Synthesis and characterization of monosized Pb(Sc sub 1/2 , Nb sub 1/2 )O sub 3 powder

Journal Article · Thu Sep 01 04:00:00 EDT 1988 · Advanced Ceramic Materials; (USA)

DOI:https://doi.org/10.1111/j.1551-2916.1988.tb00258.x· OSTI ID:5880501

Feng, Chude; Schulze, W A ^[1]

---

1. Alfred Univ., NY (USA)

Perovskite lead magnesium niobate, PMN, (Pb(Mg{sub 1/3}, Nb{sub 2/3})O{sub 3}) and its homotypes are the relaxor ferroelectrics, but the PMN family has been reported to be quite difficult to synthesize reproducibly using conventional solid-state reaction methods. This paper discusses the preparation of Pb(Sc{sub 1/2}Nb{sub 1/2})O{sub 3} through hydrolysis and coprecipitation methods. The controlled hydrolysis of Nb(OC{sub 2}H{sub 5}){sub 5} dilute solution produced a fine powder. Coprecipitation of a mixed aqueous solution of scandium nitrate Sc(NO{sub 3}){sub 3} and lead nitrate Pb(NO{sub 3}){sub 2} with an excess of (NH{sub 4}){sub 2}CO{sub 3} solution developed a coating layer of Sc{sub 2}(CO{sub 3}){sub 3} and PbCO{sub 3} on the as-hydrolyzed Nb{sub 2}O{sub 5} particle surface. Calcinating the layered particles resulted in a monosized PSN powder.

• OSTI ID: 5880501
• Journal Information: Advanced Ceramic Materials; (USA), Journal Name: Advanced Ceramic Materials; (USA) Vol. 3:5; ISSN 0883-5551; ISSN ACEME
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CALCINATION
CHEMICAL REACTIONS
COPRECIPITATION
CRYSTAL STRUCTURE
DATA
DECOMPOSITION
ELEMENTS
EXPERIMENTAL DATA
FERROELECTRIC MATERIALS
HYDROLYSIS
INFORMATION
LEAD
LYSIS
METALS
MICROSTRUCTURE
NIOBATES
NIOBIUM COMPOUNDS
NUMERICAL DATA
OXYGEN COMPOUNDS
POWDERS
PRECIPITATION
PYROLYSIS
REFRACTORY METAL COMPOUNDS
SCANDIUM
SEPARATION PROCESSES
SOLVOLYSIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS