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High-strength ceramic materials based on polycrystalline tetragonal ZrO2 stabilized by Lu2O3

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Abstract

The effect of Lu2O3 on low-temperature stabilization of the tetragonal modification of ZrO2 is considered. The subject of study is ZrO2 - Lu2O3 binary systems with 1 –9 mole % Lu2O3 for specimens of ZrO2 powders prepared by the method invented by the authors. It is established that low-temperature stabilization oft- ZrO2 occurs in the region of 6 –8 mole % concentration of Lu2O3. The obtained ceramic material has a density of 99.8% of the theoretical value, an ultimate bending strength of at least 800 MPa, and a crack resistance of at least 13 MPa · m1/2 at a content of Lu2O3 equal to 6 –8 mole %

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Authors and Affiliations

  1. Institute of Physicochemical Problems of Ceramic Materials of the Russian Academy of Sciences, Moscow, Russia

    L. I. Podzorova, A. A. Il’icheva, N. A. Mikhailina & O. I. Pen’kova

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  1. L. I. Podzorova
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  2. A. A. Il’icheva
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  3. N. A. Mikhailina
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  4. O. I. Pen’kova
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Podzorova, L.I., Il’icheva, A.A., Mikhailina, N.A. et al. High-strength ceramic materials based on polycrystalline tetragonal ZrO2 stabilized by Lu2O3 . Refract Ind Ceram 40, 309–312 (1999). https://doi.org/10.1007/BF02762576

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