MIXTURE FOR OPTICAL CERAMIC BASED ON MgAlO SPINEL, METHOD FOR PRODUCTION THEREOF AND METHOD OF PRODUCING OPTICAL NANOCERAMIC BASED ON MgAlO SPINEL Russian patent published in 2014 - IPC C04B35/443 C04B35/628 B82Y20/00 

FIELD: chemistry.

SUBSTANCE: when producing a mixture with high size homogeneity of particles that are doped with a sintering additive, the starting MgAl₂O₄ spinel in form of a size-homogenous nanopowder with particle size of 10-70 nm is mixed with a concentrated alcohol solution of boric acid and held for 1 hour, wherein a uniform layer of boric acid forms on the surface of each nanoparticle. The method of producing an optical nanoceramic based on a MgAl₂O₄ spinel includes heat treatment of a portion of the doped powder of said mixture, which is subjected to uniaxial hot pressing to obtain a dense transparent nanoceramic.

EFFECT: producing optical ceramic with high homogeneity and high optical transmission.

4 cl, 2 dwg, 3 ex