کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1417660 985975 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tribological properties of graphitic nanoparticles produced by laser vaporization of graphite in nitrogen
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Tribological properties of graphitic nanoparticles produced by laser vaporization of graphite in nitrogen
چکیده انگلیسی

Graphitic particles showing polyhedral structures of 100–800 nm diameter (average 327 nm) were fabricated by laser vaporization of graphite in a high pressure N2 gas environment (0.9 MPa). From X-ray photoelectron spectroscopy, three atomic percent (at.%) of the nitrogen atoms was detected in the polyhedral graphite (PG) particles. Nonuniformity in the distribution of nitrogen indicates bonding formation at defects or domain boundaries in the polyhedra forming the PG particles. Adding the PG particles improve the tribological properties of a polyimide-based composite. In particular, the PG particles provided better wear-resistance than those of graphite and related nanocarbon materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 45, Issue 4, April 2007, Pages 880–884
نویسندگان
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