Abstract

This paper presents the results of experiments on increasing the density and optical transparency of MgAl₂O₄ ceramic when two-stage uniaxial pressing is used. It is experimentally shown that it is possible to obtain high-density (more than 99.3% of the theoretical value) ceramic that possesses high transparency in a wide spectral range when a combination of cold pressing of nanopowders at loads of 200–400 MPa followed by hot pressing of the blanks at a temperature of 1450–1470°C and a pressure of up to 175 MPa is used.

© 2016 Optical Society of America

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