Title :
Processing and characterization of new members of Pb-K-niobate series
Author :
Jana, P. ; Kallur, V.A. ; Drummond, M.A. ; Nigli, S. ; Pandey, R.K.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
30 Aug-2 Sep 1992
Abstract :
It is shown that by mixing the two ferroelectric compounds lead niobate and potassium niobate in different proportions a whole set of new materials can be obtained. Some of these compositions are found to be ferroelectric in nature and behave in accordance with the amount of potassium doping in the lead niobate. The new materials have the general formula of Pb1-xK2xNb2O6. Four new members of this class of materials have been processed, with x values of 0.23, 0.34, 0.43, and 0.50. The densified ceramic samples have been characterized, and it has been found that the first two are ferroelectric while the other two are not. Results for PKN with x=0.23 and x=0.34 are tabulated in comparison with the standard material with x=0.20
Keywords :
ceramics; ferroelectric Curie temperature; ferroelectric materials; lattice constants; lead compounds; permittivity; potassium compounds; powder technology; Curie point; Pb1-xK2xNb2O6; X-ray diffraction; ceramic; dielectric constant; ferroelectric compounds; lattice parameters; niobate; powder technology; Acoustic materials; Acoustic waves; Ceramics; Crystalline materials; Crystals; Ferroelectric materials; Optical surface waves; Solid state circuits; Surface acoustic wave devices; Thermal conductivity;
Conference_Titel :
Applications of Ferroelectrics, 1992. ISAF '92., Proceedings of the Eighth IEEE International Symposium on
Conference_Location :
Greenville, SC
Print_ISBN :
0-7803-0465-9
DOI :
10.1109/ISAF.1992.300713
