کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7993588 | 1516154 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Direct synthesis of Ti3AlC2-Al2O3 nanocomposite by mechanical alloying
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, Ti3AlC2/Al2O3 nanocomposite powder was synthesized via mechanical alloying from TiO2, Al, and C as raw materials. Phase development and structural changes during ball milling were investigated by X-ray diffraction technique (XRD), field-emission gun scanning electron microscopy (FESEM) and transition electron microscopy (TEM). Results showed that TiAl, TiC and Al2O3 intermediate phases were formed after 20Â h milling of starting materials. With the increase of milling time to 40Â h, the desired Ti3AlC2/Al2O3 nanocomposite was achieved. It can be seen that Ti3AlC2 is not synthesized by a single reaction between TiO2, Al, and C and is occurred with a series of reactions between intermediate products (TiAl and TiC). TEM image of 40Â h milled powder confirmed that the synthesized Ti3AlC2/Al2O3 powder has nanosized particles in the range of 50Â nm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 740, 5 April 2018, Pages 118-123
Journal: Journal of Alloys and Compounds - Volume 740, 5 April 2018, Pages 118-123
نویسندگان
M. Zarezadeh Mehrizi, R. Beygi,