Development of Nano-functional Materials Derived from Metal and/or'Ceramics Glasses as Precursors

以金属和/或陶瓷玻璃为前体衍生的纳米功能材料的开发

基本信息

批准号：
15205025
负责人：
MACHIDA Ken-ichi
金额：
$ 30.12万
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：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

The present study was made to synthesize the nano-materials derived from metal and/or ceramic glasses and characterize their functional properties. The obtained results for the period of 2003-2005 are as follows :1)Preparation and microwave absorbing properties of metal-oxide nano-compositesThe metal-oxide nano-composites were derived from the quenched amorphous alloys in rare earth-iron binary or rare earth-iron-boron ternary systems by the subsequent HD (hydrogenation disproportionation) and oxidation processes. The resultant α-Fe/RE_O_3 or α-Fe/Fe_2B/RE_O_3 (RE=rare earths) showed good electromagnetic wave absorbing properties in a range of 1.5-18 GHz. This is due that the skin effect of α-Fe or Fe_2B magnetic particles is effectively lowered by forming such nano-composite particles.2)Preparation and ionic conducting properties of ceramic glasses containing some components for solid electrolytesThe oxide glasses containing solid electrolyte components such as (La, Sr)(Ga, Mg)O_<3-δ>or (Ce, Sm)O_<2-δ> were prepared and crystallized by the subsequent heating with an electric furnace or irradiating with a Nd:YAG laser. The resultant ceramic glasses showed good O^2-ion conducting characteristics and the fine ion conduction path was finely patterned on the surface of glasses. These results indicate they are possibly used as sensing probe and so on.3)Preparation and persistent spectral hole-burning propertiesThe oxy-halide glasses in ternary systems of CaX_2-SiO_2-Al_O_3 (X=F, Cl) were prepared by the molten method in air or H_2/N_2 mixed gas at ca. 1200℃. The resultant oxy-halide glasses showed excellent persistent spectral hole-burning (PSHB) properties with a high hole peak formation rate. Particularly, the hole peaks of CaCl_2-based glasses were persisted even at room temperature.

本研究是为了合成源自金属和/或陶瓷玻璃的纳米材料，并表征其功能特性。 2003 - 2005年期间获得的结果如下：1）金属氧化物纳米纳米含量的制备和微波吸收的特性，在稀有的土铁或稀有的地球 - 铁 - 生物 - 生物 - 生物元的氧化物中（由稀疏的土铁或稀疏的地球 - 生物 - 生物元）中（由后续的HD）（均氧化物）氧化物（在稀有的土铁或稀有的地球 - 二元）中（均源自液化）（氢）及其液压（氢）及以后的HD（氢）的氧化物（及随后的HD）衍生而成。所得的α-fe/re_o_3或α-fe/fe_2b/re_o_3（re =稀土）在1.5-18 GHz范围内显示出良好的电磁波吸收特性。 This is due that the skin effect of α-Fe or Fe_2B magnetic particles is effectively lowered by forming such nano-composite particles.2)Preparation and ionic conducting properties of ceramic glasses containing some components for solid ElectrolytesThe oxide glasses containing solid electrolyte components such as (La, Sr)(Ga, Mg)O_<3-δ>or (Ce, Sm)O_<2-δ> were由随后用电炉加热或用nd：yag激光辐射来制备并结晶。最终的陶瓷玻璃显示出良好的O^2-ION导电特性，并且在玻璃表面上绘制了细离子传导路径。这些结果表明它们可以用作灵敏度探针等。3）在CAX_2-SIO_2-AL_O_3（x = f，cl）的三元系统中，制备和持续的光谱燃烧材料的含氧玻璃玻璃玻璃玻璃是由空气或H_2/N_2/n_2混合的CA AT CA中的Molten方法制备的。 1200℃所得的羟基玻璃玻璃显示出具有高孔峰形成速率的出色持续光谱燃烧（PSHB）特性。特别是，即使在室温下，基于CACL_2的眼镜的孔峰也持续存在。