题名 |
Structure and Elastic Properties of Iron Phosphate Glasses |
作者 |
K. H. Chang;T. H. Lee;L. G. Hwa |
关键词 | |
期刊名称 |
Chinese Journal of Physics |
卷期/出版年月 |
41卷4期(2003 / 08 / 01) |
页次 |
414 - 421 |
内容语文 |
英文 |
英文摘要 |
The structure and elastic properties of a series of iron phosphate glasses are investigated using infrared reflectivity and ultrasonic pulse-echo measurements. The mid-infrared and far-infrared spectra give information about phosphate related vibrational modes and the nature of the bond between the metal cat-ion and its surrounding oxygen within the glass network. The structural role of the Fe2+ and Fe3+ ions in these glasses in terms of four-fold coordinated tetrahedral and/or six-fold coordinated octahedral is discussed. The room temperature ultrasonic velocities (both longitudinal and transverse) in these glasses are determined by the pulse-echo technique. The experimental results are used to obtain the elastic constants. A correlation between the structure and the elastic properties of these glasses is given. |
主题分类 |
基礎與應用科學 >
物理 |
被引用次数 |
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