High Alkaline High Alumina line blend I
Both the left member, and right member of this line blend have empirical
formula with:
alumina = .6
slilica = 3
Li2O = .3
Thus equally all the tiles have this alumina and silica, and lithium
The left member has minimal alkaline earths, with combined CaO and MgO equal
to .08.
The right member has combined CaO and MgO equal to .4
This is a test of the effect of the relative proportion of alkaline metals to
alkaline earths.
This is fired to cone 6 in an electric kiln. All the tiles were fired in the
same kiln, on the same shelf.
High Alkaline High Alumina line blend II
Both the left member, and right member of this line blend have empirical
formula with:
alumina = .6
slilica = 3
Li2O = .36 for the left member, .39 for the right member
Thus equally all the tiles have this alumina and silica and similar high Li2O
The left member has minimal alkaline earths, with combined CaO and MgO equal
to .05.
The right member has combined CaO and MgO equal to .32
This is anoter test of the effect of the relative proportion of alkaline metals to
alkaline earths, but with higher lithium.
This also is fired to cone 6 in an electric kiln. All the tiles were fired in
the same kiln, on the same shelf.
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