Visualization Method of Ionic Conductivity

离子电导率可视化方法

• 批准号: 15350125
• 负责人: KAMIYAMA Takashi
• 金额: $ 9.73万
• 依托单位: High Energy Acclerator Research Organization (2004)The High Energy Accelerator Research Organization (2003)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15350125/
• 关键词: Neutron Powder Diffraction; Ionic Conductivity; Visualization; High Temperature; In situ Measurement; 中性子回折

High temperature structural determination of inorganic materials is more and more important in both basic science and application point of view. High resolution neutron powder diffraction is a powerful tool in such studies. We have been developing high resolution Time-of-Flight (TOF) neutron powder diffractometers (NPD) at the pulsed neutron facility KENS. With using high resolution TOF-NPD, high quality crystallographic data are obtained. We have succeeded in high temperature in situ measurement using TOF-NPD. In addition, Maximum Entropy Method (MEM) is successfully applied to TOF-NPD data (TOF/MEM), and average distribution of ions are visualized by MEM. In addition to average structures, local structures of mobile ions in ionic conductors are also important to understand the mechanism of the ionic conductivity. We have obtained the pair distribution function (PDF) and radial distribution function (RDF) from the structure factor S(Q) obtained from TOF neutron diffraction data.

在基础科学和应用的角度，无机材料的高温结构确定越来越重要。高分辨率中子粉末衍射是此类研究的强大工具。我们一直在脉冲中子设施kens开发高分辨率飞行时间（TOF）中子粉末衍射仪（NPD）。使用高分辨率TOF-NPD，获得了高质量的晶体学数据。使用TOF-NPD，我们在高温原位测量中取得了成功。此外，最大熵方法（MEM）成功应用于TOF-NPD数据（TOF/MEM），并通过MEM可视化离子的平均分布。除了平均结构外，离子导体中移动离子的局部结构对于了解离子电导率的机制也很重要。我们从从TOF中子衍射数据获得的结构因子s（q）那里获得了对分布函数（PDF）和径向分布函数（RDF）。

项目成果

Structural and magnetoelectric properties of Ga2-xFexO3 single crystals grown by a floating-zone method

• DOI: 10.1103/physrevb.70.064426
• 发表时间: 2004-08-01
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Arima, T;Higashiyama, D;Tokura, Y
• 通讯作者: Tokura, Y

Neutron diffraction study on lanthanum gallate perovskite compound series

• DOI: 10.1021/cm030294y
• 发表时间: 2003-08
• 期刊: Chemistry of Materials
• 影响因子: 8.6
• 作者: M. Kajitani;M. Matsuda;A. Hoshikawa;K. Oikawa;S. Torii;T. Kamiyama;F. Izumi;M. Miyake

Ordering of Oxygen and Nitrogen in J-Phase Lu4Si2O7N2

J 相 Lu4Si2O7N2 中氧和氮的排序

• 发表时间: 2003
• 期刊: Key Engineering Materials 2337
• 作者: Takahashi;J.
• 通讯作者: J.

バーライト鋼の塑性変形挙動に及ぼす階層的不均一変形と集合組織の影響

分级异质变形和织构对巴来石钢塑性变形行为的影响

• 发表时间: 2005
• 期刊: 鉄と鋼 91
• 作者: 諸岡聡;鈴木徹也;友田陽;塩田佳徳;神山崇
• 通讯作者: 神山崇

K.Oikawa: "Structural Study of a High Ionic Conductor Rb_4Cu_<16>I_<7.2>Cl_<12.8>"Materials Science Forum. 443-444. 337-340 (2003)

K.Oikawa：“高离子导体Rb_4Cu_<16>I_<7.2>Cl_<12.8>的结构研究”材料科学论坛。