Alla Kasakewitsch
Clausthal University of Technology
Ultimate tensile strengthCrystalliteDeformation (engineering)Composite materialCompression (physics)MetallurgyMaterials scienceWork hardeningExtrusionCompressive strengthTexture (crystalline)Atmospheric temperature rangeThermal expansionMagnesiumCrystal twinningPowder metallurgyAnisotropyNanocomposite
3Publications
2H-index
21Citations
Publications 2
Newest
#1Zuzanka Trojanová (Charles University in Prague)H-Index: 21
#2K. Dash (Charles University in Prague)H-Index: 6
Last. Alla Kasakewitsch (TUC: Clausthal University of Technology)H-Index: 2
view all 5 authors...
Pure microcrystalline magnesium (µMg) was reinforced with hexagonal boron nitride (hBN) nanoparticles and was fabricated by powder metallurgy process followed by hot extrusion. For comparison pure magnesium powder was consolidated by hot extrusion too. Both materials exhibited a significant fiber texture. Mg-hBN nanocomposites (nc) and pure Mg specimens were deformed between room temperature and 300 °C under tension and compression mode. The yield strength and ultimate tensile and compression st...
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#1Zuzanka Trojanová (Charles University in Prague)H-Index: 21
#2Zdeněk Drozd (Charles University in Prague)H-Index: 8
Last. Alla Kasakewitsch (TUC: Clausthal University of Technology)H-Index: 2
view all 5 authors...
Abstract Magnesium with 3 vol% of BN nanoparticles was prepared by milling, compacting and hot extrusion. Pure Mg samples were also compacted and hot extruded under the same conditions. Thermal expansion of cylindrical samples was measured over a wide temperature range from room temperature to 400 °C. The temperature dependence of the thermal expansion coefficient of both nanocomposite and extruded Mg differs from the dependence obtained for polycrystalline Mg with the random orientation of grai...
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