Study on New Reaction Environment using Piezoelectricity for Ceramic Synthesis

压电陶瓷合成新反应环境的研究

• 批准号: 23656400
• 负责人: KAKIMOTO Ken-ichi
• 金额: $ 2.5万
• 依托单位: Nagoya Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656400/
• 关键词: 圧電体

The influence of the surface charge originated from piezoelectricity on the crystal growth from an aqueous solution was studied in order to propose a new crystal growth technique called by piezoelectric-assisted solution-growth deposition. The sodium titanate layer coated lead-free piezoelectric material (NT-LNKN) soaked in the simulated body fluid (SBF) at temperature as low as 37oC. The apatite phase successfully covered NT-LNKN surface for an immersion period up to 7 days, which indicates that the electric charge of the piezoelectric material has attracted Ca2+ and HPO42- ions on the surface.To develop this fact, BaTiO3 ceramics were also charged with corona discharge gun and immersed into a Zn(CH3COO)2 solution. The microstructure of the ceramic surface revealed precipitants of ZnO, and the larger amount of the precipitants was found on the charged surface in comparison with un-charged surface.

研究了压电产生的表面电荷对水溶液晶体生长的影响，提出了一种称为压电辅助溶液生长沉积的新晶体生长技术。将钛酸钠层涂覆的无铅压电材料（NT-LNKN）浸泡在温度低至37℃的模拟体液（SBF）中。磷灰石相成功覆盖 NT-LNKN 表面长达 7 天的浸泡时间，这表明压电材料的电荷吸引了表面上的 Ca2+ 和 HPO42- 离子。为了证明这一事实，BaTiO3 陶瓷还用电晕放电枪充电并浸入 Zn(CH3COO)2 溶液中。陶瓷表面的微观结构显示出ZnO沉淀物，并且与不带电表面相比，在带电表面上发现了更多的沉淀物。

项目成果

Challenges for Lead-free Piezoelectric Ceramics in Alkali Niobate System

碱铌酸盐体系中无铅压电陶瓷面临的挑战

• 发表时间: 2013
• 作者: Heng Quan Yang;Lei Miao;Ming Zhang;Kaoru Ohno;Jian Hua Zhou;Hui Gu;Yang Shen;and Hong Lin;K. Kakimoto
• 通讯作者: K. Kakimoto

High-temperature Electrical Properties of (Na,K)NbO3-based Ceramics under DC Electric Field

直流电场下(Na,K)NbO3基陶瓷的高温电性能

• 发表时间: 2012
• 作者: T. Hayakawa;K. Kakimoto;I. Kagomiya
• 通讯作者: I. Kagomiya

表面電荷をもつBaTiO_3基材上でのZnO 合成

带表面电荷的BaTiO_3基底上ZnO的合成

• 发表时间: 2014
• 作者: 大山裕斗;柿本健一
• 通讯作者: 柿本健一

High-temperature Electrical Properties of (Na, K)NbO_3-based Ceramics under DC Electric Field

直流电场下(Na,K)NbO_3基陶瓷的高温电学性能

• 发表时间: 2012
• 作者: T. Hayakawa;K. Kakimoto;I. Kagomiya
• 通讯作者: I. Kagomiya

Engineering of Lead-free Piezoelectric (Na,K)NbO3 Ceramics and Film via Aqueous-based Chelate Precursor

通过水基螯合物前驱体设计无铅压电 (Na,K)NbO3 陶瓷和薄膜

• 发表时间: 2013
• 作者: K. Kakimoto;K. Hattori;I. Kagomiya
• 通讯作者: I. Kagomiya