l112 A.A. Sobol, Y.K. Voronko / Journal of Physics and Chemistry of Solids 65 (2004)1103-1112 3]A. Heuer, M. Ruhle, D B. Marshall, On the thermoplastic [16] B. Alzyab, C.H. Perry, R.P. Ingel, High-pressure phase transitions in ansformation in tetragonal zirconia, J. Am. Ceram. Soc. zirconia and yttria-doped zirconia, J. Am. Ceram. Soc. 79(1987) 4] V Lanteri, R. Chaim, A H. Heuer, On the microstructures resulting [17] Yu.K. Voronko, A.A. Sobol, L.I. Tzimbal, Cubic-to-tetragonal phase from the diffusionless cubic tetragonal transformation in ZrO transitions in ZrO2-Ln O, and HfO2-Ln, solid solutions, Inorg Y2O3 alloys, J Am Ceram Soc. 69(1986)258-261 Mater.34(1998)439-446 5] T. Sakuma, Y. Yoshisava, H. Suto, The microstructure and [18] P. Bouvier. G. Lucazeau, Raman spectra and vibrational analysis of yttria-stabilized zirconia prepared by arc nanometric tetragonal zirconia under high pressure, J Phys. Chem. v.I. Aleksandrov, Yu. K. Voronko, B V. Ignatiev, E E. Lomonova, [19] Yu. K. Voronko, A.A. Sobol, SN .V. Osiko, A.A. Sobol, Raman study of structural transformation in ZrO, and HfO,-based solid solutions, Fiz. Tverdogo Tela (leningrad 1998)747-752 20(1978)528-53 [20] Yu. K. Voronko, A B Kudryavtsev, VV.Osiko, A.A. Sobol, in: Kh [7] Yu. K. Voronko, B.V. Ignatiev, E.E. Lomonova, V.V. Osiko, A.A Bagdasarov, E.B. Lube(Eds ) Study of Melt Structure and Cryst Sobol, Raman study of high-temperature phase transformations in gh Temperature Raman ZrO and HfO based solid solutions, Fiz. T verdogo Tela. (Leni Growth of Crystals, voL. 16, Consultant Bureau, New York, 1991 grad22(19801034-1038. [8] V.V. Osiko, Yu. K. Voronko, A.A. Sobol, Spectroscopic Investigation [21] G. Teufer, The crystal structure of tetragonal zirconia, Acta Crystal- of Defect Structure and Structure Transformations in lonic Crystals. logr.15(1962)1187 voL. 10. Springer, Berlin, 1984, pp. 37-86 [22] Yu. K. Voronko, A.A. M. Tatarintsev, New aspects of the [9] C. Perry, D. Liu, R.P. Ingel, Phase characterization of partially tetragonal phases form ZrO-Ln,O3 and HfO - O3 IV stabilized zirconia by Raman spectroscopy, J. Am. Ceram Soc. 68 Euro Ceramics. Part Editoriale Faenza Editrice S.P.A (1985)184-187 aly,1995,p.361. [10] D. Michel, Y. Perez, M. Jorba, R. Collonge, Study by Raman [23] H.G. Scott, Phase relationships in the zirconia-yttria system, JMater. of order-disorder phenomena oc Sci.10(1975)1527-1535 oxides with fluorite-related structures, J. Raman Spectrosc. 5(1976) [24] A H. Heuer, R Chaim, V Lanter, The displacive cubic tetragonal 163-180. transformation in ZrO2 alloys, Acta Metallogr 35(1987)661-667 [11] Yu. K. Voronko, A.B. Gorbachev, A.A. Sobol, Raman scattering and [25] C. Pecharroman, M Ocana, CJ. Serna, Optical constants of tetragonal structure of cubic solid solutions based on zirconium and hafnium and cubic zirconias in the infrared, J. AppL. Phys. 80(1996) dioxides, Phys. Solid State 37(1995)1055-1062 3479-3483 [12] Yu. K. Voronko, M.A. Zufarov, B.V. Ignatiev, E.E. Lomonova, [26] A P. Mirgorodsky, M B. Smirnov, P.E. Quintard, Phonon spectra V.V. Osiko, A.A. Sobol, Raman scattering in tetragonal evolution and soft mode instabilities of zirconia during the c-t-m Gd2O3 and ZrO2-Eu2O3, Single Cryst. Opt. Spectrosc. 51 transformation, J Phys. Chem. Solids 60(1999)985-992 15-316. TransL. Optika i Spectroscopiya (Leningrad) 51 [27 D. Simeone, J. L. Bechade, D. Gosset, A. Chevarier, P. Daniel, H. Piliaire, G. Baldinozzi, Investigation on the zirconia phase transition [13] M. Ishigame, T. Sacurai, Temperature dependence of the Raman under irradiation. J Nucl. Mater. 282(2000)171-181 ectra of ZrO2, J. Am. Ceram. Soc. 60(1977)367-369. [28] P. Bouvier, H.C. Gupta, G. Lucazeau, Zone center phonon frequencies [14] A. Feinberg, C.H. Perry, Structural disorder and phase transitions n tetragonal zirconia: lattice dynamical study and new assignment in ZrO2-Y2O3 system, J. Phys. Chem. Solids 42 (1981) roposition, J. Phys. Chem. Solids 62(2001)873-879. 513-518 [29]T Merle, R. Guinebretiere, A. Mirgorodsky, P. Quintard, Polarized [15] C H. Perry, F. Lu, D. W.Liu, B. Alzyab, Phonons and phase transitions Raman spectra of tetragonal pure ZrO2 measured on epitaxial films. in zirconia, J. Raman Spectrosc. 21(1990)577-584. Phys.Rev.B65(2002)144302-1-144302-6[3] A. Heuer, M. Ruhle, D.B. Marshall, On the thermoplastic martensitic transformation in tetragonal zirconia, J. Am. Ceram. Soc. 73 (1990) 1084–1093. [4] V. Lanteri, R. Chaim, A.H. Heuer, On the microstructures resulting from the diffusionless cubic ! tetragonal transformation in ZrO2 – Y2O3 alloys, J. Am. Ceram. Soc. 69 (1986) 258–261. [5] T. Sakuma, Y. Yoshisava, H. Suto, The microstructure and mechanical properties of yttria-stabilized zirconia prepared by arc melting, Mater. Sci. 20 (1985) 2399–2405. [6] V.I. Aleksandrov, Yu.K. Voronko, B.V. Ignatiev, E.E. Lomonova, V.V. Osiko, A.A. Sobol, Raman study of structural transformation in ZrO2 and HfO2-based solid solutions, Fiz. Tverdogo Tela (Leningrad) 20 (1978) 528–534. [7] Yu.K. Voronko, B.V. Ignatiev, E.E. Lomonova, V.V. Osiko, A.A. Sobol, Raman study of high-temperature phase transformations in ZrO2 and HfO2-based solid solutions, Fiz. Tverdogo Tela. (Lenin￾grad) 22 (1980) 1034–1038. [8] V.V. Osiko, Yu.K. Voronko, A.A. Sobol, Spectroscopic Investigation of Defect Structure and Structure Transformations in Ionic Crystals, vol. 10, Springer, Berlin, 1984, pp. 37–86. [9] C. Perry, D. Liu, R.P. Ingel, Phase characterization of partially stabilized zirconia by Raman spectroscopy, J. Am. Ceram. Soc. 68 (1985) 184–187. [10] D. Michel, Y. Perez, M. Jorba, R. Collonge, Study by Raman spectroscopy of order–disorder phenomena occurring in some binary oxides with fluorite-related structures, J. Raman Spectrosc. 5 (1976) 163–180. [11] Yu.K. Voronko, A.B. Gorbachev, A.A. Sobol, Raman scattering and structure of cubic solid solutions based on zirconium and hafnium dioxides, Phys. Solid State 37 (1995) 1055–1062. [12] Yu.K. Voronko, M.A. Zufarov, B.V. Ignatiev, E.E. Lomonova, V.V. Osiko, A.A. Sobol, Raman scattering in tetragonal ZrO2 – Gd2O3 and ZrO2 –Eu2O3, Single Cryst. Opt. Spectrosc. 51 (1981) 315–316. Transl. Optika i Spectroscopiya (Leningrad) 51 (1981) 569–571. [13] M. Ishigame, T. Sacurai, Temperature dependence of the Raman spectra of ZrO2, J. Am. Ceram. Soc. 60 (1977) 367–369. [14] A. Feinberg, C.H. Perry, Structural disorder and phase transitions in ZrO2 –Y2O3 system, J. Phys. Chem. Solids 42 (1981) 513–518. [15] C.H. Perry, F. Lu, D.W. Liu, B. Alzyab, Phonons and phase transitions in zirconia, J. Raman Spectrosc. 21 (1990) 577–584. [16] B. Alzyab, C.H. Perry, R.P. Ingel, High-pressure phase transitions in zirconia and yttria-doped zirconia, J. Am. Ceram. Soc. 79 (1987) 760–765. [17] Yu.K. Voronko, A.A. Sobol, L.I. Tzimbal, Cubic-to-tetragonal phase transitions in ZrO2 –Ln2O3 and HfO2 –Ln2O3 solid solutions, Inorg. Mater. 34 (1998) 439–446. [18] P. Bouvier, G. Lucazeau, Raman spectra and vibrational analysis of nanometric tetragonal zirconia under high pressure, J. Phys. Chem. Solids 61 (2000) 569–578. [19] Yu.K. Voronko, A.A. Sobol, S.N. Ushakov, L.I. Tzimbal, Formation of tetragonal structure in partially stabilized zirconia, Inorg. Mater. 30 (1998) 747–752. [20] Yu.K. Voronko, A.B. Kudryavtsev, V.V. Osiko, A.A. Sobol, in: Kh.S. Bagdasarov, E.B. Lube (Eds.), Study of Melt Structure and Crystal￾lization Processes by High Temperature Raman Spectroscopy, Growth of Crystals, vol. 16, Consultant Bureau, New York, 1991, pp. 199–216. [21] G. Teufer, The crystal structure of tetragonal zirconia, Acta Crystal￾logr. 15 (1962) 1187. [22] Yu.K. Voronko, A.A. Sobol, V.M. Tatarintsev, New aspects of the tetragonal phases formation in ZrO2 –Ln2O3 and HfO2 –Ln2O3, IV Euro Ceramics, Part II, Gruppo Editoriale Faenza Editrice S.p.A, Italy, 1995, p. 361. [23] H.G. Scott, Phase relationships in the zirconia–yttria system, J. Mater. Sci. 10 (1975) 1527–1535. [24] A.H. Heuer, R. Chaim, V. Lanteri, The displacive cubic ! tetragonal transformation in ZrO2 alloys, Acta Metallogr. 35 (1987) 661–667. [25] C. Pecharroman, M. Ocana, C.J. Serna, Optical constants of tetragonal and cubic zirconias in the infrared, J. Appl. Phys. 80 (1996) 3479–3483. [26] A.P. Mirgorodsky, M.B. Smirnov, P.E. Quintard, Phonon spectra evolution and soft mode instabilities of zirconia during the c–t–m transformation, J. Phys. Chem. Solids 60 (1999) 985–992. [27] D. Simeone, J.L. Bechade, D. Gosset, A. Chevarier, P. Daniel, H. Piliaire, G. Baldinozzi, Investigation on the zirconia phase transition under irradiation, J. Nucl. Mater. 282 (2000) 171–181. [28] P. Bouvier, H.C. Gupta, G. Lucazeau, Zone center phonon frequencies in tetragonal zirconia: lattice dynamical study and new assignments proposition, J. Phys. Chem. Solids 62 (2001) 873–879. [29] T. Merle, R. Guinebretiere, A. Mirgorodsky, P. Quintard, Polarized Raman spectra of tetragonal pure ZrO2 measured on epitaxial films, Phys. Rev. B 65 (2002) 144302-1–144302-6. 1112 A.A. Sobol, Y.K. Voronko / Journal of Physics and Chemistry of Solids 65 (2004) 1103–1112