.)
125 microns - 0.30
10 microns - 97
2 microns - 85
1 microns - 76
Modulus of Rupture at 110C
Mn/M2 - 4.8
lbf/in2 - 700
Defloculant Required - (3:1 Na2SiO3(C.100):Na2CO3) - 0.8
Water Absorption
1120C - 0.5
1220C - 0.50
Shrinkage Dry to Fired
1120C - 14.50
1220C - 15.50
Reflectance 464nm
1120C - 66
1220C - 40
Refractoriness
Cone - 33, 1730C
Materials |
Ball Clay
A fine particled highly plastic secondary clay used mainly to impart plasticity to clay and porcelain bodies and to suspend glaze, slips and engobe slurries. |
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Typecodes |
Ball Clay
Ball clays are abundant and very plastic and are used in all types of plastic forming bodies. They are not as white-burning or refractory as kaolins but lower in iron and fluxes than bentonites. |
Typecodes |
Materials used in Denmark
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