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- W3149335079 abstract "The tetragonal zirconia polycrystals containing Yb2O3 and CeO2 (Yb-Ce-TZP) with high fie-cural strength and toughness were obtained by using nanopowders as raw materials. The stabilizing agents were added to the specimen by mixing Yb2O3, CeO2 and ZrO2 nanopowders proportionally in ethyl alcohol. The specimen were sintered at an ambient pressure and 1430～1580℃ for 2 h. XRD was employed to investigate the phase composition for the Yb-Ce-TZP materials before and after fracturing. The grain size was determined by SEM. The relationship between the sintering temperature,density, stabilizing agent composition, grain size and monoclinic phase increment (Vt→m) was studied. It was found that the higher Vt→m was obtained at 1530℃, at which the grain size is 1.8-2.μm. Meanwhile, There was a more Vt→m apparently and improve the mechanical properties. The Yb-Ce-TZP containing 0.75% Yb2O3 and 9% CeO2 (in mol) showed the best mechanical properties, which is superior to that of Yb-TZP and Ce-TZP. It was concluded that the composite stabilizing agents can raise the monoclinic phase increment by increasing the transforming ability of tetragonal phase, which is probably by way of deforming the crystallinic structure of tetragonal zirconia." @default.
- W3149335079 created "2021-04-13" @default.
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- W3149335079 date "1998-01-01" @default.
- W3149335079 modified "2023-09-24" @default.
- W3149335079 title "THE TRANSFORMED AMOUNT DURING FRACTURE TESTING AND MECHANICAL PROPERTIES OF Yb-Ce-TZP" @default.
- W3149335079 hasPublicationYear "1998" @default.
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