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http://hdl.handle.net/1942/2824
Title: | Phase formation of perovskite lead magnesium niobate prepared by an aqueous solution-gel method | Authors: | STORMS, Annick VAN BAEL, Marlies VAN DEN RUL, Heidi VANHOYLAND, Geert MULLENS, Jules VAN POUCKE, Lucien |
Issue Date: | 2004 | Publisher: | TRANS TECH PUBLICATIONS LTD | Source: | EURO CERAMICS VIII, PTS 1-3. p. 347-350. | Series/Report: | KEY ENGINEERING MATERIALS | Series/Report no.: | 264-268 | Abstract: | Perovskite Pb(Mg0.33Nb0.67)O-3 (PMN) was synthesized via an aqueous solution-gel route. A stable trimetallic aqueous precursor solution was prepared by combining a peroxo-citrato-Nb(V) complex with acetates of lead and magnesium at the appropriate pH. Evaporation of the water resulted in an amorphous gel, which was converted into the oxide phase by thermal decomposition of the gel structure. The preparation of the pure perovskite phase is hindered by the formation of a stable pyrochlore phase (Pb1.83Nb1.71Mg0.29O6.39) prior to the PMN crystallization. When a thermal shock heating technique was applied, pure perovskite PMN was obtained. | Notes: | Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium.Storms, A, Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, Univ Campus, B-3590 Diepenbeek, Belgium. | Keywords: | PMN; perovskite; pyrochlore; aqueous solution-gel; thermal shock | Document URI: | http://hdl.handle.net/1942/2824 | ISI #: | 000223059700082 | Category: | C1 | Type: | Proceedings Paper | Validations: | ecoom 2005 |
Appears in Collections: | Research publications |
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