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No. 1 Ball Clay

Alternate Names: Kentucky No. 1 Ball Clay

Oxide Analysis Formula
CaO 0.10% 0.01
K2O 1.00% 0.04
MgO 0.10% 0.01
Na2O 0.10% 0.01
TiO2 0.70% 0.03
Al2O3 30.63% 1.00
SiO2 54.56% 3.02
Fe2O3 1.00% 0.02
LOI10.90%
C0.90%
Oxide Weight 293.67
Formula Weight 332.95

Notes

Particle Size (e.s.d.)
125 microns - 0.1
20 microns - 95
2 microns - 65
.5 microns - 52
Modulus of Rupture at 110C
Mn/M2 - 9.8
lbf/in2 - 1420
Water Absorption
1120C - 13.0
1220C - 6.0
Shrinkage Dry to Fired
1120C - 8.0
1220C - 12.0
Reflectance 464nm
1120C - 68
1220C - 67
Refractoriness
Cone - 33, 1730C

Related Information

Links

Materials Ball Clay
Suppliers Clay Orient (WBB)
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.

By Tony Hansen


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