Andrej Dubec
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View article: Innovative Carbon Black Replacement in Rubber Compound: Impact of Pyrolytic Carbon Black and Energy-Gypsum By-Products on Vulcanization and Properties
Innovative Carbon Black Replacement in Rubber Compound: Impact of Pyrolytic Carbon Black and Energy-Gypsum By-Products on Vulcanization and Properties Open
This study focuses on the possibility of substituting the conventional carbon black filler N339 in a rubber compound, which also contains an energy-gypsum filler obtained as an industrial by-product, with an alternative carbon filler produ…
View article: Study of the Influence of Perimeter Count on the Mechanical Properties of 3D-Printed PLA
Study of the Influence of Perimeter Count on the Mechanical Properties of 3D-Printed PLA Open
This study investigates the effect of perimeter number on the mechanical and viscoelastic properties of FFF-produced PLA prints. This study follows on from a previous study that focused on the type and volume of infill in 3D printed sample…
View article: Influence of Infill Geometry and Density on the Mechanical Properties of 3D-Printed Polylactic Acid Structure
Influence of Infill Geometry and Density on the Mechanical Properties of 3D-Printed Polylactic Acid Structure Open
Additive manufacturing of polymer composites, also known as 3D printing, is one of the progressive technologies in material engineering. It enables the production of parts with complex geometries while optimizing material efficiency. Polyl…
View article: Utilization of microwave-induced processing of natural kaolinite and its application as an environmentally sustainable filler in polymer composites
Utilization of microwave-induced processing of natural kaolinite and its application as an environmentally sustainable filler in polymer composites Open
Kaolinite was treated with silane and copper acetate using microwave (MW) heating at different time intervals. The prepared kaolinites were utilized as fillers (10 phr) in SMR composites. FT-IR, thermal analysis, and SEM demonstrate altera…
View article: Effect of Filler Content and Treatment on Mechanical Properties of Polyamide Composites Reinforced with Short Carbon Fibres Grafted with Nano-SiO₂
Effect of Filler Content and Treatment on Mechanical Properties of Polyamide Composites Reinforced with Short Carbon Fibres Grafted with Nano-SiO₂ Open
The polyamide PA6 composites reinforced with carbon fibres (CF) are widely studied due to their properties and their high strength to weight ratio. Good adhesion between a filler and a matrix is es-sential for enhancing properties of a res…
View article: Effect of kaolinite modified with Co(II), Cu(II) and Ni(II) salts on selected properties of tread rubber blend
Effect of kaolinite modified with Co(II), Cu(II) and Ni(II) salts on selected properties of tread rubber blend Open
Effect of kaolinite modified with Cu(II), Co(II) and Ni(II) salts as a partial replacement for carbon black (1 and 8 phr) on the properties of the model tread rubber blend was examined. The blends were prepared in a two-stage process in a …
View article: Atmospheric plasma treatment of rubber and its effect on surface characteristics
Atmospheric plasma treatment of rubber and its effect on surface characteristics Open
The changes of rubber blend surface induced by atmospheric plasma at several conditions were studied via FTIR, SEM, contact angle and adhesion measurement. After plasma, the presence of OH, COO- bands of higher intensity was observed, whil…
View article: The Effect of TiO<sub>2</sub> Layers on the Surface Properties of Materials
The Effect of TiO<sub>2</sub> Layers on the Surface Properties of Materials Open
One of the ways to improve or change the surface properties of materials is to apply thin layers. TiO2-based layers are used to protect surfaces against wear or atmospheric and thermal effects (anti-corrosion, anti-abrasive and anti-static…
View article: The Influence of the Geometry of Movement during the Friction Process on the Change in the Tribological Properties of 30CrNiMo8 Steel in Contact with a G40 Steel Ball
The Influence of the Geometry of Movement during the Friction Process on the Change in the Tribological Properties of 30CrNiMo8 Steel in Contact with a G40 Steel Ball Open
Experiments with changes in motion geometry can provide valuable data for engineering and development purposes, allowing a better understanding of the influence of tribological factors on the performance and service life of joints. The pre…
View article: Prewetting Electron Beam Irradiated and Native Sheep Wool Can Affect Their Sorptivity
Prewetting Electron Beam Irradiated and Native Sheep Wool Can Affect Their Sorptivity Open
In this work, the effect of prewetting native and electron beam-modified wool on the resulting sorption of Cu(II) from wool solutions was studied. The following conditions and combinations were applied: 6 mM and 50 mM solutions, prewetting…
View article: Mechanical and tribological properties of the TiB2 coating deposited by HiPIMS method
Mechanical and tribological properties of the TiB2 coating deposited by HiPIMS method Open
In the article, the authors briefly describe the high power impulse magnetron sputtering (HiPIMS) method. This method is briefly characterized in the article. Authors researched the mechanical and tribological properties of the TiB2 coatin…
View article: Effect of the auxiliary cathode on the thickness of the HiPIMS TiAlN coating deposited on the inner surface of the tube
Effect of the auxiliary cathode on the thickness of the HiPIMS TiAlN coating deposited on the inner surface of the tube Open
The paper is focused on influencing the thickness of the TiAlN layer deposited using the high power pulse magnetron sputtering (HiPIMS) method on the inner surface of the tube. The HiPIMS method makes it possible to deposit layers at tempe…
View article: Microstructural Changes and Determination of a Continuous Cooling Transformation (CCT) Diagram Using Dilatometric Analysis of M398 High-Alloy Tool Steel Produced by Microclean Powder Metallurgy
Microstructural Changes and Determination of a Continuous Cooling Transformation (CCT) Diagram Using Dilatometric Analysis of M398 High-Alloy Tool Steel Produced by Microclean Powder Metallurgy Open
The paper deals with the dilatometric study of high-alloy martensitic tool steel with the designation M398 (BÖHLER), which is produced by the powder metallurgy process. These materials are used to produce screws for injection molding machi…
View article: Investigation the effect of cellulose on the structure and properties of polypropylene fibres
Investigation the effect of cellulose on the structure and properties of polypropylene fibres Open
The modification of polypropylene fibre during their production is usually performed with the aim to improve some end‐use properties of final polypropylene textiles. The most common procedure for the modification of polypropylene fibres in…
View article: THE INFLUENCE OF LOW-TEMPERATURE PLASMA ON PERMANENCE OF ANTIMICROBIAL NANO-FINISH
THE INFLUENCE OF LOW-TEMPERATURE PLASMA ON PERMANENCE OF ANTIMICROBIAL NANO-FINISH Open
This paper describes the effect of low-temperature plasma on increasing permanence of surface finish of textile materials using an antimicrobial nanosol. Selected textile materials (polyester and polyamide woven fabrics, polypropylene non-…
View article: DMA Analysis of Plasma Modified PVC Films and the Nature of Initiated Surface Changes
DMA Analysis of Plasma Modified PVC Films and the Nature of Initiated Surface Changes Open
The application of DCSBD (Diffuse Coplanar Surface Barrier Discharge) plasma is referred to as the surface modification/activation of materials. The exposure of material surfaces to DCSBD plasma is initiated by changes in their chemical co…
View article: Stent Wear Analysis for Percutaneous Coronary Interventions
Stent Wear Analysis for Percutaneous Coronary Interventions Open
The given paper deals with the issue of materials used in the treatment of heart attacks. In more de-tail it focuses on individual types of stents and their specific properties. The article describes selected groups of biocompatible metal-…
View article: Austenite Decomposition of a Lean Medium Mn Steel Suitable for Quenching and Partitioning Process: Comparison of CCT and DCCT Diagram and Their Microstructural Changes
Austenite Decomposition of a Lean Medium Mn Steel Suitable for Quenching and Partitioning Process: Comparison of CCT and DCCT Diagram and Their Microstructural Changes Open
The present work deals with the dilatometric study of a hot-rolled 0.2C3Mn1.5Si lean medium Mn steel, mainly suitable for the quenching and partitioning (Q&P) heat treatment in both hot-rolled or cold-rolled condition, subjected to a varia…
View article: The influence of silane on the physico-mechanical properties of vulcanizates using bentonite fillers
The influence of silane on the physico-mechanical properties of vulcanizates using bentonite fillers Open
Layered phyllosilicate fillers have received attention in the polymer industry due to their unique nanoscale sheet-like structure. Adding a small amount of bentonite nanofiller gives rise to improved mechanical, thermal, and gas barrier pr…
View article: Fracture Analysis of High-Strength Screw for Highway Construction
Fracture Analysis of High-Strength Screw for Highway Construction Open
High-strength screws represent one of the main joining or fastening components which are commonly used in the process of installation of frame constructions for information boards or signposts, relating to the traffic roads. The control of…
View article: The Microstructural Study of a Damaged Motorcycle Gear Wheel
The Microstructural Study of a Damaged Motorcycle Gear Wheel Open
The main aim of this article is study the cause of gear wheel failure. This component has worked in the motorcycle gearbox. During the operation of the transmission, the gear wheel tooth was broken, which made it impossible to continue run…
View article: Effect of Selected Cooling and Deformation Parameters on the Structure and Properties of AISI 4340 Steel
Effect of Selected Cooling and Deformation Parameters on the Structure and Properties of AISI 4340 Steel Open
The paper is focused on investigation of the high-strength AISI 4340 steel at various temperature and deformation conditions. The article is divided into two specific analyses. The first is to examine the dilatation behavior of the steel a…
View article: Examination of surface wear on the timing chain tensioner depending on the engine oil contamination
Examination of surface wear on the timing chain tensioner depending on the engine oil contamination Open
The given paper deals with the wear of the tensioner which is produced from aluminium alloy and used of the motorcycle timing chain. This component was made due to the unavailability on the spare parts market. The AlMgSi1 alloy was chosen …
View article: The impact of welding technology on the manufacture of metal baskets
The impact of welding technology on the manufacture of metal baskets Open
The submitted paper is closely connected with the challenging complex of problems relating to degradation of the anti-corrosion parts. The given anti-corrosion parts are represented by welded Cr-Ni steel baskets, which are also known as "h…
View article: Structure and properties of nucleated polypropylene fibres
Structure and properties of nucleated polypropylene fibres Open
This work is focused on the evaluation of the structure and properties of the nucleated polypropylene (PP) fibres prepared by melt spinning technique at lower take-up velocities as pre-oriented fibres (POY) containing 0.3–1.5 wt. % of addi…
View article: Influence of mounting on hanging bolt lifetime
Influence of mounting on hanging bolt lifetime Open
The main objective of this article is analysis of the hanging bolt failure that forms part of the weight transfer device. The base material of this bolt was protected by a surface layer to prevent corrosive influence of the environment. Th…