Dielectric properties of copper oxide doped 0.95Ba(Zn_(1/3)Ta_(2/3))O_3-0.05BaZrO_3 ceramics at microwave frequency

Cheng-Liang Huang; Ruei-Jsung Lin; Jin-Feng Tzeng

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Dielectric properties of copper oxide doped 0.95Ba(Zn_(1/3)Ta_(2/3))O_3-0.05BaZrO_3 ceramics at microwave frequency

机译：微波频率下掺杂0.95Ba（Zn_（1/3）Ta_（2/3））O_3-0.05BaZrO_3陶瓷的氧化铜介电性能

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The microwave dielectric properties of conventional solid state route prepared 0.95Ba(Zn_(1/3)Ta_(2/3))O_3-0.05BaZrO_3 ceramics with CuO addition have been investigated. Ordering structure was not observed at sintering temperatures 1280-1430℃. Copper oxide, as a sintering aid, was found to effectively lower the sintering temperature of 0.95Ba(Zn_(1/3)Ta_(2/3))O_3-0.05BaZrO_3 ceramics. The Q x f values of 58 000-93 000 (at 7 GHz) can be obtained when the sintering temperatures are in the range of 1280-1430℃. The permittivity (ε_r) as well as the temperature coefficient of resonant frequency τ_f was strongly correlated to the CuO content but independent of the sintering temperature. The ε_r value of 29.6, Q x f value of 93 000 (at 7 GHz) and τ_f value of 3.1 ppm℃~(-1) were obtained for 0.95Ba(Zn_(1/3)Ta_(2/3))O_3-0.05BaZrO_3 ceramics with 1 wt.% CuO addition sintered at 1430℃ for 4h. For applications of high selective microwave ceramic resonator and filter, 0.95Ba(Zn_(1/3)Ta_(2/3))O_3-0.05BaZrO_3 is proposed as a suitable material candidate.

机译：研究了添加CuO的0.95Ba（Zn_（1/3）Ta_（2/3））O_3-0.05BaZrO_3陶瓷的常规固态路线的微波介电性能。烧结温度在1280-1430℃之间没有观察到有序结构。发现氧化铜作为烧结助剂可有效降低0.95Ba（Zn_（1/3）Ta_（2/3））O_3-0.05BaZrO_3陶瓷的烧结温度。当烧结温度在1280-1430℃范围内时，Q x f值为58 000-93 000（在7 GHz下）。介电常数（ε_r）以及共振频率的温度系数τ_f与CuO含量密切相关，但与烧结温度无关。对于0.95Ba（Zn_（1/3）Ta_（2/3））O_3-，获得ε_r值为29.6，Q xf值为93 000（在7 GHz下）和τ_f值为3.1 ppm℃〜（-1）添加了1 wt。％CuO的0.05BaZrO_3陶瓷在1430℃下烧结4小时。对于高选择性微波陶瓷谐振器和滤波器的应用，提出了0.95Ba（Zn_（1/3）Ta_（2/3））O_3-0.05BaZrO_3作为合适的材料候选。

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来源
《Materials Chemistry and Physics》 |2006年第3期|p.256-260|共5页
作者
Cheng-Liang Huang; Ruei-Jsung Lin; Jin-Feng Tzeng;
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作者单位

Department of Electrical Engineering, National Cheng Kung University, Tainan 70101, Taiwan;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;工程基础科学;
关键词
ceramics; X-ray diffraction; dielectric properties;

机译：陶瓷;X射线衍射;介电性能;

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Dielectric properties of copper oxide doped 0.95Ba(Zn_(1/3)Ta_(2/3))O_3-0.05BaZrO_3 ceramics at microwave frequency

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