Cho, In-Sun Kang, Sang-Ku Kim, Dong-Wan Hong, Kug-Sun 2024-01-21T03:03:55Z 2024-01-21T03:03:55Z 2021-09-01 2006-06 0955-2219 https://pubs.kist.re.kr/handle/201004/135498 (1-x)beta-Ca2P2O7-xTiO(2) were prepared by solid-state reaction. The mixture behavior and microwave dielectric properties were investigated using X-ray powder diffraction and a network analyzer, respectively. X-ray powder diffraction patterns showed that beta-Ca2P2O7 and TiO2 existed in a mixture form, which was also confirmed by SEM analysis. It was shown that TiO2, which has positive temperature coefficient of the resonant frequency (tau(f)), compensated the negative tau(f) of beta-Ca2P2O7 (-53 ppm/degrees C) through mixture formation. The variation of dielectric properties with a function of TiO2 contents could be explained using mixture rule. In the 0.3 < x < 0.4 regions, tau(f) value could be successfully reduced almost zero. In particular, at x=0.3, good microwave dielectric properties was obtained: Q x f = 44,000, epsilon(r) = 10.9, and tau(f) = -11 ppm/degrees C. (c) 2005 Elsevier Ltd. All rights reserved. English ELSEVIER SCI LTD CONDUCTIVITY CONSTANTS Mixture behavior and microwave dielectric properties of (1-x)Ca2P2O7-xTiO(2) Article 10.1016/j.jeurceramsoc.2005.09.050 1 JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, v.26, no.10-11, pp.2007 - 2010 JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 26 10-11 2007 2010 scie scopus 000237833500054 Materials Science, Ceramics Materials Science Article; Proceedings Paper CONDUCTIVITY CONSTANTS inclusions dielectric properties TiO2