11 articles in this issue
Yurianto Yurianto,Sulardjaka Sulardjaka,Susilo Adi Widyanto,Padang Yanuar
Quenched and tempered steels are needed for highly-stressed structures in military and non-military equipment. This paper was written for studying the structure and properties (hardness and impact energy absorbed) of medium-carbon and carbon-manganese ste... see more
Serik Mashekov,Yerik Nugman,Aigerim Mashekova,Aimangul Sekerbek,Nurbolat Sembayev,Symbat Akparova
The paper proposes a radial shear mill (RSM) of a new design, which allows manufacturing metal rods of small diameters or wires with a fine-grained structure. The paper presents the results of modeling the evolution of the structure during hot rolling-pre... see more
Vadym Volokh,Endar Kim,Tetiana Fesenko,Artem Petryshchev,Sergey Artemev,Bohdan Tsymbal,Lesia Makarenko,Andrii Hedzyk,Volodymyr Slabko,Vasyl Khmelovskyi
Phase composition and microstructure of the doping alloy obtained by regenerative smelting of technogenic wastes were studied. This is necessary to determine technological characteristics that increase the degree of extraction of doping elements during th... see more
Aleksandr Dykha,Vladyslav Svidersky,Igor Danilenko,Viktor Bilichenko,Yuri Kukurudzyak,Ludmila Kirichenko
This paper reports the analytical and experimental studies aimed at designing and modeling fluoropolymer anti-friction materials. The optimal ratios of the total surface of polymer particles to the total surface of filler particles for different brands of... see more
Anatolii Kobets,Viktor Aulin,Oleksii Derkach,Dmytro Makarenko,Andrii Hrynkiv,Dmytro Krutous,Evgeniy Muranov
This paper reports a comparative study of the polymeric materials operating in conjugation with steel. In agricultural engineering, a significant role in structural materials belongs to polymer composites. This type of material is characterized by the low... see more
Tri Arini,Latifa Hanum Lalasari,Lia Andriyah,Nadia Natasha,Fariza Yunita,Florentinus Firdiyono,Adjie Maulana Syaputra,Amalia Solehah,Achmad Subhan
Fluorine-doped tin oxide (FTO) thin films have been deposited by the modified spin coating method at 3000 rpm using tin (II) chloride dehydrate (SnCl2×2H2O) as a precursor, ammonium fluoride (NH4F) as a dopant and ethanol as a solvent. The aim of thi... see more
Valeria Subbotin?,Oleg S?b?l,Valery Belozerov,Valentin Shnayder,Oleksandr Smyrnov
It was determined that in an electrolyte containing 1.75 g/L KOH+1 g/L Na2SiO3+2 g/L NaAlO2, with an increase in current density from 15 A/dm2 to 50 A/dm2, the phase composition of the coating changes. In the three-phase state (al... see more
Oleksandr Gibalenko,Victoriia Gibalenko,Olena Bocharova
The study suggests a method for determining the characteristic and desired values of corrosion resistance indicators to estimate the reliability parameters of systems of anticorrosive protection of structures (SAPS). The approach is based on developing ro... see more
Dmitro Starokadomsky,Dmitry Rassokhin,Anatoly Ishchenko,Nadia Sigareva,Maria Reshetnyk
This paper reports the results of studying epoxy compositions with gypsum taken in the form of dispersed powders in the original and water-hardened form. The exact pattern has been shown in the way the introduction of a gypsum additive in the amount of 50... see more
Vadym Kovalenko,Valerii Kotok
Nail polish, in particular gel nail polish, is the most used cosmetic product. The components of the gel polish, which determine both toxicity and consumer color properties, are pigments. Zn-Al layered double hydroxides intercalated with anionic food dyes... see more