Sol-gel preparation of lead magnesium niobate (PMN) powders and

Details Sol-gel preparation of lead magnesium niobate (PMN) powders and Sol-gel preparation of lead magnesium niobate (PMN) powders and

1997-07-09

1999-01-12

Bos, Steven

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

556 42, 427226, C01G 2100, C01G 3300, C01F 100, C07F 900

Patent

active

058583238

ABSTRACT:
A method of preparing a lead magnesium niobium oxide (PMN), Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3, precursor solution by a solvent method wherein a liquid solution of a lead-complex PMN precursor is combined with a liquid solution of a niobium-complex PMN precursor, the combined lead- and niobium-complex liquid solutions are reacted with a magnesium-alkyl solution, forming a PMN precursor solution and a lead-based precipitate, and the precipitate is separated from the reacted liquid PMN precursor solution to form a precipitate-free PMN precursor solution. This precursor solution can be processed to form both ferroelectric powders and thin films.

REFERENCES:
patent: 4636248 (1987-01-01), Ogata et al.
patent: 5198269 (1993-03-01), Swartz et al.
Ravindranathan, P., et al., Ferroelectric Letters, 12, 29, 1990, no month, "Solution-Sol-Gel Processing . . . Thin Films".
Boyle, T.J., et al., Ceram. Trans. First Inter. Symp. Adv. Synthesis Processing, 1995, no month, "Synthesis of Novel . . . Obtained From Them".

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