Change of the Phase Composition and Strength of Al2O3–ZrO2-Ceramic After Hydrothermal Aging
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).
- 1.P. M. Kelly and L. R. F. Rose, “The martensitic transformation in ceramics — its role in transformation toughening,” Progr. Mater. Sci., No. 47, 463 – 557 (2002).Google Scholar
- 2.N. Claussen, “Microstructural design of zirconia-toughened ceramics (ZTC),” Adv. Ceram., No. 12, 325 – 351 (1984).Google Scholar
- 3.R. C. Garvie, R. H. J. Hannink, and R. T. Pascoe, “Ceramic steel?,” Nature, No. 258, 703 – 704 (1975).Google Scholar
- 4.J. Chevalier, L. Gremillard, and S. Deville, “Low-temperature degradation of zirconia and implications for biomedical implants,” Ann. Rev. Mater. Res., No. 37, 1 – 32 (2007).Google Scholar
- 8.E. S. Elshazly, M. E. S. Ali, and S. M. El-Hout, “Alumina effect on the phase transformation of 3Y-TZP ceramics,” J. Mater. Sci. Technol., 24(6), 873 – 877 (2008).Google Scholar
- 9.S. Veselov, N. Belousova, N. Cherkasova, et al., “Development modes of prior free sintering to form a high-density fine grain ceramics after HIP,” Appl. Mechanics Mater., Trans. Tech. Publ., 698, 457 – 460 (2015).Google Scholar
- 11.S. V. Veselov, “Evaluation of the effect of zirconium dioxide additive on the structure and properties of aluminum oxide ceramic,” in: Current Problems of Machine Engineering: Materials. International Scientific and Applications Conference [in Russian] (2014), pp. 473 – 477.Google Scholar
- 16.N. S. Stukacheva, S. V. Veselov, N. Yu. Cherkasova, et al., “Effectiveness of using nanodisperse zirconium dioxide powder to strengthen aluminum oxide ceramic,” Dokl. Akad. Nauk Vysshei Shkoly Ross. Feder., No. 4, 33 – 42 (2016).Google Scholar
- 17.M. Yoshimura, T. Noma, K. Kawabata, and S. Somiya, “Role of water on the degradation process of Y-TZP,” J. Mater. Sci. Lett., No. 6, 465 – 467 (1987).Google Scholar
- 21.S. V. Veselov, N. S. Stukacheva, R. I. Kuz’min, et al., “Structure and mechanical properties of ceramic materials of the system Al2O3–ZrO2,” Nauch. Vest. Novosibirsk. Gos. Tekh. Univer., No. 4, 207 – 217 (2016).Google Scholar
- 22.F. Kern, S. Koummarasy, and R. Gadow, “The influence of stabilizer concentration on the mechanical properties of alumina – vol.% zirconia (0.6Y-2Y) composites,” J. Ceram. Sci. Technol., 7(3), 295 – 300 (2016).Google Scholar