Synthesis and Microwave Dielectric Properties of SrLaPrTiO (0 ≤ x ≤ 4) Ceramics.

Autor:	Manan, Abdul, Qazi, Ibrahim, Khan, Umer
Předmět:	CERAMIC metals DIELECTRICS SOLID state chemistry SINTERING X-ray diffraction POLARIZABILITY (Electricity)
Zdroj:	Journal of Electronic Materials; May2014, Vol. 43 Issue 5, p1419-1423, 5p, 1 Black and White Photograph, 2 Charts, 7 Graphs
Abstrakt:	Single-phase ceramics in the SrLaPrLaTiO (0 ≤ x ≤ 4) series were processed via a solid-state sintering route. X-ray diffraction analysis revealed single-phase ceramics for all the compositions. The molar volume ( V) decreased while the theoretical density ( ρ) increased with increase in the Pr content. Substitution of Pr decreased the relative permittivity ( ε) and temperature coefficient of resonant frequency ( τ) due to its smaller ionic polarizability ( α) and ionic radius than La. In the present study, ε ≈ 54.2, Q f ≈ 7935 GHz, and τ ≈ −20.3 ppm/°C were achieved for the composition with x = 2 (i.e., SrLaPrTiO). [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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