High Q(m) values and humidity effect on the electrical properties of (K, Na)NbO3 lead-free piezoceramics doped with B2O3-CuO mixed oxides
Zhen, YH; Li, LL; Lin, YN; Wang, K; Zhu, FY; Jia, KL
2017
发表期刊JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
卷号100期号:4页码:1561-1569
文章类型期刊论文
摘要To greatly enhance the mechanical quality factor (Q(m)) of piezoceramic materials, B2O3-CuO mixed oxides were added to a K0.48Na0.52NbO3-based lead-free piezoceramic (abbreviated as BC-KNN). The results suggest that the B2O3-CuO additives effectively improved the sinterability and Q(m) value of the piezoceramic. An optimal Q(m) value as high as 2128 was obtained, which is 35 times higher than that of pure KNN ceramic. Interestingly, we found that the Q(m) value was sensitive to humidity of the surrounding environment. As the relative humidity (RH) increased from 25% RH to 78% RH, the Q(m) value of the BC-KNN ceramics decreased from 2128 to 267. We found that the dependence of the Q(m) value on humidity was closely related to the instability of the relative dielectric constant ((r)). Our results show that a dense microstructure is critical for maintaining a stable high Q(m) performance in a humid environment.
关键词(k Na)Nbo3 (Knn) Humidity Effect Lead-free Piezoceramics Mechanical Quality Factor q(m)
DOI10.1111/jace.14586
收录类别SCI
语种英语
WOS记录号WOS:000399610800040
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27343
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Zhen, YH,Li, LL,Lin, YN,et al. High Q(m) values and humidity effect on the electrical properties of (K, Na)NbO3 lead-free piezoceramics doped with B2O3-CuO mixed oxides[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2017,100(4):1561-1569.
APA Zhen, YH,Li, LL,Lin, YN,Wang, K,Zhu, FY,&Jia, KL.(2017).High Q(m) values and humidity effect on the electrical properties of (K, Na)NbO3 lead-free piezoceramics doped with B2O3-CuO mixed oxides.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,100(4),1561-1569.
MLA Zhen, YH,et al."High Q(m) values and humidity effect on the electrical properties of (K, Na)NbO3 lead-free piezoceramics doped with B2O3-CuO mixed oxides".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 100.4(2017):1561-1569.
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