Yttrium-Aluminum Garnet Synthesized in the Medium of Supercritical Fluids

Tadeusz Chudoba 1,  Ed Lester 2,  Martyn Poliakoff ,  Witold Łojkowski 1,  Jun Lee ,  Ewa Grzanka 1,  Adam Presz 1

1. Polish Academy of Sciences, Institute of High Pressure Physics (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland
2. University of Nottingham, Nottingham, United Kingdom

Abstract

The pure powder of the yttrium-aluminum garnet (YAG) was obtained in a one step process utilizing supercritical (SCR) liquids in a flow reactor. Acetates (and acetyloacetates) of Yttrium3+ and Aluminum3+ in aqueous-alcoholic solutions as a starting materials were used. The obtaining product was characterized using XRD, SEM, TG, BET and helium picnometry. Manufactured in this way YAG has high regular microstructure and very low level of agglomeration. High-Pressure-Low-Temperature-Sintering of this powder was investigated.

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Presentation: Poster at E-MRS Fall Meeting 2007, Symposium A, by Tadeusz Chudoba
See On-line Journal of E-MRS Fall Meeting 2007

Submitted: 2007-05-14 15:53
Revised:   2007-05-14 16:05
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