کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
829236 1470337 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Alumina powder assisted carbon nanotubes reinforced Mg matrix composites
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Alumina powder assisted carbon nanotubes reinforced Mg matrix composites
چکیده انگلیسی


• An approach to prepare CNTs-Al2O3 mixture reinforced Mg composite was proposed.
• CNTs were homogeneously dispersed in Mg matrix with the help of alumina ‘vehicles’.
• CNTs-Al2O3 reinforced Mg composites show obviously improved mechanical properties.

Mg matrix composites reinforced by carbon nanotubes (CNTs)-Al2O3 mixture, which was synthesized by in situ growing CNTs over Al2O3 particles through chemical vapor deposition (CVD) using Ni catalyst, were fabricated by means of powder metallurgy process, followed by hot-extrusion. By controlling synthesis conditions, the as-grown CNTs over Al2O3 particles possessed high degree of graphitization, ideal morphology, higher purity and homogeneous dispersion. Due to the ‘vehicle’ carrying effect of micrometer-level A2O3, CNTs were easy to be homogeneously dispersed in Mg matrix under moderate ball milling. Meanwhile, Al2O3 particles as catalyst carriers, together with CNTs, play the roles of synergistic reinforcements in Mg matrix. Consequently, the Mg matrix composites reinforced by CNTs-Al2O3 mixture exhibited remarkable mechanical properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 60, August 2014, Pages 637–642
نویسندگان
, , , , , , , , ,