Real Time TEM Imaging of Compression and Shear of Single Fullerene-Like MoS2 Nanoparticle

被引：79

作者：

Lahouij, Imene ^{[1
]}

Dassenoy, Fabrice ^{[1
]}

Vacher, Beatrice ^{[1
]}

Martin, Jean-Michel ^{[1
]}

机构：

[1] LTDS ECL Ecully, F-69134 Ecully, France

来源：

TRIBOLOGY LETTERS | 2012年 / 45卷 / 01期

关键词：

IF-MoS2; nanoparticles; In situ HRTEM; Nanoindentation; FM/AW additives; Boundary lubrication; TRIBOLOGICAL PROPERTIES; WEAR PROPERTIES; FRICTION; ADDITIVES; ANTIWEAR;

D O I：

10.1007/s11249-011-9873-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The deformation and degradation behavior of single inorganic fullerenes nanoparticles of MoS2 under compression and shear has been observed in real time using a high-resolution transmission electron microscope equipped with a nanoindentation holder. The MoS2 nanoparticles were compressed using a nanoindenter and a truncated diamond tip. For the first time, real time imaging of the deformation of individual nanoparticles clearly shows first orientation changes in the particle shape during loading process followed by a large deformation and the exfoliation of the outer sheets of the fullerene nested structure. Exfoliation was observed for a contact pressure estimated at 1 GPa. Additional sliding tests performed with the nanoindenter gave evidence for a rolling process for lower contact pressures up to 100 MPa.

引用

页码：131 / 141

页数：11