Microstructures formed during devitrification of Na2O·Al2O3·B2O3·SiO2·Fe2O3 glasses

被引：0
|
作者：
Ruzha Harizanova
Günter Völksch
Christian Rüssel
机构：
[1] University of Chemical Technology and Metallurgy,Physics Department
[2] Universität Jena,Otto
来源：
Journal of Materials Science | 2010年 / 45卷
关键词：
Fe2O3; Magnetite; B2O3; Na2O; Borate Glass;
D O I：
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学科分类号：
摘要：
Soda alumina borosilicate glasses of composition (24-y)Na2O·yAl2O3·14B2O3·37SiO2·25Fe2O3, y = 8, 12, 14, 16 mol%, were melted using Fe2O3 as raw material. Besides, samples with y = 12 and Fe2O3 concentrations of 14.32, 17.8, and 25.0 mol% were prepared from FeC2O4·2H2O as raw material. The X-ray diffraction analyses showed the presence of magnetite for the samples from all the investigated compositions. Transmission electron microscopy (TEM) evidenced that all the samples are phase separated and droplets in the diameter range 100–1000 nm, enriched in iron, are formed. Inside these droplets, numerous small magnetite particles, with size in the 25–40 nm interval, are crystallized.
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页码：1350 / 1353
页数：3
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