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High Pressure Research
An International Journal
Volume 20, 2001 - Issue 1-6
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Original Articles

Characterization of ultrafine zirconia and iron oxide powders prepared under hydrothermal conditions

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Pages 255-264 | Received 10 Jan 2000, Accepted 25 Feb 2000, Published online: 19 Aug 2006
 

Abstract

Nanocrystalline zirconia (6-20 nm) and iron oxide (20-80 nm) powders were produced by hydrothermal treatment of corresponding hydroxides and nitrate solutions. The synthesis parameters (temperature, duration, concentration) allow fabrication of ultrafine oxide powders with various particle size and morphology. The smallest particles were produced by short-time (4-7 s) treatment of nitrate solutions (PH ≈ 1). Prepared nanocrystalline powders exhibit high activity in model solid state reactions.

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