کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625540 | 989626 | 2014 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of composition and milling medium on mechanosynthesis of chlorapatite-alumina composite nanopowders
ترجمه فارسی عنوان
اثر ترکیب و فرزکاری بر روی مکانیسنتز نانوپودر کامپوزیت کلرپاتیت-آلومینای
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
The effects of alumina content and milling medium on the formation of chlorapatite-based composite nanopowders were studied. The powder mixtures with various compositions were activated in a high-energy planetary ball mill for 5 h using two distinct milling media. The first medium (M1) was composed of sealed tempered chrome steel vial and un-fused alumina balls. The second medium (M2) consisted of sealed tempered chrome steel vial and balls. In the presence of different amounts of γ-Al2O3, no mechanochemical reaction occurred in M1 medium. In contrast, in the second medium (M2), chlorapatiteâalumina composite nanopowders were obtained after 5 h of milling in the presence of 4 and 7 wt% alumina. In the presence of 4 wt% alumina, crystallite size and lattice strain of the product were about 30±2 nm and 0.62±0.031%, respectively. With increasing the alumina content to 7 wt%, the lattice strain declined to 0.57±0.029%, while the crystalline size increased to around 32±2 nm. From the electron microscopic images, the synthesized composite nanopowder had a cluster-like structure with an average particle size of about 97 nm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 8, Part A, September 2014, Pages 12265-12272
Journal: Ceramics International - Volume 40, Issue 8, Part A, September 2014, Pages 12265-12272
نویسندگان
Abbas Fahami, Bahman Nasiri-Tabrizi, Reza Ebrahimi-Kahrizsangi,