METHOD OF STABILISING RARE-EARTH IONS IN TRIVALENT STATE IN SILICATE GLASS AND COMPOSITES Russian patent published in 2015 - IPC C03C4/12 C03C3/95 

FIELD: chemistry.

SUBSTANCE: method of stabilising trivalent ions of cerium (Ce³⁺), praseodymium (Pr³⁺) and divalent europium (Eu²⁺) in silicate glass and glass composites in a glass melting mixture includes adding silicon carbide in a ratio to cerium, praseodymium or europium oxides in the range of 2/1 to 1/3. A premix of silicon carbide and cerium, praseodymium or europium oxides is prepared first and then mixed with components of the mixture.

EFFECT: stabilising trivalent ions of cerium and praseodymium and divalent europium in silicate glass and glass composites by adding silicon carbide.

3 dwg, 1 tbl