"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Microwave dielectric properties of BaTi4O9-Nd2O3, BaTi4O9-Sm2O3 and BaTi4O9-WO3 ceramics

M. CERNEA1,*

Affiliation

  1. National Institute for Materials Physics, PO BOX MG-7, Bucharest, RO-77125, Romania

Abstract

Barium tetratitanate (BaTi4O9) powder, synthesized by coprecipitation method, was used to prepare BaTi4O9-Nd2O3, BaTi4O9-Sm2O3 and BaTi4O9-WO3 ceramics with microwave dielectric properties. The structure and microwave dielectric properties were studied. BaNd2Ti5O14 and BaSm2Ti4O12 single-phase ceramics were obtained from BaTi4O9:Nd2O3=1:1 and BaTi4O9:Sm2O3=1:1, respectively. A multiple phases ceramic containing mainly BaWO4 and small amounts of Ba2Ti9O20 and BaTi4O9 was obtained from BaTi4O9:WO3=1:1. BaTi4O9-Nd2O3, BaTi4O9-Sm2O3 and BaTi4O9-WO3, ceramics sintered at 1375 °C for 8.5 h in air, shown good microwave dielectric properties..

Keywords

Barium tetratitanate ceramics, Microstructures, Microwave dielectric properties.

Submitted at: Oct. 26, 2007
Accepted at: Dec. 7, 2007

Citation

M. CERNEA, Microwave dielectric properties of BaTi4O9-Nd2O3, BaTi4O9-Sm2O3 and BaTi4O9-WO3 ceramics, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 12, pp. 3790-3794 (2007)