کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1627092 | 1516446 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of the Ti6Si2B compound by mechanical alloying
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The present work reports on the synthesis of Ti6Si2B powders by mechanical alloying from elemental Ti-22.2 at%Si-11.1 at%B powder mixtures. The milled powders were then heat-treated at 1100 for 4 h in order to attain the equilibrium microstructure. Samples were characterized by means of X-ray diffraction (XRD), differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and microanalysis via energy dispersive spectrometry and wavelength dispersive spectrometry (EDS/WDS). Results indicated that the silicon and boron atoms were dissolved into the Ti lattice to form a supersaturated solid solution in Ti-22.2Si-11.1B powders milled for 30 h. It was noticed the formation of an amorphous phase in Ti-22.2Si-11.1B powders milled for 100 and 200 h. Thermal analysis indicated the presence of an intense exothermic peak located close to 550 °C during heating of mechanically alloyed Ti-22.2Si-11.1B powders, which was associated to the Ti6Si2B formation. A large amount of Ti6Si2B was formed in Ti-22.2Si-11.1B powders after heating at 1100 °C for 4 h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 427, Issues 1â2, 16 January 2007, Pages 223-228
Journal: Journal of Alloys and Compounds - Volume 427, Issues 1â2, 16 January 2007, Pages 223-228
نویسندگان
Gilbert Silva, Erika Coaglia Trindade Ramos, Alfeu Saraiva Ramos,