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
收藏
页码：131 / 141
页数：11
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