Microwave dielectric properties and compatibility with silver of low-fired Li2Cu0.1Zn0.9Ti3O8 ceramic

Microwave dielectric properties and compatibility with silver of low-fired Li2Cu0.1Zn0.9Ti3O8 ceramic
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低温烧制Li2Cu0.1Zn0.9Ti3O8陶瓷的微波介电性能及与银的相容性

DOI:
10.1016/j.matlet.2012.04.120
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发表时间:
2012-08
期刊:
影响因子:
3
通讯作者:
Zhang, Hui
Zhang, Hui
中科院分区:
材料科学3区
文献类型:
--
作者:
Fang, Liang;Liu, Qinwen;Su, Congxue;Liao, Wei;Zhang, Hui

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首次研究了一种新型低损耗、低温烧结微波介质陶瓷Li_2Cu_(0.1)Zn_(0.9)Ti_3 O_8。采用常规固相法制备了单相尖晶石结构的纯Li 2Cu 0. 1 Zn 0. 9 Ti 3 O 8陶瓷,并在900°C ~ 975°C烧结2 h。在950°C/2 h烧结的陶瓷具有中等的介电常数(εr)为25.2,高品质因数(Q×f)为32 100 GHz,谐振频率温度系数(τf)为1.6ppm/ °C,接近于零。Li2Cu0.1Zn0.9Ti3O8陶瓷可与Ag电极相容,是一种很有前途的LTCC陶瓷材料。
A new low-loss, low-temperature sinterable microwave dielectric ceramic Li2Cu0.1Zn0.9Ti3O8was investigated for the first time. Single phase pure Li2Cu0.1Zn0.9Ti3O8ceramic with cubic spinel structure was obtained by the conventional solid-state route and sintered at 900°C–975°C for 2h. The ceramic sintered at 950°C/2h exhibits a moderate dielectric constant (εr) of 25.2, a high quality factor value (Q×f) of 32 100GHz, and a near-zero temperature coefficient of the resonant frequency (τf) of 1.6ppm/ °C. The Li2Cu0.1Zn0.9Ti3O8ceramic can be compatible with Ag electrode, which makes it a promising ceramic for LTCC technology application.
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