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


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.


Oxide Polymer Hydrolysis Hydrated Tantalum 
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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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