Microwave Dielectric Properties of (1 — x)Nd(Co_(1/2)Ti_(1/2))O_3-xSrTiO_3 Ceramics with Near Zero Temperature Coefficient of Resonant Frequency

Ching-Fang TSENG; Cheng-Liang HUANG

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Microwave Dielectric Properties of (1 — x)Nd(Co_(1/2)Ti_(1/2))O_3-xSrTiO_3 Ceramics with Near Zero Temperature Coefficient of Resonant Frequency

机译：共振频率接近零的（1 x）Nd（Co_（1/2）Ti_（1/2））O_3-xSrTiO_3陶瓷的微波介电性能

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摘要

The microwave dielectric properties of (1 — x)Nd(Co_(1/2)Ti_(1/2))O_3-xSrTiO_3 have been investigated. The system has been prepared by a conventional solid state ceramic method. Nd(Co_(1/2)Ti_(1/2))O_3 (NCT) possesses a dielectric constant (ε_r) of 27, a high quality factor (Q x f) of 140,000, and a temperature coefficient of resonant frequency (τ_f) of —46 ppm/℃. To produce a temperature-stable material, SrTiO_3 (ST) has been added, which leads to a near-zero temperature variation in resonant frequency. The microwave Q x f decreases as x increases. ε_r increases from 27 to 29.32 as x varies from 0 to 0.1. A microwave dielectric material having ε_r of 29.32, Q x f of 80900, and τ_f of 0 has been obtained from the compound 0.9NCT-0.1ST sintered at 1440℃ for 4h.

机译：研究了（1 x）Nd（Co_（1/2）Ti_（1/2））O_3-xSrTiO_3的微波介电性能。该系统已经通过常规的固态陶瓷方法制备。 Nd（Co_（1/2）Ti_（1/2））O_3（NCT）的介电常数（ε_r）为27，高质量因子（Q xf）为140,000，共振频率的温度系数（τ_f） -46 ppm /℃。为了生产温度稳定的材料，添加了SrTiO_3（ST），这导致谐振频率的温度变化接近零。微波Q x f随着x的增加而减小。随着x从0变到0.1，ε_r从27增加到29.32。从1440℃下烧结4h的化合物0.9NCT-0.1ST获得了ε_r为29.32，Q x f为80900，τ_f为0的微波介电材料。

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来源
《Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers》 |2007年第4a期|p.1571-1573|共3页
作者
Ching-Fang TSENG; Cheng-Liang HUANG;
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作者单位

Department of Electrical Engineering, National Cheng Kung University, No. 1 University Rd., Tainan 70101, Taiwan;

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正文语种 eng
中图分类应用物理学;
关键词
Nd(Co_(1/2)Ti_(1/2))O_3 ceramics; microwave dielectric properties;

机译：Nd（Co_（1/2）Ti_（1/2））O_3陶瓷;微波介电性能;

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Microwave Dielectric Properties of (1 — x)Nd(Co_(1/2)Ti_(1/2))O_3-xSrTiO_3 Ceramics with Near Zero Temperature Coefficient of Resonant Frequency

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