6H hexagonal structure of low loss Ba3MTiWO9 (M = Mg, Zn) dielectrics

resumo

The crystal structure of Ba3MTiWO9 (M = Mg, Zn) oxides has been found to be 6H hexagonal, space group P6(3)/mmc, parameters of unit cell: a = 5.7943(1) angstrom, c = 14.1642(1) angstrom and a = 5.7993(1) angstrom, c = 14.1626(1) angstrom for M = Mg and Zn, respectively. The tungsten and titanium atoms are randomly distributed in pairs of face-sharing octahedra separated by octahedral layers containing magnesium or zinc. It was revealed that the structures are well ordered which is believed to result in a low dielectric loss at a microwave frequency reported for these materials. (C) 2006 Elsevier Ltd. All rights reserved.

palavras-chave

MICROWAVE; CERAMICS; PEROVSKITES

categoria

Materials Science

autores

Khalyavin, DD; Senos, AMR; Mantas, PQ

nossos autores

Partilhe este projeto

Publicações similares

Usamos cookies para atividades de marketing e para lhe oferecer uma melhor experiência de navegação. Ao clicar em “Aceitar Cookies” você concorda com nossa política de cookies. Leia sobre como usamos cookies clicando em "Política de Privacidade e Cookies".