Method of producing bismuth layered compound

Details Method of producing bismuth layered compound Method of producing bismuth layered compound

1996-03-26

1999-08-10

Bos, Steven

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C01G 2900, C01G 3500, C01F 100

Patent

active

059355492

ABSTRACT:
A process is disclosed for making a bismuth layered compound, such as Bi.sub.2 SrTa.sub.2 O.sub.9, by forming mixture of Bi.sub.2 O.sub.3, Ta.sub.2 O.sub.5 and a compound selected from strontium hydroxide or strontium nitrate, grinding the mixture, shaping the ground mixture at elevated temperature and pressure to form a pellet of bismuth strontium tantalum oxide having a fluorite structure and then heating the pellet in a flow of oxygen at 800-1000.degree. C. until a single phase bismuth layered compound is obtained.

REFERENCES:
patent: 5426075 (1995-06-01), Perino et al.
patent: 5629267 (1997-05-01), Ikegawa et al.
patent: 5630872 (1997-05-01), Ogi et al.
patent: 5648114 (1997-07-01), Paz De Araujo et al.

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