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Ferroelectrics Volume 451, 2013 - Issue 1
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Original Articles

Microwave Dielectric Behaviors of Nd(Co1/2Ti1/2)O3 Ceramics with 11SiO2-51P2O5-5Na2O-25ZnO-8Al2O3 Glass Addition of Oxides

Cheng-Hsing Hsu Department of Electrical Engineering, National United University, No. 1 Lien-Da, Kung-Ching Li, Miao-Li, 36003, Taiwan
,
Ching-Fang Tseng Department of Electronic Engineering, National United University, No. 1 Lien-Da, Kung-Ching Li, Miao-Li, 36003, Taiwan
,
Yu-Hsuan Chang Department of Electrical Engineering, National United University, No. 1 Lien-Da, Kung-Ching Li, Miao-Li, 36003, Taiwan
,
Hsi-Wen Yang Department of Materials Science and Engineering, National United University, No. 1 Lien-Da, Kung-Ching Li, Miao-Li, 36003, Taiwan
&
Jenn-Sen Lin Department of Mechanical Engineering, National United University, No. 1 Lien-Da, Kung-Ching Li, Miao-Li, 36003, Taiwan
Pages 68-75 | Received 11 Dec 2012, Accepted 04 Mar 2013, Published online: 09 Dec 2013
 
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Abstract

The microwave dielectric properties of complex perovskite Nd(Co1/2Ti1/2)O3 ceramics with 11SiO2–51P2O5–5Na2O-25ZnO-8Al2O3 (SPNZA) additions (1 and 4wt%) prepared through the solid-state route were investigated. A large decrease in the sintering temperature (near 150 °C) can be achieved by adding the SPNZA-glass to the Nd(Co1/2Ti1/2)O3 ceramics. At 1300°C, Nd(Co1/2Ti1/2)O3 ceramics with 1 wt% of SPNZA-glass addition possesses a dielectric constant (ϵ r) of 27.2, a Q × f value of 40000 GHz and a temperature coefficient of resonant frequency (T f ) of –53 ppm/°C.

Acknowledgment

This work was supported by the National Science Council of the Republic of China under grant NSC 101-2628-E-239-001.

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