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.
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This work was supported by the Russian Foundation for Basic Research, project no. 16-03-00193 A.
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Maksimov, R.N., Khrustov, V.R., Shitov, V.A. et al. Effect of the Thermal Shrinkage Behavior of Yb:Lu2O3 Nanopowder Compacts on the Structural and Optical Characteristics of Ceramics. Inorg Mater 55, 634–639 (2019). https://doi.org/10.1134/S0020168519050133
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DOI: https://doi.org/10.1134/S0020168519050133