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.

无机材料的高温结构测定在基础科学和应用方面都越来越重要。高分辨中子粉末衍射是这类研究的有力工具。我们一直在开发高分辨率飞行时间（TOF）中子粉末衍射仪（NPD）在脉冲中子设施KENS。使用高分辨率的TOF-NPD，获得了高质量的晶体学数据。我们成功地利用TOF-NPD进行了高温原位测量。最大熵方法（MEM）被成功地应用于TOF-NPD数据（TOF/MEM）中，得到了离子的平均分布。除了平均结构外，离子导体中移动的离子的局域结构对理解离子导电机理也很重要。由TOF中子衍射数据得到的结构因子S（Q）得到了对分布函数（PDF）和径向分布函数（RDF）。

项目成果

Structure determination of n=1 Ruddlesden-popper compound HlaTiO4 by powder neutron

粉末中子法测定n=1 Ruddlesden-popper化合物HlaTiO4的结构

• 发表时间: 2006
• 期刊: J.European Ceramic Society 26
• 作者: Nishimoto;S
• 通讯作者: S

Cation composition and oxygen content dependence of crystal structure and Tc for Tl2-xBa2Ca2Cu3+zOy.

Tl2-xBa2Ca2Cu3 zOy 晶体结构和 Tc 的阳离子组成和氧含量依赖性。

• 发表时间: 2003
• 期刊: Journal of the Ceramic Society of Japan 111
• 作者: Idemoto;Y.;K.Yamawaki;N.Koura;T.Kamiyama;K.Oikawa;F.Izumi
• 通讯作者: F.Izumi

Structural phase transitions in the ferroelectric oxides Ba1-xPbxBi2Nb2O9 (x = 0.375,0.625).

铁电氧化物 Ba1-xPbxBi2Nb2O9 (x = 0.375,0.625) 中的结构相变。

• 发表时间: 2004
• 期刊: J.Phys.Codens.Matter 16
• 作者: Macquart;R.;B.J.Kennedy;T.Kamiyama
• 通讯作者: T.Kamiyama

Prebending effects in bronze route Nb3Sn wires.

青铜路线 Nb3Sn 线材的预弯曲效应。

• 发表时间: 2005
• 期刊: Supercond.Sci.Technol. 18
• 作者: Awaji;S
• 通讯作者: S

T.Mochiku: "Atomic ordering in FeSr_2LnCu_2O_<6+δ> system (Ln=Nd, Y and Fr)"Physica C. 400. 43-52 (2003)

T.Mochiku：“FeSr_2LnCu_2O_<6+δ>系统中的原子排序（Ln=Nd、Y和Fr）”Physica C. 400. 43-52 (2003)