Abstract:The article describes the effect of heat treatment on the structural-phase state and properties of a multilayer Cr-Al-Co-Y coating obtained by magnetron sputtering. Heat treatment was carried out at 400, 800 and 1000 °C. The study of the microstructure was carried out by electron microscopy with energy dispersive analysis and powder X-ray diffraction. The surface of the samples was studied by atomic force microscopy. The thickness of the Co-Cr-Al-Y coatings was 1.5–1.7 ± 0.2 µm. The obtained coatings are chara… Show more
“…And as a filler, a mineral diabase powder of the following content was chosen: 10 wt.%, 20 wt.%, 30 wt.% and 40 wt.%, the average particle size of diabase is 14 µm with a bulk density of ~1.1 g/cm 3 . In order to obtain a homogeneous composition of the UHMWPE composite with diabase filler, mechanical mixing of the initial powders was carried out in a ball mill for about 2 min; the rotation frequency was 1500 rpm.…”
Section: Methodsmentioning
confidence: 99%
“…Modern materials science is developing along the path of improving the multifunctionality of materials using surface electron beam processing [ 3 , 4 ] as well as by introducing special filler additives [ 5 ]. To improve the properties of coatings based on UHMWPE, various approaches have been developed, among which are the creation of composite materials [ 6 ], reinforcement with carbon fibers [ 7 , 8 ], nanoparticles [ 9 ] and carbon nanotubes [ 10 ], modification with oxygen plasma [ 11 ] and other composites [ 12 ].…”
This article presents the results of a study of a composite coating made of ultrahigh molecular weight polyethylene (UHMWPE) with a diabase filler obtained by flame spraying. Diabase of 10 wt.%, 20 wt.%, 30 wt.% and 40 wt.% was chosen as a filler. The polymer coating was applied to the St3 metal substrate using temperature control in a conventional flame spraying process. The coating was studied using scanning electron microscopy, X-ray phase analysis, infrared spectroscopy, abrasive wear resistance, microhardness testing and determination of the friction coefficient. It has been shown that diabases do not have a negative effect on the initial chemical structure of UHMWPE and it is not subjected to destruction during flame spraying. The introduction of diabase into the composition of UHMWPE with a content of 10–40% of the total mass does not adversely affect the crystalline structure of the coating. It has been established that with an increase in the volume of the diabase filler, the wear resistance of the composite coating based on UHMWPE increases. It has been determined that with the addition of diabase, the microhardness of the coatings increases.
“…And as a filler, a mineral diabase powder of the following content was chosen: 10 wt.%, 20 wt.%, 30 wt.% and 40 wt.%, the average particle size of diabase is 14 µm with a bulk density of ~1.1 g/cm 3 . In order to obtain a homogeneous composition of the UHMWPE composite with diabase filler, mechanical mixing of the initial powders was carried out in a ball mill for about 2 min; the rotation frequency was 1500 rpm.…”
Section: Methodsmentioning
confidence: 99%
“…Modern materials science is developing along the path of improving the multifunctionality of materials using surface electron beam processing [ 3 , 4 ] as well as by introducing special filler additives [ 5 ]. To improve the properties of coatings based on UHMWPE, various approaches have been developed, among which are the creation of composite materials [ 6 ], reinforcement with carbon fibers [ 7 , 8 ], nanoparticles [ 9 ] and carbon nanotubes [ 10 ], modification with oxygen plasma [ 11 ] and other composites [ 12 ].…”
This article presents the results of a study of a composite coating made of ultrahigh molecular weight polyethylene (UHMWPE) with a diabase filler obtained by flame spraying. Diabase of 10 wt.%, 20 wt.%, 30 wt.% and 40 wt.% was chosen as a filler. The polymer coating was applied to the St3 metal substrate using temperature control in a conventional flame spraying process. The coating was studied using scanning electron microscopy, X-ray phase analysis, infrared spectroscopy, abrasive wear resistance, microhardness testing and determination of the friction coefficient. It has been shown that diabases do not have a negative effect on the initial chemical structure of UHMWPE and it is not subjected to destruction during flame spraying. The introduction of diabase into the composition of UHMWPE with a content of 10–40% of the total mass does not adversely affect the crystalline structure of the coating. It has been established that with an increase in the volume of the diabase filler, the wear resistance of the composite coating based on UHMWPE increases. It has been determined that with the addition of diabase, the microhardness of the coatings increases.
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