کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1465325 | 989688 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of the starting materials on the reaction synthesis of Ti3SiC2 Effect of the starting materials on the reaction synthesis of Ti3SiC2](/preview/png/1465325.png)
Ternary carbide of titanium and silicon was produced via mechanical milling and following heat treatment. Effects of the starting materials, milling time and heat treatment temperature were studied. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were utilized to evaluate the structural and morphological evolutions of the ball-milled and annealed powders. Results showed that the ball milling of TiO–Si–C as the starting materials failed to synthesize Ti3SiC2. Additionally, ball milling the elemental powders for shorter milling times resulted in the activation of the powders. However, after longer milling times, Ti–TiC nanocomposite was obtained. Furthermore, during annealing the milled powders, Ti3SiC2–TiC nanocomposite with the mean grain size of 16 nm was synthesized. After 20 h of milling, a very fine microstructure with narrow size of distribution and spheroid particles was achieved.
Journal: Ceramics International - Volume 35, Issue 4, May 2009, Pages 1553–1557