Browsing by Author "Cintins, Arturs"
Now showing items 1-9 of 9
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The influence of Zn2+ ions on the local structure and thermochromic properties of Cu1-xZnxMoO4 solid solutions
Pudza, Inga; Anspoks, Andris; Cintins, Arturs; Kalinko, Aleksandr; Welter, Edmund; Kuzmin, Alexei (Elsevier, 2021)The influence of zinc ions on the thermochromic properties of polycrystalline CuZnMoO (=0.10, 0.50, 0.90) solid solutions was studied by X-ray absorption spectroscopy at the Cu, Zn and Mo K-edges. Detailed structural ... -
Investigation of precipitate in an austenitic ODS steel containing a carbon-rich process control agent
Gräning, Tim; Rieth, Michael; Möslang, Anton; Kuzmin, Alexei; Anspoks, Andris; Timoshenko, Janis; Cintins, Arturs; Purans, Juris (Elsevier Ltd, 2018)Austenitic oxide dispersion strengthened (ODS) steels are one of the candidates as a structural material for high-temperature applications in future power plants. To guarantee the necessary high production yield, the ... -
Low temperature X-ray absorption spectroscopy study of CuMoO4 and CuMo0.90W0.10O4 using reverse Monte-Carlo method
Jonane, Inga; Cintins, Arturs; Kalinko, Aleksandr; Chernikov, Roman; Kuzmin, Alexei (Elsevier Ltd, 2019)Reversible thermochromic phase transition between α- and γ-phases was studied in CuMoO4 and CuMo0.90W0.10O4 using X-ray absorption spectroscopy in the temperature range of 10–300 K. Reverse Monte Carlo modelling with ... -
Neural Network Approach for Characterizing Structural Transformations by X-Ray Absorption Fine Structure Spectroscopy
Timoshenko, Janis; Anspoks, Andris; Cintins, Arturs; Kuzmin, Alexei; Purans, Juris; Frenkel, Anatoly I. (American Physical Society, 2018)The knowledge of the coordination environment around various atomic species in many functional materials provides a key for explaining their properties and working mechanisms. Many structural motifs and their transformations ... -
ODS ferritic steels obtained from gas atomized powders through the STARS processing route: Reactive synthesis as an alternative to mechanical alloying
Pazos, David; Cintins, Arturs; de Castro, Vanessa; Fernández, Pilar; Hoffmann, Jan; Vargas, Wilfredo García; Leguey, Teresa; Purans, Juris; Anspoks, Andris; Kuzmin, Alexei; Iturriza, Iñigo; Ordás, Nerea (Elsevier Ltd, 2018)Oxide Dispersion Strengthened Ferritic Stainless Steels (ODS FS) are candidate materials for structural components in fusion reactors. Their ultrafine microstructure and the presence of a very stable dispersion of Y-Ti-O ... -
Probing the Thermochromic Phase Transition in CuMoO4 by EXAFS Spectroscopy
Jonane, Inga; Cintins, Arturs; Kalinko, Aleksandr; Chernikov, Roman V.; Kuzmin, Alexei (Wiley-VCH Verlag, 2018)Extended X-ray absorption fine structure (EXAFS) spectroscopy at the Mo K-edge is used to follow the thermochromic γ-to-α phase transition in copper molybdate (CuMoO4). The temperature dependence (10–300 K) of the radial ... -
Study of the thermochromic phase transition in CuMo1−xWxO4 solid solutions at the W L3-edge by resonant X-ray emission spectroscopy
Pudza, Inga; Kalinko, Aleksandr; Cintins, Arturs; Kuzmin, Alexei (Elsevier Ltd., 2021)Polycrystalline CuMo1−xWxO4 solid solutions were studied by resonant X-ray emission spectroscopy (RXES) at the W L3-edge to follow a variation of the tungsten local atomic and electronic structures across thermochromic ... -
Understanding of conversion process of magnetron deposited thin films of amorphous ReOx to crystalline ReO3 upon thermal annealing
Polyakov, Boris; Butanovs, Edgars; Ogurcovs, Andrejs; Vlassov, Sergei; Zubkins, Martins; Jonane, Inga; Cintins, Arturs; Kalinko, Aleksandr; Kuzmin, Alexei; Purans, Juris (ACS Publications, 2020)Thin films of rhenium trioxide (ReO3) were produced by reactive DC magnetron sputtering from metallic rhenium target followed by annealing in the air in the range of temperatures from 200C to 350C. Nanocrystalline ... -
X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO4
Jonane, Inga; Cintins, Arturs; Kalinko, Aleksandr; Chernikov, Roman V.; Kuzmin, Alexei (Institute for Low Temperature Physics and Engineering, 2018)Thermochromic phase transition was studied in CuMoO4 using the Cu and Mo K-edge x-ray absorption spec-troscopy in the temperature range of 10-300 K. The hysteretic behavior has been evidenced from the tempera-ture dependence ...