Advertisement

Glass Physics and Chemistry

, Volume 35, Issue 4, pp 431–435 | Cite as

Preparation and thermal transformations of nanocrystals in the LaPO4-LuPO4-H2O system

  • A. V. OsipovEmail author
  • L. P. Mezentseva
  • I. A. Drozdova
  • S. K. Kuchaeva
  • V. L. Ugolkov
  • V. V. Gusarov
Article

Abstract

Powders of nanosized particles of individual and mixed lanthanum and lutetium orthophosphates are synthesized. The grain growth process is studied in the temperature range of 200–1100°C. Temperature and concentration regions of existence of the solid solutions based on hexagonal and monoclinic forms of LaPO4 as well as on tetragonal LuPO4 are determined.

Keywords

Differential Scanning Calorimetry Curve Glass Physic LaPO4 Monoclinic Form Thermal Gravimetry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Bondar’, I.A., Domanskii, A.I., Mezentseva, L.P., Degen, M.G., and Kalinina, N.E., Physicochemical Investigations of Rare-Earth Orthophosphates, Zh. Neorg. Khim., 1976, vol. 21, no. 8, pp. 2045–2050 [J. Inorg. Chem. (Engl. transl.), 1976, vol. 21, no. 8, p. 1126].Google Scholar
  2. 2.
    Mezentseva, L.P., Kosulina, G.I., Grebenshchikov, R.G., and Udalov, Yu.P., Diagrammy sostoyaniya sistem tugoplavkikh oksidov. Spravochnik. Vypusk 5. Dvoinye sistemy. Chast’ 2 (A Handbook on Phase Diagrams of High-Melting Oxide Systems: Binary Systems), Galakhov, F.Ya., Ed., Leningrad: Nauka, 1986, issue 5, part 2 [in Russian].Google Scholar
  3. 3.
    Hováth, I., Bondar, I.A., and Mezentseva, L.P., Thermochemistry of the Hydrated Rare-Earth Orthophosphates, J. Therm. Anal., 1988, vol. 33, no. 3, pp. 755–760.CrossRefGoogle Scholar
  4. 4.
    Osipov, A.V., Mezentseva, L.P., Drozdova, I.A., Kuchaeva, S.K., Ugolkov, V.L., and Gusarov, V.V., Crystallization and Thermal Transformations in Nanocrystals of the YPO4-LuPO4-H2O System, Fiz. Khim. Stekla, 2007, vol. 33, no. 2, pp. 99–104 [Glass Phys. Chem. (Engl. transl.), 2007, vol. 33, no. 2, pp. 169–173].Google Scholar
  5. 5.
    Mezentseva, L.P., Phase Diagrams of the Ln 2O3-P2O5 Binary Systems and Solid Solutions of Rare-Earth Element Phosphates, Extended Abstract of Candidate’s Dissertation, Leningrad: Institute of Silicate Chemistry of the USSR Academy of Sciences, 1983 [in Russian].Google Scholar
  6. 6.
    Fang, Y.P., Xu, A.-W., Song, R.-Q., Zhang, H.-X., You, L.-P., Yu, J.C., and Liu, H.-Q., Systematic Synthesis and Characterization of Single-Crystal Lanthanide Orthophosphate Nanowires, J. Am. Chem. Soc., 2003, vol. 125, no. 51, pp. 16 025–16 034.CrossRefGoogle Scholar
  7. 7.
    ICDD, PDF 4-635 (LaPO 4 · nH 2 O); 32-493 (LaPO 4); 20-654 (LuPO 4 · 3H 2 O); 43-3 (LuPO 4).Google Scholar
  8. 8.
    Osipov, A.V., Rumyantseva, A.G., and Maslennikova, T.P., Preparation of Ceramics Based on Nanocrystals of Individual and Mixed Orthophosphates of Lanthanum, Holmium, Lutecium, and Yttrium, in Problemy sozdaniya i ekspluatatsii novykh tipov elektroenergeticheskogo oborudovaniya (Problems of Development and Operation of New Types of Electric Power Equipment), St. Petersburg: Department of Electric Power Problems of the Russian Academy of Sciences, 2006, vol. 7, pp. 166–170 [in Russian].Google Scholar
  9. 9.
    Osipov, A.V., Drozdova, I.A., Mezentseva, L.P., and Gusarov, V.V., Growth Kinetics of Nanosized Rare-Earth Orthophosphates and Their Solid Solutions, and Ceramics Based on Them, in Book of Abstracts of the Topical Meeting of the European Ceramics Society “Nanoparticles, Nanostructures, and Nanocomposites,” St. Petersburg, 2004, pp. 62–63.Google Scholar
  10. 10.
    Boakye, E.E., Mogilevsky, P., and Hay, R.S., Synthesis of Nanosized Spherical Rhabdophane Particles, J. Am. Ceram. Soc., 2005, vol. 88, no. 10, pp. 2740–2746.Google Scholar
  11. 11.
    Vorokh, A., Disordered Atomic Structure of Cadmium Sulfide Nanoparticles, Extended Abstract of Candidate’s Dissertation, Yekaterinburg: Institute of Solid State Chemistry, Ural Division of the Russian Academy of Sciences, 2009 [in Russian].Google Scholar
  12. 12.
    Yan, Z.-G., Zhang, Y.-W., You, L.-P., Si, R., and Yan, C.-H., General Synthesis and Characterization of Monocrystalline 1D-Nanomaterials of Hexagonal and Orthorhombic Lanthanide Orthophosphate Hydrate, J. Cryst. Growth, 2004, vol. 262, nos. 1–4, pp. 408–414.CrossRefADSGoogle Scholar
  13. 13.
    Sveshnikova, V.N. and Ginzburg, V.A., Investigation of the Ternary “Cerium Phosphate-Phosphoric Acid-Water” System at 70°C, Zh. Neorg. Khim., 1962, vol. 7, no. 5, pp. 1169–1173.Google Scholar
  14. 14.
    Khorvat, I., Bondar’, I.A., and Mezentseva, L.P., Thermal Stability and Dehydration Reversibility of Lanthanide Phosphates LnPO4 · 2H2O, Zh. Neorg. Khim., 1986, vol. 31, no. 9, pp. 2250–2253.Google Scholar
  15. 15.
    Mooney, R.C.L., X-Ray Diffraction Study of Cerium Phosphate and Related Crystals: I. Hexagonal Modification, Acta Crystallogr., 1950, vol. 3, no. 5, pp. 337–340.CrossRefGoogle Scholar
  16. 16.
    Jonasson, R.G. and Vance, E.R., DTA Study of the Rhabdophane to Monazite Transformation in Rare-Earth (La-Dy) Phosphates, Thermochim. Acta, 1986, vol. 108, pp. 65–72.CrossRefGoogle Scholar
  17. 17.
    Glorieux, B., Matecki, M., Fayon, F., Coutures, J.P., Palau, S., Douy, A., and Peraudeau, G., Study of Lanthanum Orthophosphates Polymorphism in View of Actinide Conditioning, J. Nucl. Mater., 2004, vol. 326, nos. 2–3, pp. 156–162.CrossRefADSGoogle Scholar
  18. 18.
    Hikichi, Y. and Nomura, T., Melting Temperatures of Monazite and Xenotime, J. Am. Ceram. Soc., 1987, vol. 70, no. 10, pp. 252–253.CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • A. V. Osipov
    • 1
    Email author
  • L. P. Mezentseva
    • 1
  • I. A. Drozdova
    • 1
  • S. K. Kuchaeva
    • 1
  • V. L. Ugolkov
    • 1
  • V. V. Gusarov
    • 1
  1. 1.Grebenshchikov Institute of Silicate ChemistryRussian Academy of SciencesSt. PetersburgRussia

Personalised recommendations