CERAMIC LASER MICROSTRUCTURED MATERIAL WITH TWINNED NANOSTRUCTURE AND METHOD OF MAKING IT Russian patent published in 2009 - IPC C30B28/00 C30B33/02 C30B29/12 H01S3/16 B82B3/00 

FIELD: physics.

SUBSTANCE: proposed laser material is a ceramic polycrystalline microstructure substance with particle size of 3-100 mcm, containing a twinned nanostructure inside the particles with size of 50-300 nm, made from halides of alkali, alkali-earth and rare-earth metals or their solid solutions, with vacancy or impurity laser-active centres with concentration of 10¹⁵-10²¹ cm^-3. The method involves thermomechanical processing a monocrystal, made from halides of metals, and cooling. Thermomechanical processing is done until attaining 55-90% degree of deformation of the monocrystal at flow temperature of the chosen monocrystal, obtaining a ceramic polycrystalline microstructure substance, characterised by particle size of 3-100 mcm and containing a twinned nanostructure inside the particles with size of 50-300 nm.

EFFECT: improved mechanical properties, increased microhardness and failure viscosity.

5 cl, 1 tbl, 4 ex, 1 dwg