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Isothermal Section of the Al2O3–TiO2–Gd2O3 Phase Diagram at 1400°C

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An isothermal section of the Al2O3–TiO2–Gd2O3 phase diagram is constructed at 1400°C. No new phases or appreciable solubility regions based on components or binary compounds are found in the system. Triangulation of the system is determined by the Gd2Ti2O7 phase, being in equilibrium with Al2TiO5 and GdAlO3 compounds and TiO2 and Al2O3 components. At 1400°C, the system is triangulated into six secondary triangles; three-phase eutectics are expected to exist in some of them. Quasibinary eutectics are likely to exist in three quasibinary sections of the system.

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References

  1. Tung-Ming Pana, Pei-You Liao, Kung-Yuan Chang, and Lifeng Chi, “Structural and sensing characteristics of Gd2Ti2O7, Er2TiO5 and Lu2Ti2O7 sensing membrane electrolyte–insulator–semiconductor for biosensing applications,” Electrochim. Acta, 89, 798–806 (2013).

  2. J. Christopher and C. S. Swamy, “Surface characterization and catalytic activity of Ln2Ti2O7 (Ln = Y, Sm, Gd and Tb),” Mater. Sci., 26, 4966–4970 (1991).

    Article  Google Scholar 

  3. Sh. Hayun and A. Navrotsky, “Formation enthalpies and heat capacities of rear earth titanates: RE2TiO5 (RE = La, Nd and Gd),” Solid State Chem., 187, 70–74 (2012).

    Article  Google Scholar 

  4. Ya. S. Tishchenko, S. M. Lakiza, V. P. Red’ko, and O. V. Dudnik, “Isothermal sections of the Al2O3–TiO2–Y2O3 phase diagram at 1550 and 1400°C,” Powder Metall. Met. Ceram., 55, Nos. 11–12, 698–706 (2016).

  5. Yu. F. Shepelev and M. A. Petrova, “Crystal structures of Ln2TiO5 (Ln = Gd, Dy) polymorphs,” Inorg. Mater., 44, No. 12, 1354–1361 (2008).

    Article  Google Scholar 

  6. L. Waring and S. J. Schneider, “Phase equilibrium relationships in the system Gd2O3–TiO2,” J. Res. Nat. Bur. Stand., A. Phys. Chem., 69A, No. 3, 255–261 (1965).

  7. G. J. McCarthy, W. B. White, and R. Roy, “Preparation and structure of the rare earth titanates,” Mater. Res. Bull., 4, 251–256 (1969).

    Article  Google Scholar 

  8. Takashi Kiyama, Shin-ichiro Fujisawa, Hajime Saitoh, et al., “NMR study of orbital ordering in RTiO3 (R = Y, Gd, and La),” Physica B, 329–333, 733–735 (2003).

    Article  Google Scholar 

  9. P. P. Budnikov, V. I. Kushakovskii, and V. S. Belevantsev, “Study of the Gd2O3–Al2O3 and Sm2O3–Al2O3 systems,” Dokl. Akad. Nauk SSSR, 165, No. 5, 1075–1077 (1965).

    Google Scholar 

  10. M. Gervais and A. Douy, “Solid phase transformation and melting of the compounds Ln4Al2O9 (Ln = Gd, Dy, Y),” Mater. Sci. Eng., B38, No. 1–2, 118–121 (1996).

    Article  Google Scholar 

  11. J. Coutures and J. P. Coutures, “High-temperature X-ray study of polymorphic transformations of perovskites LnAlO3 (Ln = lanthanide element),” Solid State Chem., 52, No. 2, 95–100 (1984).

    Article  Google Scholar 

  12. T. Shishido, K. Okamura, and S. Yajima, “Gd3Al5O12 phase obtained by crystallization of amorphous Gd2O3 · 5/3Al2O3,” J. Am. Ceram. Soc., 61, No. 7–8, 373–375 (1978).

    Article  Google Scholar 

  13. N. N. Matyushenko, E. P. Shevyakova, E. V. Lifshits, et al., “Crystalline structure and some properties of GdAl11O18,” Zh. Neorg. Khem., 30, No. 7, 1654–1657 (1985).

    Google Scholar 

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Correspondence to Ya. S. Tishchenko.

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Translated from Poroshkovaya Metallurgiya, Vol. 56, Nos. 1–2 (513), pp. 115–121, 2017.

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Tishchenko, Y.S., Lakiza, S.M., Red’ko, V.P. et al. Isothermal Section of the Al2O3–TiO2–Gd2O3 Phase Diagram at 1400°C. Powder Metall Met Ceram 56, 88–93 (2017). https://doi.org/10.1007/s11106-017-9875-7

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  • DOI: https://doi.org/10.1007/s11106-017-9875-7

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