jeudi 13 octobre 2011

Cone 4 #26 Transparent

Lepidolite 14
Spodumene 21
Frit 3134 19
Whiting 4
Barium carbonate 16
EPK 10
Silica 14
Magnesium carbonate 2
Total 100

Na2O 0.09 Al2O3 0.40 SiO2 2.40
K2O 0.05 B2O3 0.19 P2O5 0.00
MgO 0.07 TiO2 0.00
CaO 0.33 Fe2O3 0.00
Li2O 0.22
BaO 0.24

Alumina:Silica ratio is 1.00:6.02
Neutral:Acid ratio is 1.00:4.10
Alk:Neut:Acid ratio is 1.00:0.59:2.40

Expansion: 72.7 x 10e-7 per degree C
Oxides causing abnormal expansion: Li2O B2O3

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