Method of making alkali metal silicate glass, feedstock, and glass article formed therefrom
OwnerJames Anderson, Adam Ellison +1inventors
InventorsJames Anderson, Adam Ellison, Sabyasachi Sen
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Abstract
A method of making an alkali metal silicate glass includes preparing an alkali metal feedstock having a first desired level of alkali metal, the alkali metal feedstock being essentially free of an element that absorbs between 0.8 and 2.5 μm in any valence state. The method also includes combining and mixing the alkali metal feedstock with at least one silicate feedstock to form a precursor material having a second desired level of alkali metal and melting the precursor material to form molten glass.
Claims26
A method of making an alkali metal silicate glass comprising:
- preparing an alkali metal feedstock having a first desired level of alkali metal, the alkali metal feedstock being essentially free of a transition metal selected from the group consisting of Co, Cr, Cu, Fe, Mn, Ni, Ti, and V;
- combining and mixing the alkali metal feedstock with at least one silicate feedstock to form a precursor material having a second desired level of alkali metal;
- and
- melting the precursor material to form molten glass.
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A precursor, comprising:
- a mixture of an alkali metal feedstock and a silicate feedstock, the mixture comprising 0.035 to 6 mol % of an alkali metal and at least 80 mol % of silica;
- wherein the alkali metal feedstock is essentially free of a transition metal selected from the group consisting of Co, Cr, Cu, Fe, Mn, Ni, Ti, and V, and the alkali metal feedstock is substantially uniformly distributed within the precursor.
A glass article comprising:
- an alkali metal in an amount of 0.035 to 6 mol % and silica in an amount of at least 80 mol %, wherein the glass article is essentially free of a transition metal selected from the group consisting of Co, Cr, Cu, Fe, Mn, Ni, Ti, and V, and the alkali metal is substantially radially uniformly distributed within the glass article.
Dependencies are inferred from the claim text.