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Microwave driven hydrothermal synthesis of Pr-doped zirconia nanopowders

Agnieszka Opalińska 2,  Ewa Grzanka 2,3,  Adam M. Presz 2,  Cristina Leonelli 1,  Witold Łojkowski 2

1. University of Modena and Reggio Emilia, Via Campi 183, Modena 41100, Italy
2. Polish Academy of Sciences, High Pressure Research Center (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland
3. Warsaw University, Faculty of Physics, Hoża 69, Warszawa 00-681, Poland

Abstract

Zirconia is an important ceramic material with useful mechanical, thermal, optical and electrical properties.
Nanokrystalline zirconia and Pr-doped zirconia powders were synthesized via a hydrothermal method using a microwave reactor under pressure up to 5,5 MPa and temperatures up to 250 C. Oxides nanopowders with particle size in access of 5 to 100nm and Pr content (0 to 20mol%) were obtained under different experimental conditions such as pH solution, temperature, pressure and reaction time. Power properties including crystalline phase, crystalline size, particle size distribution, degree of agglomeration and luminescence properties were investigated.
Aim of this work is to obtain nanocrystalline powders doped with rare earth element for optoelectronic applications.
Microwave hydrothermal synthesis is versatile technology to obtain doped zirconia nanopowders of high purity.

 

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Presentation: poster at E-MRS Fall Meeting 2003, Symposium F, by Agnieszka Opalińska
See On-line Journal of E-MRS Fall Meeting 2003

Submitted: 2003-05-21 16:20
Revised:   2009-06-08 12:55