Crystallization Behaviour and Nanostructuring in Alkali Niobiosilicate Glasses

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	Crystallization Behaviour and Nanostructuring in Alkali Niobiosilicate Glasses
	Fanelli, E.2; Pernice, P.2; Xiao, M.1,3; Aronne, A.2; Sigaev, V. N.4
	2011-02-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
卷号	27 期号:2 页码:189-192
摘要	23K(2)O center dot 27Nb(2)O(5)-50SiO(2) (KNS), 13K(2)O center dot 10Na(2)O center dot 27Nb(2)O(5)center dot 50SiO(2) (KNaNS) and 15K(2)O center dot 12Li(2)O center dot 27Nb(2)O(5)center dot 46SiO(2) (KLiNS) transparent glasses were synthesized by melt-quenching technique, and studied by differential thermal analysis (DTA), X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) to reveal the effect of the devitrification behaviour on transparent nanostructure. Just above the glass transition temperature T(g) in the KNS glass, an unidentified phase was formed, while in KNaNS and KLiNS, mixed-alkali niobate phases with tungsten bronze structure were obtained by bulk crystallization. Heat treatments at T(g) performed on the KNS glass resulted in the transparent nanostructure with second order harmonic generation (SHG) activity. Heat treatment for 10 h on KNaNS and KLiNS decreased the first DTA exothermic peaks (at least 24 degrees C), indicating the bulk nucleation, which was confirmed by the DTA in comparison with the powdered as-quenched samples. KNaNS and KLiNS showed similar XRD profiles as the K(3)Li(2)Nb(5)O(15) crystal with the five most intense peaks at 22.7, 29.4, 32.3, 46.3 and 52.0 deg. HRTEM micrograph showed clear-cut nano-sized circular domains and spherical nanocrystals dispersed into the amorphous matrix.
文章类型	Article
关键词	Niobiosilicate Glasses Crystallization Nanostructuring
WOS标题词	Science & Technology ; Technology
研究领域[WOS]	Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	CRYSTAL-STRUCTURES ; POTASSIUM
收录类别	SCI
语种	英语
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000288526000016
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/10370
专题	中国科学院广州能源研究所
作者单位	1.Huazhong Univ Sci & Technol, Dept Mat Sci & Engn, Wuhan 430074, Peoples R China 2.Univ Naples Federico 2, Dipartimento Ingn Mat & Prod, I-80125 Naples, Italy 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China 4.Mendeleev Univ Chem Technol Glass & Glass Ceram, Moscow 125190, Russia
推荐引用方式 GB/T 7714	Fanelli, E.,Pernice, P.,Xiao, M.,et al. Crystallization Behaviour and Nanostructuring in Alkali Niobiosilicate Glasses[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2011,27(2):189-192.
APA	Fanelli, E.,Pernice, P.,Xiao, M.,Aronne, A.,&Sigaev, V. N..(2011).Crystallization Behaviour and Nanostructuring in Alkali Niobiosilicate Glasses.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,27(2),189-192.
MLA	Fanelli, E.,et al."Crystallization Behaviour and Nanostructuring in Alkali Niobiosilicate Glasses".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 27.2(2011):189-192.