Studies on the Design and Mechanism of Function Creation for Rare Earth Materials

稀土材料功能创造的设计与机理研究

• 批准号: 06403021
• 负责人: ADACHI Gin-ya
• 金额: $ 11.52万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06403021/
• 关键词: Rare Earth Complexes; Mutual Separation for Rate Earths; Permanent Magnets; Interstitial Metal Nitrides; Chemical Sensors; Environmental Monitoring; Hydrogen Storage Alloys; Functional Thin Films; 希土類相互分離; Sm_2Fe_<17>CxNy; 単磁区粒子; P型半導体; スカンジウム

New results and conclusions obtained through the systematic studied on the design and mechanism of function creation for rare earth materials are as follows :(1) The epoxy resin-bonded magnets produced from the Zn/Sm_2Fe_<17>N_X composite powders were found to possess high-performance permanent magnetic characteristics : (BH) max=-176kJm^<-3> and good resistivity for oxidation.(2) Lanthanide complexes, [LnL_2] Cl_3 (Ln=Eu, Tb ; L=bpy, phen) were incorporated into silica or ORMOSIL (organically modified silicates) and their optical properties were characterized by measurements of absorption, reflection, excitation and emission spectra, and life times. The resulting transparent ORMOSIL composites provided strong red and green emissions and, by optimization of the preparation conditions and the concentration of complexes, high relative emission intensity values against standard phosphors, used in practice, were attained to be-80% and-100% for the ORMOSIL : [Eu (phen) _2] Cl_3 and ORMOSIL : [Tb (bpy) _2] Cl_3, respectively. This demonstrates that they have great potentials for practical uses as one of new phosphors with good transparency and mechanical strength.

通过有关稀土材料功能创造的设计和机制获得的系统研究获得的新结果和结论如下：（1）从Zn/SM_2FE_ <17> N_x复合粉末中产生的环氧树脂树脂键入的磁体，发现具有高性能的永久磁性：（BH）最大磁性：（bh）最大的电阻：（灯笼烯化复合物，[LNL_2] Cl_3（Ln = EU，TB; L = BPY，PEN）掺入二氧化硅或Ormosil（有机修饰的硅酸盐）中，其光学特性的特征是测量吸收，反射，兴奋，激发和发射光谱和生命时间。由此产生的透明Ormosil复合材料提供了强烈的红色和绿色排放，并且通过优化制备条件和复合物的浓度，用于实践中使用的高相对发射强度值，用于Ormosil：[EU（eu（phan）_2] cl_3 cl_3和ormosil：clpy clpy cl cl（tb（bpy）），将其用于实践中使用的标准磷酸盐。这表明它们作为具有良好透明度和机械强度的新磷剂之一具有实践用途的巨大潜力。

项目成果

Tetsuro Jin: "High Conversion Efficiency Photovoltaic Cell Enhanced by Lanthanide Complex Phosphor Film Coating" Chem.Lett.171-172 (1997)

Tetsuro Jin：“通过稀土配合物荧光粉薄膜涂层增强高转换效率光伏电池”Chem.Lett.171-172 (1997)

Hirokazu Izumi: "High-performance Characteristics of Bonded Magnets Produced using Sm_2Fe_<17>N_x Powder Stabilized by Photoinduced Zinc Metal Coating" Jpn.J.Appl.Phys.35. L894-L896 (1996)

Hirokazu Izumi：“使用光诱导锌金属涂层稳定的 Sm_2Fe_<17>N_x 粉末生产的粘结磁体的高性能特性”Jpn.J.Appl.Phys.35。

Kuniaki Murase: "Extraction and Mutual Separation of Rare Earths from Concentrates and Crude Oxides using Chemical Vapor Transport" J.Alloys Comp.233. 96-106 (1996)

Kuniaki Murase：“利用化学气相传输从精矿和粗氧化物中提取和相互分离稀土”J.Alloys Comp.233。

Tetsuya Ozaki: "Extraction of Rare Earths and Thorium from Monazite by Chlorination with Carbon Tetrachloride" Trans.Inst.Min.Metall.Sect.C. 105. 141-145 (1996)

Tetsuya Ozaki：“通过四氯化碳氯化从独居石中提取稀土和钍” Trans.Inst.Min.Metall.Sect.C。

Toshiyuki Masui: "Preparation and characterization of cerium oxide Ultrafine particles Dispersed in polymer thin Films" Journal of Alloys and Compounds. (印刷中).

Toshiyuki Masui：“分散在聚合物薄膜中的氧化铈超细颗粒的制备和表征”《合金与化合物杂志》（正在出版）。