Effect of low nanosized alumina loading fraction on the physicomechanical and tribological behavior of epoxy

被引：34
作者：
Fouly, Ahmed [1 ,2 ]
Alkalla, Mohamed G. [3 ,4 ]
机构：
[1] Minia Univ, Fac Engn, Dept Prod Engn & Mech Design, Al Minya 61519, Egypt
[2] King Saud Univ, Coll Engn, Mech Engn Dept, Riyadh 11421, Saudi Arabia
[3] Univ Surrey, Surrey Space Ctr, Guildford GU2 7XH, Surrey, England
[4] Mansoura Univ, Prod Engn & Mech Design Dept, Mansoura 35516, Egypt
来源：
TRIBOLOGY INTERNATIONAL | 2020年 / 152卷
关键词：
Epoxy nanocomposites; Alumina nanoparticles; Friction finite element model; Low-loading nanocomposites; ENHANCED MECHANICAL-PROPERTIES; SLIDING WEAR BEHAVIOR; SHORT CARBON-FIBERS; THERMAL-PROPERTIES; NANOCOMPOSITES; NANOPARTICLES; PERFORMANCE; COMPOSITES; IMPROVEMENT; DISPERSION;
D O I：
10.1016/j.triboint.2020.106550
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The primary objective of the present study is to investigate how alumina nanoparticles with a low loading fraction by weight affect the physicomechanical and tribological characteristics of epoxy nanocomposites. Alumina nanoparticles with loading fractions of zero, 0.1, 0.2, 0.3, and 0.4 wt% are homogeneously dispersed in the epoxy matrix. Density, hardness, Young's modulus, compressive yield strength, toughness, elasticity, friction coefficient, and specific wear rate of the epoxy composites were estimated experimentally. A finite element model for the friction process is constructed to study the contact stress distribution during composite samples sliding. Results indicate an enhancement in the mechanical and tribological properties of the epoxy nanocomposite. Finally, scanning electron microscopy is used to inspect the worn surfaces of samples to elucidate the wear mechanism.
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页数：13
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