Anna Sycheva
YOU?
Author Swipe
METHODICAL APPROACHES FOR BITUMEN PROPERTIES STUDYING AND ITS CONTENT ASSESSING IN CARBONATE DEPOSIT CORE SAMPLES OF EASTERN SIBERIA Open
Oil and gas fields in Eastern Siberia play an important, strategic role in the development and reproduction of hydrocarbon reserves. Oil and gas-bearing carbonate rocks of the Lower Cambrian deposits are characterized by a complex structur…
Effects of milling temperature and time on phase evolution of Ti-based alloy Open
Ti50Cu25Ni20Sn5 (at.%) powder was subjected to high-energy ball milling at room temperature and -78 ?C. As a function of the milling time, evaluation of phases, morphology, and the refinement of grain size were investigated by scanning ele…
Amorphous alloys and differential scanning calorimetry (DSC) Open
A remarkable number of scientific papers are available in the literature about the bulk amorphous alloys and metallic glasses. Today, DSC is an essential tool for amorphous alloys research and development, and of course for quality assuran…
The effect of melt flow induced by RMF on the meso- and micro-structure of unidirectionally solidified Al–7wt.% Si alloy Benchmark experiment under magnetic stirring Open
During the last two decades, many algorithms were developed to simulate the solidification process for different casting methods like ingots, continuous casting of steel and the direct chill cast of aluminum. Experiments performed under ex…
Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam Open
In the present study, a new method for the synthesis of the open-cell soft polyurethane foam (PUF) is developed. Silver nanoparticles are synthesized on the surface of ultrafine grain (100–500 nm) natural zeolite particles and this zeolite…
Synthesis, characterisation and thermal behaviour of Cu-based nano-multilayer Open
Cu/AlN–Al 2 O 3 nano-multilayer (NML) was deposited by magnetron sputtering method on 42CrMo4 steel samples, starting with a 15 nm AlN–Al 2 O 3 layer and followed by 200 alternating layers of 5 nm thick Cu and 5 nm thick AlN–Al 2 O 3 layer…
Cracking of Copper Brazed Steel Joints Due to Precipitation of MnS upon Cooling Open
The process of brazing of different steel grades by pure liquid copper foil was studied to reveal the critical conditions when cracks do or do not appear in the braze upon cooling without any external load. Steel grades C45 (S 0.030 wt.%, …
Investigation of the Melting Point Depression of Copper Nanoparticles Open
In this paper copper nanoparticles (Cu NPs) have been produced by solvothermal method. One of the objectives of the present research was to create Cu NPs using aqueous medium technology. The analysis of the produced particles was performed…
Application of carbonized cellulose-based catalyst in nitrobenzene hydrogenation Open
Carbonized cellulose catalyst support was prepared and decorated with 5 wt% Pd nanoparticles using an impregnation method. According to the SEM images, the carbonized cellulose catalyst support kept its original fibrous structure with an a…
The effect of process control agents and milling atmosphere on the structural changes of Ti<sub>50</sub>Cu<sub>27,5</sub>Ni<sub>10</sub>Zr<sub>10</sub>Co<sub>2,5</sub> master alloy during short time milling Open
Properties of powders made from Ti 50 Cu 27,5 Ni 10 Zr 10 Co 2,5 alloy, milled under different conditions for only 3600 s in total were investigated. For this purpose two different milling atmospheres and two different Process Control Agen…
Phase Transformation and Morphology Evolution of Ti50Cu25Ni20Sn5 during Mechanical Milling Open
Nanocrystalline/amorphous powder was produced by ball milling of Ti50Cu25Ni20Sn5 (at.%) master alloy. Both laser diffraction particle size analyzer and scanning electron microscope (SEM) were used to monitor the changes in the particle siz…
Development of novel ultrafine grain cu metal matrix composites reinforced with Ti-Cu-Co-M (M: Ni, Zr) amorphous-nanocrystalline powder Open
Novel ultrafine grain composites of Cu matrix reinforced with 2-50 wt. % of Ti48Cu39.5Ni10Co2.5 and Ti48Cu39.5Zr10Co2.5 (at. %) amorphous-nanocrystalline alloy particles have been fabricated by powder metallurgy. The composites showed a ho…
Synthesis and Characterization of Copper-Based Composites Reinforced by CuZrAlNiTi Amorphous Particles with Enhanced Mechanical Properties Open
Novel amorphous/crystalline composites were developed combining the ductile copper matrix with hard CuZr-based amorphous powder. The amorphous powders of two compositions, Cu39.2Zr36All4.8Ni10Ti10 and Cu39.2Zr35.2Al5.6Ni10Ti10, produced by…
View article: STUDY OF PHASE FORMATION IN THE SYSTEM SrO-Fe2O3-MoO3-B2O3
STUDY OF PHASE FORMATION IN THE SYSTEM SrO-Fe2O3-MoO3-B2O3 Open
Oxide glasses were obtained by high-speed melt quenching. The glass ceramic samples were prepared by thermal crystallization method in reducing atmosphere. The phase composition and magnetic characteristics of the glass-containing Sr2FeMoO…
Studying amorphization progress in Cu—Zr—Al-based powders during ball milling Open
Six compositions in (Cu49Zr45Al6)100 − x − yNixTiy (x = 0, 5, 10; y = 0, 5, 10) system were selected in order to investigate the amorphization progress caused by milling. The initial structure of the powders before milling, type, and compo…