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Journal of Materials Science

, Volume 21, Issue 8, pp 2771–2774 | Cite as

Formation of monodispersed Ta2O5 powders

  • Takashi Ogihara
  • Tadashi Ikemoto
  • Nobuyasu Mizutani
  • Masanori Kato
  • Yukuaki Mitarai
Papers

Abstract

The Ta2O5 powders synthesized by the hydrolysis of tantalum pentaethoxide, Ta(OC2H5)5 in alcoholic solution were monodispersed fine oxide particles, which were a uniform, spherical shape, non-agglomerate, and had a narrow size distribution. They grew to 1.2μm after ageing for 1 h after hydrolysis. Powder X-ray diffraction and differential thermal analysisthermogravimetric analysis showed the particles were amorphous and hydrated. These particles lost the water at 290° C and gave well-crystalline Ta2Oμ at 740° C. Throughout these thermal processes, the particle morphology was kept almost the same.

Keywords

Oxide Polymer Hydrolysis Hydrated Tantalum 
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.

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Copyright information

© Chapman and Hall Ltd. 1986

Authors and Affiliations

  • Takashi Ogihara
    • 1
  • Tadashi Ikemoto
    • 1
  • Nobuyasu Mizutani
    • 1
  • Masanori Kato
    • 1
  • Yukuaki Mitarai
    • 2
  1. 1.Department of Inorganic Materials, Faculty of EngineeringTokyo Institute of TechnologyTokyoJapan
  2. 2.Central Research LaboratorySumitomo Metal Mining Co., Ltd.ChibaJapan

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