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Synthesis of monodisperse Ta2O5 powder

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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.

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  1. Jau-Ho Jean

    Present address: Alcoa, Alcoa Technical Center, Alcoa Center, Pennsylvania, 15069, USA

Authors and Affiliations

  1. Engelhard Corporation, Edison, New Jersey, 08818, USA

    Jau-Ho Jean

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  1. Jau-Ho Jean
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Jean, JH. Synthesis of monodisperse Ta2O5 powder. J Mater Sci 25, 1013–1017 (1990). https://doi.org/10.1007/BF03372195

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