Tribological properties of graphitic nanoparticles produced by laser vaporization of graphite in nitrogen

被引：13

作者：

Ishihara, M.

Kokai, F.

Nakayama, A.

Koshio, A.

Shimazu, T.

Tanaka, A.

Sasaki, S.

Koga, Y.

机构：

[1] Natl Inst Adv Ind Sci & Technol AIST, Res Ctr Adv Carbon Mat, Tsukuba, Ibaraki 3058565, Japan

[2] Mie Univ, Dept Chem Mat, Tsu, Mie 5148507, Japan

[3] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

[4] Natl Inst Adv Ind Sci & Technol, Adv Mfg Res Inst, Tsukuba, Ibaraki 3058564, Japan

来源：

CARBON | 2007年 / 45卷 / 04期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/j.carbon.2006.11.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Graphitic particles showing polyhedral structures of 100-800 nm diameter (average 327 nm) were fabricated by laser vaporization of graphite in a high pressure NZ 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. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：880 / 884

页数：5

共 14 条

[1] Formation of nitrogen doped carbon during arc-discharge of carbon rods in the presence of pyrrole [J].