Optical fluoride nanoceramic
Optical fluoride nanoceramic
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DOI：
10.1364/jot.75.000728
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发表时间：
2008-11
影响因子：
0.4
通讯作者：
K. V. Dukel’skiĭ;I. A. Mironov;V. Demidenko;A. N. Smirnov;P. Fedorov;V. Osiko;T. Basiev;Y. Orlovskii
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文献类型：
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作者：
K. V. Dukel’skiĭ;I. A. Mironov;V. Demidenko;A. N. Smirnov;P. Fedorov;V. Osiko;T. Basiev;Y. Orlovskii
以乌拉尔南部苏兰矿床的天然光学陶瓷CaF2样品为模型对象进行了研究。利用电子显微镜和原子力显微镜对该陶瓷的纳米结构进行了检测。确定了在1μm波长附近获得光学损耗为10−2-10−3cm−1的透明氟化陶瓷的前驱体制备条件和工艺参数，这是制备光子元件材料的必要条件。与单晶相比，氟化纳米陶瓷具有更好的力学性能。该陶瓷无解理，击穿粘度提高3-6倍，显微硬度提高10-15%。氟陶瓷的导热系数与相应单晶的导热系数完全吻合。氟化纳米陶瓷的光谱特征与相应成分的单晶特征差异不大。
Samples of the natural optical ceramic CaF2 from the Suran deposits (Southern Urals) have been studied as a model object. Nanostructure has been detected in this ceramic by the methods of electron and atomic-force microscopy. The conditions for obtaining precursors and the technological parameters of a process for obtaining a transparent fluoride ceramic with optical losses at a level of 10−2-10−3cm−1 at a wavelength around 1μm have been selected, and this is a necessary condition for creating materials for photonics elements. The fluoride nanoceramic possesses improved mechanical properties by comparison with single crystals. The ceramic is free from cleavage, has a breakdown viscosity greater by a factor of 3-6, and its microhardness is 10-15% higher. The thermal conductivity of the fluoride ceramic and of the corresponding single crystal completely coincide. The spectroscopic characteristics of the fluoride nanoceramic differ insignificantly from the characteristics of single crystals of the corresponding composition.