Joint doping of porous glasses to produce materials with high modifier concentrations
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United States of America Patent
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Nov 10, 1981
Issued Date -
N/A
app pub date -
Sep 14, 1979
filing date -
Dec 30, 1976
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Expired
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Abstract
A glass composition having at least 85 mole percent of SiO.sub.2, where the improvement comprises at least 7 wt percent of at least one member selected from the group consisting of PbO and Bi.sub.2 O.sub.3 and at least 1.5 mole percent of at least one member selected from the group consisting of K.sub.2 O, Rb.sub.2 O and Cs.sub.2 O.
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