Capacitor materials with low sintering temperature and good dielectric properties

The system 0.7 Pb(Fe 1/2 Nb 1/2 )O 3 -0.3 Pb(Fe 2/3 W 1/3 )O 3 modified with aluminium (Al) and Pb(Zn 1/3 Nb 2/3 )O 3 is used in the manufacture of high-quality materials for ceramic capacitors. The sintering temperature is reduced to 820 by adding Al, and samples show a higher dielectric constant t...

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Veröffentlicht in:	Japanese Journal of Applied Physics 1985-09, Vol.24 (9), p.1168-1170
Hauptverfasser:	TAWFIK, A, ABD-EL-ATI, M. I
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Dielectric properties of solids and liquids Dielectrics, piezoelectrics, and ferroelectrics and their properties Exact sciences and technology Permittivity (dielectric function) Physics
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Zusammenfassung:	The system 0.7 Pb(Fe 1/2 Nb 1/2 )O 3 -0.3 Pb(Fe 2/3 W 1/3 )O 3 modified with aluminium (Al) and Pb(Zn 1/3 Nb 2/3 )O 3 is used in the manufacture of high-quality materials for ceramic capacitors. The sintering temperature is reduced to 820 by adding Al, and samples show a higher dielectric constant than those of the system doped with Pb(Zn 1/3 Nb 2/3 ). The results are explained in terms of the role of lattice defects and the effect of the relative size variations of ions in the modified crystal lattice.
ISSN:	0021-4922 1347-4065
DOI:	10.1143/JJAP.24.1168