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|Title:||Synthesis of ferroelectric perovskites through aqueous-solution techniques|
Aegerter, Michel A.
|Year of Publication:||1993|
|OPUS Source:||Journal of materials science. - 28. 1993, S. 6510-6515|
|SWD key words:||Wässrige Lösung|
|DDC notations:||500 Science|
|Publikation type:||Journal Article|
|Abstract:||The hydrolysis of niobates in aqueous solutions has been applied to the coprecipitation of PbNb2/3Mg1/303 leading to a low temperature synthesis of this ferroelectric relaxor ceramic. The effect of hydrolysis conditions - such as the concentration of bases and acids used, their rates of addition and the nature of the precursors salts - is described. The perovskite phase appears after heating at 350°C and is obtained as a pure phase at 800°C after heat treatment for 1 h. Relaxor ferroelectric ceramics with a high dielectric constant can be obtained by sintering at 1000°C The process has been also applied to the synthesis of other relaxor ceramic compositions such as PZN (PbNb2/3Zn1/303) and PFN (PbNb1/2Fe1/203) compounds.|
|Link to this record:||urn:nbn:de:bsz:291-scidok-23204|
|Date of registration:||3-Sep-2009|
|Faculty:||SE - Sonstige Einrichtungen|
|Department:||SE - INM Leibniz-Institut für Neue Materialien|
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