کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7887334 | 1509790 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of SiC on phase and microstructure of ZrB2 powders synthesized via carbothermal reduction at different temperatures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of SiC on phase and microstructure of ZrB2 powders synthesized via carbothermal reduction at different temperatures Influence of SiC on phase and microstructure of ZrB2 powders synthesized via carbothermal reduction at different temperatures](/preview/png/7887334.png)
چکیده انگلیسی
ZrB2 powders were successfully prepared via carbothermal reduction of ZrO2 with H3BO3 and carbon black under flowing argon. By introducing SiC species into reaction mixtures, the effects of SiC addition on phase composition and morphology of ZrB2 powders thermally treated at different temperatures were investigated. The resultant samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), and energy dispersive spectrometer (EDS). The highly pure ZrB2 with the mean size of 5â¯Âµm could be obtained at 1600â¯Â°C for 90â¯min and the grains presented columnar shapes. After addition of SiC, ZrB2 revealed relatively better crystallinity and finer particle size. Regular columnar ZrB2 grains ranging from 1 to 2â¯Âµm were seen existing after reaction at 1500â¯Â°C for 90â¯min.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 8, 1 June 2018, Pages 8795-8799
Journal: Ceramics International - Volume 44, Issue 8, 1 June 2018, Pages 8795-8799
نویسندگان
Bingying Xie, Li Ma, Dezhi Gao, Xiao Lin, Yu Liu, Yujun Zhang, Hongyu Gong,