کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9803737 | 1516472 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of elemental iron on the carbothermic reduction of the anatase and rutile forms of titanium dioxide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Effect of iron on the carbothermic reduction of anatase and rutile forms of titanium dioxide was studied. Differential thermogravimetric analysis indicated a significantly different reduction route in the presence of iron with a number of clear minima in the rate of mass loss observed. X-ray diffraction of the products at these minima indicated that rutile initially formed FeTiO3 which reduced to γ-Ti3O5, whilst anatase reduced through the mixed Ti(III/IV) phases of general formula TinO2nâ1 to d-Ti3O5. The final stage was the reduction of Ti3O5 to the sub-stoichiometric carbide, TiC0.5. Iron was found to stabilise the Ti3O5 phases which were absent from an iron-free system, this is presumed to be due to partial substitution of trivalent iron for trivalent titanium.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 395, Issues 1â2, 31 May 2005, Pages 141-148
Journal: Journal of Alloys and Compounds - Volume 395, Issues 1â2, 31 May 2005, Pages 141-148
نویسندگان
N. Setoudeh, A. Saidi, N.J. Welham,