vendredi 14 octobre 2011

Cone 4 #22 Texturée

Frit 3134 32
Gerstley borate 32
Lithium carbonate 3
EPK 12
Kaolin (Calc.) 11
Silica 10
Total 100

Na2O 0.20 Al2O3 0.23 SiO2 1.66
K2O 0.00 B2O3 0.62 P2O5 0.00
MgO 0.07 TiO2 0.00
CaO 0.62 Fe2O3 0.00
Li2O 0.10

Alumina:Silica ratio is 1.00:7.30
Neutral:Acid ratio is 1.00:1.97
Alk:Neut:Acid ratio is 1.00:0.84:1.66

Expansion: 76.0 x 10e-7 per degree C
Oxides causing abnormal expansion: Li2O B2O3

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