Structure and properties of non-silicate oxide glasses having new functions

具有新功能的非硅酸盐氧化物玻璃的结构与性能

• 批准号: 60430020
• 负责人: SAKKA Sumio
• 金额: $ 13.44万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60430020/
• 关键词: Gallate glasses; Aluminate glasses; Titanate glasses; X-ray radial distribution analysis; Raman spectroscopy; Oxide glass formation; 蛍光X線化学シフト; 組成設計; チタネートガラス; X線構造解析; Ti^<4+>の配位数; 2成分チタネート; アルカリ-ガロ-チタネートガラス; Ga_2O_3含有ガラス; ニオビウムガリウム酸塩ガラス; ラ

This study has been undertaken to find the structure of gallate, aluminate and titanate glasses which do not contain conventional network formers such as SiO_2, B_2O_3, GeO_2, P_2O_5 and As_2O_3. These glasses are characterized by infrared transmittance and ionic conduction and the study of the structure of the glasses is expected to contribute to materials design, that is, to exploring the relation between the composition and characteristic properties.X-ray radial distribution analysis, Raman spectroscopy and measurement of chemical shift of X-ray fluorescence have been made on binary and ternary glasses of the compositions of alkali or alkaline earth gallates, aluminates and titanates to elucidate their structure. It has been found that in all those glasses most of the major cations, that is, Ga^<3+>, Al^<3+> and Ti<@14+<@D1 ions that may assumingly form glass networks are in four coordination relative to oxygens. This indicates that Zachariasen's theory on glass formation and glass networks is also valid for gallate, aluminate and titanate glasses. Zachariaxen's theory states that oxide glass formation occurs when metal cations have a small coordination number (3 Or 4) with oxygen and polyhedral structural units MO3 and MO4, Where M is a metallic atom, are connected at the corner of the polyhedron, sharing an oxygen. Besides the glass structrues, the composition dependences of density, thermal expansion and electrical ave also been investigated in gallate and aluminate glasses. As a result of the above mentioned studies, the materials design of gallate, aluminate and titanate glasses became possible.

这项研究是为了找到不包含常规网络造型器（例如sio_2，b_2o_3，geo_2，p_2o_5和as_2o_3）的食物酸盐，铝制和滴钛玻璃的结构。这些玻璃的特征是红外透射和离子传导，并且对玻璃结构的研究有望有助于材料设计，也就是说，探索组成与特征性能之间的关系。x射线径向分布分析，拉曼频谱分析，X射线荧光层的化学移动层的分布和测量是对X射线荧光的测量。铝和滴定以阐明其结构。已经发现，在所有这些玻璃杯中，大多数主要阳离子，即Ga^<3+>，Al^<3+>和Ti <@14+<@D1离子，可能形成玻璃网络相对于氧气而言是四个配位。这表明Zachariasen关于玻璃形成和玻璃网络的理论也适用于食道，铝制和钛糖眼镜。 Zachariaxen的理论指出，当金属阳离子与氧和多面体结构单元Mo3和Mo4具有较小的配位数（3或4）时，会发生氧化物玻璃形成，其中M是金属原子，在多面体的拐角处连接在一起，共享氧气。除了玻璃整合体外，还研究了密度的组成依赖性，热膨胀和电气AVE还在食道和铝制玻璃中进行了研究。作为上述研究的结果，可以使用食物酸盐，铝制和钛酸眼镜的材料设计。

项目成果

K.Fukumi;S.Sakka: Journal of Non-Crystalline Solids.

K.Fukumi；S.Sakka：非晶固体杂志。

T. Kokubo; Y. Inaka; S.Sakka: "Glass formation and optical properties of glasses in the system (R_2O or R'O)-Ta_2O_5" Journal of Non-Crystalline Solids. 80. 518-526 (1986)

T.小久保；

F. Miyaji; S. Sakka: "Structure of R_2O-Ga_2O_3-TiO_2 (R=Na, K, Cs) glasses studied by Raman spectroscopy" Journal of Ceramic Society of Japan. 97. 267-273 (1989)

F.宫地；

K.サンカブツJournal of Non-Crystalline Solids.

K. Sankabutsu 非晶固体杂志。

M. Murakaki; S. Sakka: "Ab initio molecular orbital study on the vibrational spectra of silicate glasses" Journal of Non-Crystalline Solids. 95/96. 225-232 (1987)

穆拉卡基；