Kweon, Sang-Hyo Im, Mir Han, Guifang Kim, Jin-Seong Nahm, Sahn Choi, Ji-Won Hwang, Seong-Ju 2024-01-20T12:32:21Z 2024-01-20T12:32:21Z 2021-08-31 2013-05 0955-2219 https://pubs.kist.re.kr/handle/201004/128145 Dense KCa2Nb3O10 (KCN) oxides were synthesized and their dielectric properties were investigated. A homogeneous KCN phase was formed in the specimen sintered above 1300 degrees C, but a CaNb2O6 secondary phase was developed in the specimen sintered at 1400 degrees C, as result of the evaporation of K2O. The KCN oxides sintered at 1375 C showed a high relative density that was 97.1% of the theoretical density. Furthermore, liquid-phase-assisted abnormal grain growth occurred during sintering. The dielectric constant of this KCN oxide was 46, with a low dielectric loss of 0.9% at 100 kHz; these values are smaller than those that were previously reported. Complex impedance analysis indicated that the resistivity of the KCN oxide was very low, probably as a result of the presence of K+ ions between the layers, and this could be the origin of the low-frequency dispersion of the KCN oxides. (C) 2012 Elsevier Ltd. All rights reserved. English ELSEVIER SCI LTD (BA,SR)TIO3 THIN-FILMS DEPOSITION OXIDE Sintering behavior and dielectric properties of KCa2Nb3O10 ceramics Article 10.1016/j.jeurceramsoc.2012.11.017 1 JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, v.33, no.5, pp.907 - 911 JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 33 5 907 911 scie scopus 000314332600002 2-s2.0-84872340447 Materials Science, Ceramics Materials Science Article (BA,SR)TIO3 THIN-FILMS DEPOSITION OXIDE Dielectrics Layered perovskite Low loss Multilayer ceramic capacitor