Artem Malakho - Academia.edu (original) (raw)
Papers by Artem Malakho
Particle Simulation for Predicting Effective Properties of Short Fiber Reinforced Composites
International Journal of Applied Mechanics, 2016
Novel propargyl-substituted azo-coupled phenolic resins
Polymers for Advanced Technologies, 2015
Ni(II) and Cu(II) based catalysts for propargylated novolac resins curing: Activity study and curing process simulation
European Polymer Journal, 2015
Propargylated novolac resins for fibre-reinforced plastics: Processing aspects
The Canadian Journal of Chemical Engineering, 2015
Russ J Inorg Chem, 2007
The crystallization and dielectric and optical properties of glasses (1 -ı ) Na 2 B 4 O 7 + ı Nb ... more The crystallization and dielectric and optical properties of glasses (1 -ı ) Na 2 B 4 O 7 + ı Nb 2 O 5 , where x = 0.15-0.35, have been studied. The formation of structural entities based on NbO 6 octahedra in the glass has been detected by Raman spectroscopy. In the thermally poled glass, a layer with nonlinear optical properties is formed under the anode surface. The nonlinear optical properties of the poled sample have been studied by the second harmonic generation method using laser radiation. The nonlinear optical coefficient d 33 for the poled glass with the maximal content of niobia is 0.1 pm/V.
Effect of deferrization on continuous basalt fiber properties
Mendeleev Communications, 2015
ChemInform Abstract: Synthesis and Structure of Phosphates M13M24 (PO4)6 (M1: Cu, Co; M2: Fe, Cr, Ga, In) and Their Interaction with Hydrogen
Cheminform, Jun 5, 2001
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Journal of Solid State Chemistry, Feb 1, 2001
Phase formation in the Cu3+1.5xR4-x(VO4)6 (R=Fe and Cr) systems was studied at 670°C by powder X-... more Phase formation in the Cu3+1.5xR4-x(VO4)6 (R=Fe and Cr) systems was studied at 670°C by powder X-ray diffraction. In the Cu3+1.5xFe4-x(VO4)6 system there are two compounds having homogeneity ranges with formula Cu3+1.5xFe4-x(VO4)6 (0.667≤x<0.778) and Cu3+1.5xFe4-x(VO4)6 (-0.333≤x≤-0.167) with structures of mineral lyonsite and mineral howardevansite (or Fe7(PO4)6), respectively. The structures of Cu2.5Fe4.333(VO4)6 and Cu4Fe3.333(VO4)6 were refined by Rietveld method: space group Poverline1, Z=1, a=6.6139(1) Å, b=8.0468(2) Å, c=9.7566(2) Å, α=106.047(2), β=103.806(2), γ=102.157(2) for Cu2.5Fe4.333(VO4)6 and space group Pnma, Z=2, a=4.91029(7) Å, b=10.2867(1) Å, c=17.2135(2) Å for Cu4Fe3.333(VO4)6. In the structure of Cu2.5Fe4.333(VO4)6 vacancies are localized in the octahedral Cu(1) sites. Specimens Cu2.5Fe4.333(VO4)6, Cu2.75Fe4.167(VO4)6, and Cu4Fe3.333(VO4)6 were characterized by Mossbauer spectroscopy. There are three components in Mossbauer spectra for the first two compounds. Iron cations in them occupy two octahedral sites and partially occupy a trigonal-bipyramidal site. In the Cu3+1.5xCr4-x(VO4)6 system only one homogeneity range was found (0.667≤x≤0.75). The compound Cu4.05Cr3.3(VO4)6 was isolated and determined to be isotypic to lyonsite and some molybdates and tungstates. The crystal structure of the compound Cu4.05Cr3.3(VO4)6 was refined by Rietveld method (space group Pnma, Z=2, a=4.89650(8) Å, b=10.2035(2) Å, c=17.1407(3) Å). The face-sharing octahedra M(3)O6 form chains along the (100) direction and are partially occupied by Cu2+. Copper cations locate on the faces of the edge-sharing prisms M(1)O6 which also form chains along the (100) direction. The edge- and corner-sharing octahedra M(2)O6 are occupied by Cu2+ and Cr3+ and constitute incomplete layers in the (001) plane.
X-Ray Powder Diffraction, Mossbauer Spectroscopy, and Thermal Stability OFFE7(PO4)6
Russian Journal of Inorganic Chemistry, 1999
International Conference on X-ray and Neutron Capillary Optics, 2002
International Conference on X-ray and Neutron Capillary Optics, 2002
Magnetic and vibrational properties and crystal structure of Sr{sub 9.2}Co{sub 1.3}(PO) with disordered arrangements of some strontium, cobalt, and phosphate ions
Journal of Solid State Chemistry, 2006
Solid solutions of Sr{sub 9+x}Co{sub 1.5-x}(PO) were found in the compositional range of 0.05=<... more Solid solutions of Sr{sub 9+x}Co{sub 1.5-x}(PO) were found in the compositional range of 0.05=<x=<0.30. The structure of Sr{sub 9.2}Co{sub 1.3}(PO) (x=0.2) was determined from single crystal X-ray diffraction (space group R3-bar m (No. 166); Z=3; a=10.6100(5)A and c=19.6960(5)A; V=1920.17(14)A³; {sub cal}=4.014gcm³; =20.377mm¹) and refined to R=0.0343 and wR=0.0633 for 586 reflections with I>2(I). Sr{sub 9.2}Co{sub 1.3}(PO) is structurally related to
Introduction of Silver in Poled Sodium and Niobium Borophosphate Glasses: Characterization by Electrical Transmitted Current and SHG Measurements
Advanced Materials Research, 2008
... Evelyne Fargin 1 , Marc Dussauze 1 , Artem Malakho 1 , Aurelien Delestre 1 , ... This charge ... more ... Evelyne Fargin 1 , Marc Dussauze 1 , Artem Malakho 1 , Aurelien Delestre 1 , ... This charge migration model, firstly introduced by Proctor and Sutton [12] in 1959, proves, that for creation of a space charge region it is necessary to promote dissociation compared to recombination. ...
Solid State Sciences, 2005
Lead iron phosphate Pb 3 Fe 2 (PO 4 ) 4 has been synthesized by solid state method and characteri... more Lead iron phosphate Pb 3 Fe 2 (PO 4 ) 4 has been synthesized by solid state method and characterized by X-ray powder and electron diffraction, differential scanning calorimetry, Mössbauer and infrared spectroscopy. A structural model for Pb 3 Fe 2 (PO 4 ) 4 is proposed and is refined by the Rietveld method. The compound crystallizes in the monoclinic space group P 2 1 /c with a = 9.0065(6) Å, b = 9.0574(6) Å, c = 9.3057(6) Å, β = 116.880(4) • , V = 677.10(8) Å 3 , Z = 2, R wp = 3.52%, R p = 2.66%. It exhibits a structure with a three-dimensional open framework. The 3D framework is formed by PO 4 tetrahedra and FeO 6 octahedra connected via common vertices. ¾ of cavities in the framework are occupied by lead and ¼ are vacant.
LASERS, OPTICS, AND OPTOELECTRONICS 063101 Resonant photonic band gap structures realized from molecular-beam-epitaxially grown InGaAs/GaAs Bragg-spaced quantum wells (14 pages)
Surface Science, 2003
We demonstrate the controlled formation of highly-ordered rare-earth stearate multilayer Langmuir... more We demonstrate the controlled formation of highly-ordered rare-earth stearate multilayer Langmuir-Blodgett films, novel supramolecular organized structures: hybrid polyanion/rare-earth metal cation/anionic surfactant metal-organic superlattice thin films with separating acidic amphiphile bilayers by highly rare-earth-doped polymeric interlayers and fabrication of closely packed, homogeneous and stable rare-earth metal cation/polyanion complex self-assembled multilayer films in which molecular polyelectrolyte building blocks are held together by complexed polyvalent metal cations. The design and fabrication strategies developed to construct those films are based on the surface and interface trivalent rare-earth metal cation complexation with consecutive formation of multilayer superstructures on the solid substrates. The structure and morphology of the built-up multilayer films were characterized by atomic force microscopy and X-ray diffraction.
Optical Materials, 2006
Transparent and homogeneous sodium borophosphate niobium glasses with good optical quality were o... more Transparent and homogeneous sodium borophosphate niobium glasses with good optical quality were obtained for Nb 2 O 5 proportion up to 50 mol%. Large NLO second-order susceptibilities, up to $5 pm/V for the highest niobium loading, are generated through an efficient thermal poling process which induces a strong space-charge migration of Na + cations. From combined IR, Raman and thermal analyses, we establish that the observed strong increase of v (2) responses with niobium concentration is linked to the extent of the niobium-oxygen 3D structure which enhances the third-order susceptibility.
Materials Science and Engineering: C, 2002
In the present work we have applied the method of the EPR spin probes which allows performing sim... more In the present work we have applied the method of the EPR spin probes which allows performing simultaneously EPR and magnetization measurements to the investigation of magnetism of the Gd stearate Langmuir -Blodgett (LB) films. For this purpose we have prepared and studied by the EPR technique the Gd and Y stearate LB films. Placing the small BDPA crystal on the film surface we have found that for the Gd LB sample the effective g-value of the radical's resonance depends on the film orientation in respect to the external magnetic field direction. The relative shift of the EPR signal corresponded to the magnetization of the film along the field direction. Such effect has not been observed for the Y stearate LB film. The data obtained give an experimental proof for the room temperature magnetic ordering in the gadolinium stearate LB film. D
Magnetic and vibrational properties and crystal structure of Sr9.2Co1.3(PO4)7 with disordered arrangements of some strontium, cobalt, and phosphate ions
Journal of Solid State Chemistry, 2006
Solid solutions of Sr9+xCo1.5−x(PO4)7 were found in the compositional range of 0.05⩽x⩽0.30. The s... more Solid solutions of Sr9+xCo1.5−x(PO4)7 were found in the compositional range of 0.05⩽x⩽0.30. The structure of Sr9.2Co1.3(PO4)7 (x=0.2) was determined from single crystal X-ray diffraction (space group R3¯m (No. 166); Z=3; a=10.6100(5)Å and c=19.6960(5)Å; V=1920.17(14)Å3; ρcal=4.014gcm-3; μ=20.377mm-1) and refined to R1=0.0343 and wR2=0.0633 for 586 reflections with I>2σ(I). Sr9.2Co1.3(PO4)7 is structurally related to β-Ca3(PO4)2 and Sr3(PO4)2 and has disordered arrangements of some Sr2+, Co2+, and PO43− ions. Sr2+ ions at a 9e site are statistically disordered among four positions near the center of symmetry. Co2+ and Sr2+ ions are split along the c-axis to occupy a 6c site that is 75% vacant. The P1O4 tetrahedra are orientationally disordered. Sr2+ ions at an 8-fold coordinated 18h site, Co2+ ions at an octahedral 3a site, and the P2O4 tetrahedra are ordered in the structure of Sr9.2Co1.3(PO4)7. Features of Raman spectra are discussed in relation to the crystallographic structure of Sr9.2Co1.3(PO4)7 and in comparison with Raman spectra of β-Ca3(PO4)2-type and Sr3(PO4)2-type compounds. Sr9.2Co1.3(PO4)7 is paramagnetic between 2 and 300K with an effective magnetic moment of 4.98μB per Co2+ ion.
Particle Simulation for Predicting Effective Properties of Short Fiber Reinforced Composites
International Journal of Applied Mechanics, 2016
Novel propargyl-substituted azo-coupled phenolic resins
Polymers for Advanced Technologies, 2015
Ni(II) and Cu(II) based catalysts for propargylated novolac resins curing: Activity study and curing process simulation
European Polymer Journal, 2015
Propargylated novolac resins for fibre-reinforced plastics: Processing aspects
The Canadian Journal of Chemical Engineering, 2015
Russ J Inorg Chem, 2007
The crystallization and dielectric and optical properties of glasses (1 -ı ) Na 2 B 4 O 7 + ı Nb ... more The crystallization and dielectric and optical properties of glasses (1 -ı ) Na 2 B 4 O 7 + ı Nb 2 O 5 , where x = 0.15-0.35, have been studied. The formation of structural entities based on NbO 6 octahedra in the glass has been detected by Raman spectroscopy. In the thermally poled glass, a layer with nonlinear optical properties is formed under the anode surface. The nonlinear optical properties of the poled sample have been studied by the second harmonic generation method using laser radiation. The nonlinear optical coefficient d 33 for the poled glass with the maximal content of niobia is 0.1 pm/V.
Effect of deferrization on continuous basalt fiber properties
Mendeleev Communications, 2015
ChemInform Abstract: Synthesis and Structure of Phosphates M13M24 (PO4)6 (M1: Cu, Co; M2: Fe, Cr, Ga, In) and Their Interaction with Hydrogen
Cheminform, Jun 5, 2001
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Journal of Solid State Chemistry, Feb 1, 2001
Phase formation in the Cu3+1.5xR4-x(VO4)6 (R=Fe and Cr) systems was studied at 670°C by powder X-... more Phase formation in the Cu3+1.5xR4-x(VO4)6 (R=Fe and Cr) systems was studied at 670°C by powder X-ray diffraction. In the Cu3+1.5xFe4-x(VO4)6 system there are two compounds having homogeneity ranges with formula Cu3+1.5xFe4-x(VO4)6 (0.667≤x<0.778) and Cu3+1.5xFe4-x(VO4)6 (-0.333≤x≤-0.167) with structures of mineral lyonsite and mineral howardevansite (or Fe7(PO4)6), respectively. The structures of Cu2.5Fe4.333(VO4)6 and Cu4Fe3.333(VO4)6 were refined by Rietveld method: space group Poverline1, Z=1, a=6.6139(1) Å, b=8.0468(2) Å, c=9.7566(2) Å, α=106.047(2), β=103.806(2), γ=102.157(2) for Cu2.5Fe4.333(VO4)6 and space group Pnma, Z=2, a=4.91029(7) Å, b=10.2867(1) Å, c=17.2135(2) Å for Cu4Fe3.333(VO4)6. In the structure of Cu2.5Fe4.333(VO4)6 vacancies are localized in the octahedral Cu(1) sites. Specimens Cu2.5Fe4.333(VO4)6, Cu2.75Fe4.167(VO4)6, and Cu4Fe3.333(VO4)6 were characterized by Mossbauer spectroscopy. There are three components in Mossbauer spectra for the first two compounds. Iron cations in them occupy two octahedral sites and partially occupy a trigonal-bipyramidal site. In the Cu3+1.5xCr4-x(VO4)6 system only one homogeneity range was found (0.667≤x≤0.75). The compound Cu4.05Cr3.3(VO4)6 was isolated and determined to be isotypic to lyonsite and some molybdates and tungstates. The crystal structure of the compound Cu4.05Cr3.3(VO4)6 was refined by Rietveld method (space group Pnma, Z=2, a=4.89650(8) Å, b=10.2035(2) Å, c=17.1407(3) Å). The face-sharing octahedra M(3)O6 form chains along the (100) direction and are partially occupied by Cu2+. Copper cations locate on the faces of the edge-sharing prisms M(1)O6 which also form chains along the (100) direction. The edge- and corner-sharing octahedra M(2)O6 are occupied by Cu2+ and Cr3+ and constitute incomplete layers in the (001) plane.
X-Ray Powder Diffraction, Mossbauer Spectroscopy, and Thermal Stability OFFE7(PO4)6
Russian Journal of Inorganic Chemistry, 1999
International Conference on X-ray and Neutron Capillary Optics, 2002
International Conference on X-ray and Neutron Capillary Optics, 2002
Magnetic and vibrational properties and crystal structure of Sr{sub 9.2}Co{sub 1.3}(PO) with disordered arrangements of some strontium, cobalt, and phosphate ions
Journal of Solid State Chemistry, 2006
Solid solutions of Sr{sub 9+x}Co{sub 1.5-x}(PO) were found in the compositional range of 0.05=<... more Solid solutions of Sr{sub 9+x}Co{sub 1.5-x}(PO) were found in the compositional range of 0.05=<x=<0.30. The structure of Sr{sub 9.2}Co{sub 1.3}(PO) (x=0.2) was determined from single crystal X-ray diffraction (space group R3-bar m (No. 166); Z=3; a=10.6100(5)A and c=19.6960(5)A; V=1920.17(14)A³; {sub cal}=4.014gcm³; =20.377mm¹) and refined to R=0.0343 and wR=0.0633 for 586 reflections with I>2(I). Sr{sub 9.2}Co{sub 1.3}(PO) is structurally related to
Introduction of Silver in Poled Sodium and Niobium Borophosphate Glasses: Characterization by Electrical Transmitted Current and SHG Measurements
Advanced Materials Research, 2008
... Evelyne Fargin 1 , Marc Dussauze 1 , Artem Malakho 1 , Aurelien Delestre 1 , ... This charge ... more ... Evelyne Fargin 1 , Marc Dussauze 1 , Artem Malakho 1 , Aurelien Delestre 1 , ... This charge migration model, firstly introduced by Proctor and Sutton [12] in 1959, proves, that for creation of a space charge region it is necessary to promote dissociation compared to recombination. ...
Solid State Sciences, 2005
Lead iron phosphate Pb 3 Fe 2 (PO 4 ) 4 has been synthesized by solid state method and characteri... more Lead iron phosphate Pb 3 Fe 2 (PO 4 ) 4 has been synthesized by solid state method and characterized by X-ray powder and electron diffraction, differential scanning calorimetry, Mössbauer and infrared spectroscopy. A structural model for Pb 3 Fe 2 (PO 4 ) 4 is proposed and is refined by the Rietveld method. The compound crystallizes in the monoclinic space group P 2 1 /c with a = 9.0065(6) Å, b = 9.0574(6) Å, c = 9.3057(6) Å, β = 116.880(4) • , V = 677.10(8) Å 3 , Z = 2, R wp = 3.52%, R p = 2.66%. It exhibits a structure with a three-dimensional open framework. The 3D framework is formed by PO 4 tetrahedra and FeO 6 octahedra connected via common vertices. ¾ of cavities in the framework are occupied by lead and ¼ are vacant.
LASERS, OPTICS, AND OPTOELECTRONICS 063101 Resonant photonic band gap structures realized from molecular-beam-epitaxially grown InGaAs/GaAs Bragg-spaced quantum wells (14 pages)
Surface Science, 2003
We demonstrate the controlled formation of highly-ordered rare-earth stearate multilayer Langmuir... more We demonstrate the controlled formation of highly-ordered rare-earth stearate multilayer Langmuir-Blodgett films, novel supramolecular organized structures: hybrid polyanion/rare-earth metal cation/anionic surfactant metal-organic superlattice thin films with separating acidic amphiphile bilayers by highly rare-earth-doped polymeric interlayers and fabrication of closely packed, homogeneous and stable rare-earth metal cation/polyanion complex self-assembled multilayer films in which molecular polyelectrolyte building blocks are held together by complexed polyvalent metal cations. The design and fabrication strategies developed to construct those films are based on the surface and interface trivalent rare-earth metal cation complexation with consecutive formation of multilayer superstructures on the solid substrates. The structure and morphology of the built-up multilayer films were characterized by atomic force microscopy and X-ray diffraction.
Optical Materials, 2006
Transparent and homogeneous sodium borophosphate niobium glasses with good optical quality were o... more Transparent and homogeneous sodium borophosphate niobium glasses with good optical quality were obtained for Nb 2 O 5 proportion up to 50 mol%. Large NLO second-order susceptibilities, up to $5 pm/V for the highest niobium loading, are generated through an efficient thermal poling process which induces a strong space-charge migration of Na + cations. From combined IR, Raman and thermal analyses, we establish that the observed strong increase of v (2) responses with niobium concentration is linked to the extent of the niobium-oxygen 3D structure which enhances the third-order susceptibility.
Materials Science and Engineering: C, 2002
In the present work we have applied the method of the EPR spin probes which allows performing sim... more In the present work we have applied the method of the EPR spin probes which allows performing simultaneously EPR and magnetization measurements to the investigation of magnetism of the Gd stearate Langmuir -Blodgett (LB) films. For this purpose we have prepared and studied by the EPR technique the Gd and Y stearate LB films. Placing the small BDPA crystal on the film surface we have found that for the Gd LB sample the effective g-value of the radical's resonance depends on the film orientation in respect to the external magnetic field direction. The relative shift of the EPR signal corresponded to the magnetization of the film along the field direction. Such effect has not been observed for the Y stearate LB film. The data obtained give an experimental proof for the room temperature magnetic ordering in the gadolinium stearate LB film. D
Magnetic and vibrational properties and crystal structure of Sr9.2Co1.3(PO4)7 with disordered arrangements of some strontium, cobalt, and phosphate ions
Journal of Solid State Chemistry, 2006
Solid solutions of Sr9+xCo1.5−x(PO4)7 were found in the compositional range of 0.05⩽x⩽0.30. The s... more Solid solutions of Sr9+xCo1.5−x(PO4)7 were found in the compositional range of 0.05⩽x⩽0.30. The structure of Sr9.2Co1.3(PO4)7 (x=0.2) was determined from single crystal X-ray diffraction (space group R3¯m (No. 166); Z=3; a=10.6100(5)Å and c=19.6960(5)Å; V=1920.17(14)Å3; ρcal=4.014gcm-3; μ=20.377mm-1) and refined to R1=0.0343 and wR2=0.0633 for 586 reflections with I>2σ(I). Sr9.2Co1.3(PO4)7 is structurally related to β-Ca3(PO4)2 and Sr3(PO4)2 and has disordered arrangements of some Sr2+, Co2+, and PO43− ions. Sr2+ ions at a 9e site are statistically disordered among four positions near the center of symmetry. Co2+ and Sr2+ ions are split along the c-axis to occupy a 6c site that is 75% vacant. The P1O4 tetrahedra are orientationally disordered. Sr2+ ions at an 8-fold coordinated 18h site, Co2+ ions at an octahedral 3a site, and the P2O4 tetrahedra are ordered in the structure of Sr9.2Co1.3(PO4)7. Features of Raman spectra are discussed in relation to the crystallographic structure of Sr9.2Co1.3(PO4)7 and in comparison with Raman spectra of β-Ca3(PO4)2-type and Sr3(PO4)2-type compounds. Sr9.2Co1.3(PO4)7 is paramagnetic between 2 and 300K with an effective magnetic moment of 4.98μB per Co2+ ion.