Journal of Thermal Analysis and Calorimetry

, Volume 87, Issue 3, pp 747–751

Synthesis and characterization of Pb1–xLaxTiO3 nanocrystalline powders

  • A. Mesquita
  • M. I. B. Bernardi
  • L. J. Q. Maia
  • V. R. Mastelaro
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Abstract

Pb1–xLaxTiO3 (PLT) nanocrystalline powders were obtained by polymeric precursor method. The samples were analyzed by differential scanning calorimetry (DSC) and thermogravimetry (TG) techniques to characterize properly the distinct thermal events occurring during synthesis. The X-ray diffraction patterns show a tetragonal structure for the samples with x=0.10 and 0.15. An increase of the lanthanum concentration to x=0.20 led to a highly symmetric structure, cubic on average. The powders obtained at the end of the synthesis had an average particle size of 30 to 70 nm.

Keywords

nanocrystalline powders Pb1–xLaxTiO3 polymeric precursors 

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References

  1. 1.
    Murakami, S, Herren, M, Rau, D, Sakurai, T, Morita, M 1999J. Lumin.83/84215CrossRefGoogle Scholar
  2. 2.
    Arora, AK, Tandon, RP, Mansingh, P 1992Ferroelectrics1329Google Scholar
  3. 3.
    Utsunomiya, T 1994Jpn. J. Appl. Phys.335440CrossRefGoogle Scholar
  4. 4.
    Sternberg, A 1992Ferroelectrics13429Google Scholar
  5. 5.
    Okuyama, M, Asano, J-I, Hamakawa, Y 1994Jpn. J. Appl. Phys.335506CrossRefGoogle Scholar
  6. 6.
    Neves, PP, Doriguetto, AC, Mastelaro, VR, Lopes, LP, Mascarenhas, YP, Michalowicz, A, Eiras, JA 2004J. Phys. Chem. B10814840CrossRefGoogle Scholar
  7. 7.
    Berger, S 2005Transac. Indian Inst. Metals581141Google Scholar
  8. 8.
    M. P. Pechini, U.S. Patent 3 330 697 (1967).Google Scholar
  9. 9.
    Cassia-Santos, MR, Souza, AG, Soledade, LEB, Varela, JA, Longo, E 2005J. Therm. Anal. Cal.79415CrossRefGoogle Scholar
  10. 10.
    O. Yamaguchi, A. Narai, T. Komatsu and K. Shimizu, J. Am. Ceram. Soc., 69, C256 (1986) – JCDPS: 40-0099.Google Scholar
  11. 11.
    Natl. Bur. Stand (US), Circ. 539, 5, 39 (1955) – JCPDS: 06-0452.Google Scholar
  12. 12.
    Pontes, FM, Rangel, JH, Leite, ER, Longo, E, Varela, JA, Araújo, EB, Eiras, JA 2001J. Mater. Sci.363565CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • A. Mesquita
    • 1
  • M. I. B. Bernardi
    • 1
  • L. J. Q. Maia
    • 1
  • V. R. Mastelaro
    • 1
  1. 1.Instituto de Física de São CarlosUniversidade de São PauloSão CarlosBrazil

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