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Doped zirconia nanopowders made in microwave – pressure reactor

Agnieszka Opalińska ^1,2, Witold Łojkowski ¹

1. Polish Academy of Sciences, Institute of High Pressure Physics (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland
2. Warsaw University of Technology, Faculty of Materials Science and Engineering (InMat), Wołoska 141, Warszawa 02-507, Poland

Abstract

Nanocrystalline materials have attracted due to their unique physical properties, such as superior plasticity of nanoceramic or new optical properties.

In my work a high pressure microwave reactor is using to synthesized nanocrystalline zirconia powders doped with rare-earth elements.

This technology permits a synthesis of nanopowders in short time not limited by thermal inertia of the vessel. Microwave heating permits to avoid contact of the reactants with heating elements, and is thus particularly well suited for synthesis of doped nanopowders in high purity conditions.

Aim of my work is to obtain doped nanocrystalline powders of high purity for optoelectronic applications. Zirconia nanopowders with particle size in range 5-100nm are obtained under different experimental conditions such as pH solutions, temperature, pressure and reaction time. Powder properties including content of crystalline phase, crystallite size, particle size distribution, degree of agglomeration, etc. are investigation.

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Doped zirconia nanopowders made in microwave – pressure reactor

Presentation: Oral at E-MRS Fall Meeting 2007, Cost D30 Meeting, by Agnieszka Opalińska See On-line Journal of E-MRS Fall Meeting 2007 Submitted: 2007-09-06 16:45 Revised: 2009-06-07 00:44

Presentation: Oral at E-MRS Fall Meeting 2007, Cost D30 Meeting, by Agnieszka Opalińska
See On-line Journal of E-MRS Fall Meeting 2007

Submitted: 2007-09-06 16:45 Revised: 2009-06-07 00:44