Change of the Phase Composition and Strength of Al2O3–ZrO2-Ceramic After Hydrothermal Aging
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The effect of Al2O3 weight content on the stability of the phase composition and strength of ceramic in the system Al2O3–3Y-ZrO2 prepared by a commercial technology was determined. It was shown that the introduction of aluminum oxide has a positive effect on the stability of the tetragonal phase of zirconium dioxide during accelerated aging. At the same time increasing the mass content of aluminum oxide from 15 to 80% does not significantly change the ratio t-ZrO2/m-ZrO2. It was observed that the strength of all materials containing aluminum oxide increases after aging for 5 h.
Key wordsbioceramic hydrothermal aging strength in three-point bending transformation hardening free sintering 3Y-ZrO2
This work was performed at Novosibirsk State Technical University with financial support from the Ministry of Education and Science of the Russian Federation as part of the implementation of a complex project on the development of high-tech industry (contract No. 02.G25.31.0144, December 1, 2015).
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