УДК: 666.762.36, 542.6, 546.6

Increasing the optical transparency of MgAl2O4 ceramic when two-stage uniaxial pressing is used

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Шарыпин В.В., Евстропьев С.К. Повышение оптической прозрачности керамики MgAl2O4 при применении двухстадийного одноосного прессования // Оптический журнал. 2016. Т. 83. № 3. С. 60–65.

Sharypin V.V., Evstropiev S.K. Increasing the optical transparency of MgAl2O4 ceramic when two-stage uniaxial pressing is used [in Russian] // Opticheskii Zhurnal. 2016. V. 83. № 3. P. 60–65.

For citation (Journal of Optical Technology):

V. V. Sharypin and S. K. Evstrop’ev, "Increasing the optical transparency of MgAl₂O₄ ceramic when two-stage uniaxial pressing is used," Journal of Optical Technology. 83(3), 185-188 (2016). https://doi.org/10.1364/JOT.83.000185

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.

Keywords:

magnesium-aluminate spinel, transmission spectra, ceramics, molding pressure

Acknowledgements:

This work was partially supported by Grant No. 074-U01 of the Government of the Russian Federation.

OCIS codes: 160.0160, 240.0240, 330.0330

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