Abstract:
The luminescent properties of HfO$_2$–Y$_2$O$_3$–Eu$_2$O$_3$ ceramics with different yttrium content, prepared by coprecipitation from a common solution with subsequent sintering and additional annealing in an argon atmosphere, were studied. It was shown that the ceramics have a cubic crystal structure, the average grain size is about 3 $\mu$m. An increase in the yttrium content leads to an increase in the lattice constant, as well as to an increase in the number of low-symmetry Eu$^{3+}$ positions.
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