کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1623319 | 1516408 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of hafnium powder by calciothermic reduction of HfO2 in molten chloride bath
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation of hafnium powder by calciothermic reduction of HfO2 in molten chloride bath Preparation of hafnium powder by calciothermic reduction of HfO2 in molten chloride bath](/preview/png/1623319.png)
چکیده انگلیسی
Hafnium oxide was reduced to metal by using Ca dissolved in the molten CaCl2–NaCl mixture. The investigations were carried out at a temperature lower than the melting point of Ca which ensured minimum reductant loss through evaporation .The oxygen content in the produced metal was lowered under 1000 ppm level and it was highly depended on the amount of Ca and the amount of salt. Various salt compositions have been studied in order to select the best composition for the reduction process and it was found that the system containing 30 mol% NaCl could produced hafnium metal with 960 ppm oxygen.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 469, Issues 1–2, 5 February 2009, Pages 571–575
Journal: Journal of Alloys and Compounds - Volume 469, Issues 1–2, 5 February 2009, Pages 571–575
نویسندگان
A.M. Abdelkader, A. Daher,