Doped bismuth silicate crystals via devitrification of glass forming liquids
AssigneeGlass Coatings & Concepts, LLC
InventorsYuxuan Gong, Mariano H. Velez
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Abstract
This technology is directed to the preparation of doped-bismuth-silicate seed crystals through controlled crystallization (e.g. dimensionality of growth and nucleation mechanism) and the method of forming high purity single seed (particle size ranges from micrometers to millimeters) for various uses. These seed crystals have a nominal stoichiometry of Bi2-xAxSiO5, Bi2-xAxSi3O9, Bi4-xAxSi3O9, and Bi12-xAxSiO20, where A is a rare earth dopant selected from La, Ce, Nd, Pr, and/or Sm.
Claims10
A doped bismuth-silicate seed crystal comprising from 48.750 to 49.975 mol % bismuth trioxide, 50.000 mol % silicon dioxide, and 0.025 to 1.250 mol % of a rare earth dopant A, having a stoichiometry of Bi2-xAxSiO5, and where x=0.001 to 0.05.
A doped bismuth-silicate seed crystal wherein the dopant is La, with a stoichiometry of Bi1.9La0.1SiO5.
Dependencies are inferred from the claim text.