НОВЫЕ ГОРИЗОНТЫ ФИЛОСОФИИ ОБРАЗОВАНИЯ В АНАЛИЗЕ ПРОБЛЕМ УПРАВЛЕНИЯ ОБРАЗОВАНИЕМ В УСЛОВИЯХ ГЛОБАЛИЗИРУЮЩЕГОСЯ МИРА

The article explores theory and methodology of certain achievements and possible prospects of national education philosophy de-velopment on the issues of education policy and education management at the national and global levels of public organiza-tion in the context of accelerating the processes of globalization in the 21st century. The basis of conceptual approach to problem solving is the ideas of the noosphere developed by V. I. Vernadsky, which allow defining the strategies of modern educational policy, as well as the specifics of social management of noospheric education at the state and international levels at the be-ginning of the XXI century.В статье осуществлен теоретико-методологический анализ определенных достижений и возможных перспектив развития отечественной философии образования по вопросам образовательной политики и управления образованием на государственном и глобальном уровнях общественной организации в условиях ускорения процессов глобализации в XXI в. Основу концептуального подхода к решению проблем составляют идеи ноосферы В. И. Вернадского, позволяющие определить стратегии современной образовательной политики, а также специфику социального управления ноосферным образованием на государственном и международном уровнях в начале XXI в

KINETIC OF SCANDIUM AND IMPURITIES SORPTION DURING RECOVERY FROM HYDROLISIS SULFURIC ACID AFTER TITANIUM DIOXIDE PRODUCTION

The kinetics of sorption of scandium, iron, thorium, titanium, zirconium, and aluminum by ion-exchanger Tulsion Ch 93 during recovery from hydrolysis sulfuric acid after titanium dioxide production was investigated. It was revealed that sorption of Sc, Al, Ti, Th, Zr took place in the internal diffusion mode, and iron sorption was carried out in the mixed-diffusion mode.Работа выполнена при финансовой поддержке Минобрнауки России, соглашение о предоставлении субсидии от 26.09.2017 г. № 14.575.21.0137 (уникальный идентификатор соглашения RFMEFI57517X0137), в рамках ФЦП “Исследования и разработки по приоритетным направлениям развития научно-технологического комплекса России на 2014–2020 годы”

KINETIC OF SORPTION OF SCANDIUM AND IMPURITIES FROM HYDROLISIS SULFURIC ACID BY AMPHOLYTE PUROLIE S950

The kinetic of sorption of Sc, Zr, Al, Th, Ti and Fe from the hydrolysis sulfuric acid by using ampholyte Purolite S950 was investigated. The limiting stage of sorption of Sc and Zr was internal diffusion, and the sorption of Ti, Al, Fe and Th was carried out in a mixed-diffusion mode

Selective Laser Melting of Al-Based Matrix Composites with Al2O3 Reinforcement: Features and Advantages

Aluminum matrix composites (AMC) are of great interest and importance as high-performance materials with enhanced mechanical properties. Al2O3 is a commonly used reinforcement in AMCs fabricated by means of various technological methods, including casting and sintering. Selective laser melting (SLM) is a suitable modern method of the fabrication of net-shape fully dense parts from AMC with alumina. The main results, achievements, and difficulties of SLM applied to AMCs with alumina are discussed in this review and compared with conventional methods. It was shown that the initial powder preparation, namely the particle size distribution, sphericity, and thorough mixing, affected the final microstructure and properties of SLMed materials drastically. The distribution of reinforcing particles tends to consolidate the near-melting pool-edges process because of pushing by the liquid–solid interface during the solidification process that is a common problem of various fabrication methods. The achievement of an homogeneous distribution was shown to be possible through both the thorough mixing of the initial powders and the precise optimization of SLM parameters. The strength of the AMCs fabricated by the SLM method was relatively low compared with materials produced by conventional methods, while for superior relative densities of more than 99%, hardness and tribological properties were obtained, making SLM a promising method for the Al-based matrix composites with Al2O3

Characterization of Multiphase Oxide Layer Formation on Micro and Nanoscale Iron Particles

The article presents a detailed study and characterization of the oxide layers on the surface of iron particles of various sizes. Ten iron samples with a size range from a few nm to 50 µm were studied in detail using SEM, TEM, XRD, and TGA analysis. The composition of the multiphase oxide layers on the powder surface was investigated. The main components of the oxide layer were FeO, Fe3O4, and Fe2O3. By the obtained data, a model for the calculation of a multiphase oxide layer thickness on the surface of iron particles was proposed. The proposed model was validated and can be used for the characterization and certification of micro– and nanoscale iron particles