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 %
Refractories and Industrial Ceramics – Springer Journals
Published: Nov 21, 2007
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