کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5468121 | 1518927 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Carbothermic reduction of Panzhihua ilmenite in vacuum
ترجمه فارسی عنوان
کاهش کربوترمی پالیزهوا ایلمنیت در خلاء
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کلمات کلیدی
ایلمنیت، کاهش کربوترمی، خلاء، کاربید تیتانیوم
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
چکیده انگلیسی
The carbothermic reduction of Panzhihua ilmenite with activated carbon in vacuum was investigated by isothermal experiments over the temperature range of 1473-1773Â K. The reaction mechanism of the impurity elements in vacuum was investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and thermodynamic calculation. It was found that when the reaction temperature was higher than 1673Â K and the reaction time was longer than 4Â h, the main phases of the final products obtained at 10Â Pa were Fe and TiC, without the presence of MgO and MgAl2O4 which existed when roasting at 1Â atm in argon atmosphere. The contents of Mg and Mn in the products decreased with increasing the reaction temperature or lowering the pressure. After the carbothermic reduction process, the main impurity elements of Si and Al were dissolved in the iron.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 143, September 2017, Pages 199-208
Journal: Vacuum - Volume 143, September 2017, Pages 199-208
نویسندگان
Guohua Zhang, Haipeng Gou, Kehan Wu, Kuochih Chou,