Abstract:This study for the first time evaluated quantitatively the effect of carbon nanofibre (CNF) reinforcement on tribological properties of epoxy nanocomposites. Nanocomposites containing 0.0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0 wt% CNF were fabricated by casting technique after dispersing CNFs in epoxy resin by ultrasonication and mechanical stirring. Sliding and abrasive wear were investigated using a pin-on-disc apparatus and evaluated statistically for the effect of CNF reinforcement by one-way ANOVA. Sliding wear… Show more
“…A small number of unique components have been proposed to illustrate the way where the outer material is eliminated. Khanam et al [1] investigated about the abrasive wear resistance of CNF enforced epoxy nanocomposites at different percentage of CNF concentration. It has been observed ( Figure 2) that the neat epoxy composite revealed deep plowing line, many microcracks and surface covered with wear debris of detached matrix over the entire worn surface.…”
Section: Types Of Wear 31 Abrasive Wearmentioning
confidence: 99%
“…Thermal spraying dates back to the early 1900s when Dr. Schoop [1] first carried out experiments in which molten metal were atomized by a stream of high-pressure gas and propelled on to a surface. The Schoop process consisted of a crucible filled with molten metal while the propellant, hot compressed air, provided enough pressure to break up the molten metal, creating a spray jet.…”
Section: Thermal Spray Coatingmentioning
confidence: 99%
“…SEM image of worn surface after abrasive wear test of (a) neat epoxy, (b) 0.5 wt% CNF, (c) 1.0 wt% CNF, (d) 1.5 wt% CNF, (e) 2.0 wt% CNF and ( f) 2.5 wt% CNF[1].…”
Wear is the damaging, gradual removal or deformation of material at solid surfaces. Causes of wear can be mechanical or chemical. The study of wear and related processes is known as tribology. Abrasive wear alone has been estimated to cost 1–4% of the gross national product of industrialized nations. The current chapter focuses on types of wear phenomena observed in the industries (such as abrasive wear, adhesive wear, fretting wear, fatigue wear, erosive wear and corrosive wear), their mechanisms, application of surface coating for the protection of the surface from the industrial wear, types of surface coatings, thermal spray coating, types of thermal spray coating and its application in industry to protect the surface from wear. The detail information about the wear phenomena will help the industries to minimize their maintenance cost of the parts.
“…A small number of unique components have been proposed to illustrate the way where the outer material is eliminated. Khanam et al [1] investigated about the abrasive wear resistance of CNF enforced epoxy nanocomposites at different percentage of CNF concentration. It has been observed ( Figure 2) that the neat epoxy composite revealed deep plowing line, many microcracks and surface covered with wear debris of detached matrix over the entire worn surface.…”
Section: Types Of Wear 31 Abrasive Wearmentioning
confidence: 99%
“…Thermal spraying dates back to the early 1900s when Dr. Schoop [1] first carried out experiments in which molten metal were atomized by a stream of high-pressure gas and propelled on to a surface. The Schoop process consisted of a crucible filled with molten metal while the propellant, hot compressed air, provided enough pressure to break up the molten metal, creating a spray jet.…”
Section: Thermal Spray Coatingmentioning
confidence: 99%
“…SEM image of worn surface after abrasive wear test of (a) neat epoxy, (b) 0.5 wt% CNF, (c) 1.0 wt% CNF, (d) 1.5 wt% CNF, (e) 2.0 wt% CNF and ( f) 2.5 wt% CNF[1].…”
Wear is the damaging, gradual removal or deformation of material at solid surfaces. Causes of wear can be mechanical or chemical. The study of wear and related processes is known as tribology. Abrasive wear alone has been estimated to cost 1–4% of the gross national product of industrialized nations. The current chapter focuses on types of wear phenomena observed in the industries (such as abrasive wear, adhesive wear, fretting wear, fatigue wear, erosive wear and corrosive wear), their mechanisms, application of surface coating for the protection of the surface from the industrial wear, types of surface coatings, thermal spray coating, types of thermal spray coating and its application in industry to protect the surface from wear. The detail information about the wear phenomena will help the industries to minimize their maintenance cost of the parts.
“…Also, it is due to the bulk transfer resistance provided by the transfer film which was also observed from the earlier study. 60 Figure 13.Microstructure of the worn surface (a) pure UHMWPE (b) Composite 1 and (c) Composite 2.UHMWPE: ultrahigh molecular weight polyethylene.…”
This study proposes a suitable composite material for acetabular cup replacements in hip joint that involves ultrahigh molecular weight polyethylene, a clinically proven material, as the matrix. To design new ultrahigh molecular weight polyethylene composites with multiple reinforcements for the improvement in mechanical and tribological performance, artificial neural network and genetic algorithm, the two artificial intelligence techniques, are employed. Published reports on the use of ultrahigh molecular weight polyethylene reinforced with multi-walled carbon nanotube and graphene are used as database to develop two artificial neural network models for Young's modulus and tensile strength. The optimum solutions are obtained using genetic algorithm, where the artificial neural network models are used as the objective functions. Two different composites, derived from the optimum solutions, are made reinforcing both multi-walled carbon nanotube and graphene. Tensile and wear tests show significant enhancement in the properties. The structures of the composites are also characterized, and wear mechanisms are discussed.
“…CNTs as the reinforcing filler led to a significant enhancement in the performance of the resulting composites by improving their mechanical properties. It is well known that the ultimate properties of the nanocomposites mostly depend on the dispersion of the nanofiller and their interfacial bonding with the polymer matrix . The functionalization of CNTs is the most commonly practiced method for improving the interfacial strength of CNTs with the matrix material.…”
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