Testing the mechanical and tribological properties of new metal-polymer nanocomposite materials based on linear low-density polyethylene and Al65Cu22Fe13 quasicrystals

Tribo‐material based on a UHMWPE/RGOC biocomposite for using in artificial joints

“…The crystalline size value of (200) plane decreased in all biocomposites compared with the unfilled polymer. Uflyand et al 27 reported that the influence of fillers on the crystallization process of polymer materials were depend on some factors, for example, the size of the filler particles, their potent surface, the crystalline size of the unfilled polymer and the degree of interaction between the unfilled polymer and the fillers. Fillers can reduce crystallinity due to bind polymer chains or increase crystalline size as nucleation centers in the polymer matrix.…”

FeCo@N‐Doped Nanoparticles Encapsulated in Polyacrylamide‐Derived Carbon Nanocages as a Functional Filler for Polyethylene System

“…[39] The role of the polymer matrix is to separate NPs both from each other and from the external environment, and, in this case, it will act as a stabilizer, while simultaneously improving the properties of the nanocomposite and making it possible to obtain bulk materials. [40] The main methods for preparing such nanocomposites include coacervation, precipitation with a nonsolvent or solvent evaporation, physical adsorption, extrusion (i. e. particles are coated with a shell when a quasicrystalline intermediate is pushed through a film-forming system), sputtering in a fluidized bed, vapor condensation, polymerization on the particle surface, etc. However, from a technological point of view, of particular interest is the mechanochemical treatment of a mixture of a polymer matrix and a nanofiller.…”

“…However, from a technological point of view, of particular interest is the mechanochemical treatment of a mixture of a polymer matrix and a nanofiller. [40] In this case, three modes of grinding the polymer matrix are used: sliding (abrasion), rolling (impact) and vortex (mainly shock). The result of this process is the dispersion and incorporation of filler NPs into the polymer matrix.…”

Tribological, Mechanical and Thermal Properties of Fluorinated Ethylene Propylene Filled with Al-Cu-Cr Quasicrystals, Polytetrafluoroethylene, Synthetic Graphite and Carbon Black

“…Most investigations on QC-reinforced polymers were carried out using thermoplastic polymers as matrix materials. In [ 17 ] linear low-density polyethylene-based composites were studied, and it was found that besides increasing the mechanical properties and wear resistance, filling of this polymer with QC results in a significant decrease in the friction coefficient in relation to pure matrix polymer. A positive effect of high density polyethylene reinforcement with QC was observed in [ 18 ], where an increase in polymer wear resistance as a result of filling was accompanied with no abrasion of an aluminum counterface.…”

“…It should be noted that in most of composites discussed above icosahedral QC alloys of a Al-Cu-Fe [ 13 , 15 , 17 , 19 , 20 , 21 , 23 , 24 , 29 , 30 , 31 , 32 , 33 , 34 ] system or of Al-Cu-Fe systems alloyed with boron [ 14 , 16 , 26 ] were used as reinforcing particles. Indeed, Al-Cu-Fe is the most investigated QC-forming system, as the icosahedral QC phase in this system is thermodynamically stable, easy to synthesize, and possesses a number of advanced properties [ 35 ].…”