A. Ragulya
National Academy of Sciences of Ukraine
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Publication
Featured researches published by A. Ragulya.
Archive | 2013
Dmytro Demirskyi; A. Ragulya
Microstructural evolution and grain growth kinetics of nanocrystalline titanium nitride powders were investigated, when being isothermally annealed using microwave and conventional sintering. The results show that, microwave sintering of nanocrystalline TiN results in fine microstructure ~220 nm, as compared to the conventional sintering 335 nm. Grain growth process during microwave sintering occurred mainly by mechanism of grain-boundary diffusion with an activation energy of 230 kJ mol−1, while in case of conventional sintering, the mechanism of volume diffusion was assumed with the activation energy of 390 kJ mol−1.
Journal of Alloys and Compounds | 2012
Dmytro Demirskyi; Hanna Borodianska; Dinesh K. Agrawal; A. Ragulya; Yoshio Sakka; Oleg Vasylkiv
Ceramics International | 2011
Dmytro Demirskyi; A. Ragulya; Dinesh K. Agrawal
Scripta Materialia | 2010
Dmytro Demirskyi; Dinesh K. Agrawal; A. Ragulya
Journal of Alloys and Compounds | 2011
Dmytro Demirskyi; Dinesh K. Agrawal; A. Ragulya
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing | 2010
Dmytro Demirskyi; Dinesh K. Agrawal; A. Ragulya
Materials Letters | 2010
Dmytro Demirskyi; Dinesh K. Agrawal; A. Ragulya
Ceramics International | 2014
Dmytro Demirskyi; Dinesh K. Agrawal; A. Ragulya
Scripta Materialia | 2013
Dmytro Demirskyi; J. Cheng; Dinesh K. Agrawal; A. Ragulya
Journal of Alloys and Compounds | 2013
Dmytro Demirskyi; Dinesh K. Agrawal; A. Ragulya
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