Advertisement

Journal of Materials Science

, Volume 25, Issue 2, pp 1013–1017 | Cite as

Synthesis of monodisperse Ta2O5 powder

  • Jau-Ho Jean
Papers

Abstract

Narrow-sized, unagglomerated and spherical Ta2O5 powder was prepared by the controlled hydrolysis of tantalum pentaethoxide, Ta(OC2H5)5, in ethanol with a dispersant (hydroxypropyl cellulose) present. X-ray diffraction results showed that the as-prepared powder was amorphous and became crystalline after firing at 800° C in air for 2h. The particle size and the degree of agglomeration decrease with increasing hydroxypropyl cellulose concentration.

Keywords

Ethoxide Induction Time Dispersion Polymerization Typical Scanning Electron Microscope Hydroxypropyl Cellulose 
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.
    H. K. BOWEN, Mater. Sci. Engng. 44 (1980) 1.CrossRefGoogle Scholar
  2. 2.
    E. A. BARRINGER and H. K. BOWEN, J. Amer. Ceram. Soc. 65 (1982) C–199.CrossRefGoogle Scholar
  3. 3.
    J. H. JEAN and T. A. RING, Bull. Amer. Ceram. Soc. 65 (1986) 1574.Google Scholar
  4. 4.
    M. D. SACKS and T. Y. TSENG, J. Amer. Ceram. Soc. 67 (1984) 526.CrossRefGoogle Scholar
  5. 5.
    Idem, ibid. 67 (1984) 532.CrossRefGoogle Scholar
  6. 6.
    D. L. CATONE and E. MATIJEVIC, J. Colloid Interface Sci. 48 (1974) 291.CrossRefGoogle Scholar
  7. 7.
    E. MATIJEVIC and P. SCHEINER, ibid. 63 (1978) 509.CrossRefGoogle Scholar
  8. 8.
    N. B. MILIC and E. MATIJEVIC, ibid. 85 (1983) 306.CrossRefGoogle Scholar
  9. 9.
    E. MATIJEVIC, A. D. LINDSRY and S. KRATOHVIC, ibid. 36 (1971) 273.CrossRefGoogle Scholar
  10. 10.
    W. STOBER, A. FINK and E. BOHN, ibid. 26 (1968) 62.CrossRefGoogle Scholar
  11. 11.
    R. H. HEISTAND, II and Y. H. CHIA, Mater. Res. Soc. Symp. Proc. 73 (1986) 93.CrossRefGoogle Scholar
  12. 12.
    S. C. DANFORTH and J. HAGGERTY, J. Amer. Ceram. Soc. 66 (1983) C–58.Google Scholar
  13. 13.
    M. VISCA and E. MATIJEVIC, J. Colloid Interface Sci. 68 (1979) 308.CrossRefGoogle Scholar
  14. 14.
    B. J. INGEBRETHSEN and E. MATIJEVIC, J. Aerosol Sci. 11 (1980) 271.CrossRefGoogle Scholar
  15. 15.
    M. AKINC and K. RICHARDSON, Mater. Res. Soc. Symp. Proc. 73 (1986) 99.CrossRefGoogle Scholar
  16. 16.
    ANN BEGLEY-HARDY, private communication.Google Scholar
  17. 17.
    V. K. LAMER and R. H. DINGER, J. Amer. Chem. Soc. 72 (1950) 4847.CrossRefGoogle Scholar
  18. 18.
    T. Th. G. OVERBEEK, Adv. Colloid Interface Sci. 15 (1982) 251.CrossRefGoogle Scholar
  19. 19.
    K. E. J. BARRETT, “Dispersion Polymerization in Organic Media” (Wiley, London, 1975) 115–220.Google Scholar
  20. 20.
    CRC Handbook of Chemistry and Physics, 66th Edition edited by R. C. Weast (CRC Press, Boca Raton, Florida, 1986) 18–149.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1990

Authors and Affiliations

  • Jau-Ho Jean
    • 1
  1. 1.Engelhard CorporationEdisonUSA

Personalised recommendations