کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7886297 | 1509786 | 2018 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Inverse precipitation synthesis of ZrO2 nanopowder and in-situ coating on MWCNTs
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
ZrO2-multiwall carbon nanotubes composite was successfully prepared by simple inverse precipitation method. The effects of initial ZrOCl2·H2O concentration (0.5 and 1â¯g) and stirring speeds (400, 800 and 1200â¯rpm) on the phase formation, texture, surface characterization and microstructural evolutions were studied. Results from XRD showed that almost all of the synthesis ZrO2 exists in tetragonal phase; however, depending on ZrOCl2·8H2O concentration and stirring speed, some peaks of monoclinic phase existed in the composites. Texture studies illustrated the (111) plane preferred growth for tetragonal phases. The FTIR results confirmed the formation of different oxide groups in the surface of the CNTs. In addition, formation of the tetragonal ZrO2 on the surface of CNTs was proved by Raman spectroscopic analyses. The results from microscopic images showed that the size of the ZrO2 nanoparticles significantly decreased (30â¯nm) with an increase in the initial ZrOCl2·8H2O concentration to 1â¯g.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 12, 15 August 2018, Pages 13556-13564
Journal: Ceramics International - Volume 44, Issue 12, 15 August 2018, Pages 13556-13564
نویسندگان
Shadab Sarmast Ghahfarokhi, Rasoul Sarraf Mamoory, Ali Ghatei Kalashami,