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Preparation of Enviromental-frienfdly Piezomaterials with Ultrahigh Property by Nanodomain Engineering

纳米域工程制备环保型超高性能压电材料

基本信息

批准号：
18360312
负责人：
WADA Satoshi
金额：
$ 11.01万
依托单位：
University of Yamanashi (2007)Tokyo Institute of Technology (2006)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18360312/
关键词：
grain-oriented ceramics piezoelectric constant engineered domain configuration domain size resonator domain wall TGG method template particles

项目摘要

In this study, the patterning electrode was used to induce the finer engineered domain configurations with domain size of 3 pm. The poling treatment was performed at 134.0℃ under electric fields below 6 kV/cm to inhibit the burning of the patterning electrode with photoresist As the results, the gradient domain sizes from 3 to 8-9 pm were induced into the 31 resonator. Up to date, when the whole plane electrode was used, the minimum domain Ci7P was limited to 5 pm. However, using patterning electrode, the smaller domain size than 5 pm was successfully induced into the resonator. The chi was measured at -243.2 pC/N, and this value was almost 70% of the expected d31 of -337.7 pC/N for the resonator with domain size of 3 μm. This difference was originated from lower applied electric field below 6 kV/cm. This problem can be solved by development of the patterning electrode without photoresist. In the future, the developed patterning electrode with much finer pattern than 3 pm will be prepa … More red, and much higher d_31 will be challenged.Moreover, [110]-oriented Ba1103 ceramics were successfully prepared by the TGG method. It was revealed that the SaT103 ceramics had a high density of over 96% despite various Fm values. However; the average grain sizes were around 75 pm, and this size was too large compared with those (1.6-2.1 pm) reported by Takahashi, et al. and Karaki, et al. In the future, the grain ea should be below I pm for grain-oriented BaT103 ceramics. To achieve this, a new preparation method without using a template is required. In this study, BaTICI3 ceramics with a d_33 of 788 pC/N were first obtained. These ceramics had the engineered domain configuration with an average domain size of 800 run. This high domain wall density was the origin of the do higher than 500 pC/N. The most important point in this study is the confirmation that the structure gradient region such as the 90° domain wall region had an ultrahigh piezoelectric property intrinsically. This concept is universal, and can be applied to any ferroelectric materials. Using this concept, we can prepare ultrahigh-piezoelethric materials with a d_33 of 10,000 pC/N in the future. Less

在这项研究中，图案化电极用于诱导更精细的工程域配置，域尺寸为 3 pm。在低于6 kV/cm的电场下，在134.0℃下进行极化处理，以抑制光刻胶图案化电极的烧毁。结果，在31个谐振器中诱导了从3到8-9 pm的梯度域尺寸。迄今为止，当使用全平面电极时，最小域Ci7P仅限于下午5点。然而，使用图案化电极，小于 5 pm 的更小的域尺寸被成功诱导到谐振器中。 chi 的测量值为 -243.2 pC/N，对于域尺寸为 3 μm 的谐振器，该值几乎是预期 d31（-337.7 pC/N）的 70%。这种差异源于低于 6 kV/cm 的较低施加电场。这个问题可以通过开发无光刻胶的图案化电极来解决。未来，所开发的具有比3 pm更精细图案的图案化电极将受到挑战，并且更高的d_31将受到挑战。此外，通过TGG方法成功制备了[110]取向Ba1103陶瓷。结果表明，尽管 Fm 值不同，SaT103 陶瓷仍具有超过 96% 的高密度。然而;平均粒径在下午 75 点左右，与 Takahashi 等人报道的粒径（下午 1.6-2.1 点）相比太大。和卡拉奇等人。未来，晶粒取向BaT103陶瓷的晶粒ea应低于I pm。为了实现这一目标，需要一种不使用模板的新制备方法。本研究首次获得了d_33为788 pC/N的BaTICI3陶瓷。这些陶瓷具有平均域尺寸为 800 nm 的工程域配置。这种高磁畴壁密度是 do 高于 500 pC/N 的根源。这项研究最重要的一点是确认了结构梯度区域（例如90°畴壁区域）本质上具有超高压压电特性。这个概念是通用的，可以应用于任何铁电材料。利用这个概念，我们将来可以制备出d_33达到10,000 pC/N的超高压电材料。较少的