Effect of the Thermal Shrinkage Behavior of Yb:Lu2O3 Nanopowder Compacts on the Structural and Optical Characteristics of Ceramics


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Abstract

We have studied the thermal shrinkage of ytterbium-doped Lu2O3 nanopowder compacts during heating to 1550°C and examined the effect of the intermediate microstructure of the material on the characteristics of transparent ceramics after hot isostatic pressing at a temperature of 1700°C. The results demonstrate that the optical properties of the ceramics depend on the structural features formed in the presintering step. It has been shown for the first time that rate-controlled densification of powder compacts allows the extinction coefficient of transparent Yb:Lu2O3 ceramics to be reduced by a factor of ~1.8 in comparison with other sintering modes.

About the authors

R. N. Maksimov

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences; Ural Federal University named after the first President of Russia B.N. Yeltsin

Author for correspondence.
Email: r.n.maksimov@urfu.ru
Russian Federation, ul. Amundsena 106, Yekaterinburg, 620016; ul. Mira 19, Yekaterinburg, 620002

V. R. Khrustov

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences

Email: r.n.maksimov@urfu.ru
Russian Federation, ul. Amundsena 106, Yekaterinburg, 620016

V. A. Shitov

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences

Email: r.n.maksimov@urfu.ru
Russian Federation, ul. Amundsena 106, Yekaterinburg, 620016

A. S. Yurovskikh

Ural Federal University named after the first President of Russia B.N. Yeltsin

Email: r.n.maksimov@urfu.ru
Russian Federation, ul. Mira 19, Yekaterinburg, 620002

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