کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1604737 1516016 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical properties of SiC composites incorporating SiC-coated multi-walled carbon nanotubes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Mechanical properties of SiC composites incorporating SiC-coated multi-walled carbon nanotubes
چکیده انگلیسی

Multi-walled carbon nanotubes (MWCNTs) were coated with a nanometer-sized SiC polycrystalline layer by the reaction of SiO(g) and CO(g). Nanometer-sized SiC powders were mixed with 1–5 vol% SiC-coated MWCNTs and successfully sintered at 1800 °C by means of pulsed electric current sintering. These composites showed superior microhardness of 30.6 GPa and toughness of 5.4 MPa m1/2 compared to monolithic SiC ceramics due to the improvement of adhesion between MWCNTs and the SiC matrix by the SiC coating. The microhardness and toughness of the monolithic SiC ceramics are 25.5 GPa and 4.8 MPa m1/2, respectively. The SiC-coated MWCNTs/SiC composites showed an interesting behavior with the elastic recovery when undergoing an indentation test.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 25, Issue 4, July 2007, Pages 322–327
نویسندگان
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