ORAL

SESSION: AdvancedMaterialsWedAM-R7	Marquis International Symposium on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development(3rd Intl Symp. on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development)
Wed Oct, 25 2017	Room: Condesa IB
Session Chairs: Amr Henni; William Proud; Session Monitor: TBA

12:30: [AdvancedMaterialsWedAM04] Invited
New Technology for the Integrated Treatment of Industrial and Landfills Waste Water Using Iron and Aluminum Oxides Nanopowders
Mykola Monastyrov¹ ; Tetiana Prikhna² ; Gennadiy Kochetov³ ; Petro Talanchuk¹ ; Bernd Halbedel⁴ ; Aleksey Vasiliev⁴ ; Michael Eisterer⁴ ; Fernand Marquis⁵ ; ¹Open International University of Human Development "Ukraine", Kiev, Ukraine; ²Institute for Superhard Materials of the National Academy of Sciences of Ukraine, Kiev, Ukraine; ³Kiev National University of Building and Construction, Kiev, Ukraine; ⁴, , ; ⁵San Diego State University, Department of Mechanical Engineering, San Diego, United States;
Paper Id: 324 [Abstract]

The development of new and advanced methods for industrial wastewater treatment, combined with the intensification and operation of energy/resource efficient equipment for treatment processes, made possible their application to industrial water recycle plants and to produce commercial products from waste flows. An energy efficient process is proposed for the synthesis of new highly efficient sorbents - magnetic nano-powders (5 - 500 nm) of polyvalent iron oxides, aluminium oxides by electro erosion dispersion of iron/low-alloyed steel or aluminum granules, or chips with metal evaporation in plasma and further condensation in a working liquid. The nano-powders produced are efficient sorbents for wastewater contaminants— particularly ions of heavy and alkaline-earth (radioactive) metals—and will be used for comprehensive treatment of liquid industrial effluents, including wastewater and exhausted technological solutions. The advantages of the treatments by the nano-sorbents prepared on-line include their high activity, a high degree of removal of heavy metals ions from liquids, while the resulting sediments may be reliably utilised. The method is environmentally friendly, generates no technological wastewater discharges and air emissions, has low expenditure of energy, and requires comparatively small amount of sorbents.

SESSION: AdvancedMaterialsWedAM-R7	Marquis International Symposium on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development(3rd Intl Symp. on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development)
Wed Oct, 25 2017	Room: Condesa IB
Session Chairs: Amr Henni; William Proud; Session Monitor: TBA

15:00: [AdvancedMaterialsWedAM06] Invited
Lightweight Ti,Nb-Al-C MAX Phases-based Materials: Preparation, Structure, and Properties
Tetiana Prikhna¹ ; Vladimir Sverdun¹ ; Orest Ostash² ; Andriy Ivasyshyn² ; Myroslav Karpets¹ ; Thierry Cabioc'h³ ; Lucyna Jaworska⁴ ; Patrick Chartier³ ; Viktor Moshchil¹ ; Jolanta Cyboroń⁴ ; Tetiana Zimych¹ ; Alexandra Starostina¹ ;⁰ ; Fernand Marquis⁵ ; Andrzej Kalinka⁶ ; Andrzej Kalinka⁶ ; Sergey Dub⁶ ; Anatoliy Kostornov⁶ ;⁰ ;⁰ ; ¹Institute for Superhard Materials of the National Academy of Sciences of Ukraine, Kiev, Ukraine; ²Karpenko Physical-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine; ³Universite de Poitiers, CNRS/Laboratoire PHYMAT, Chasseneuil Futuroscope Cedex, France; ⁴The Institute of Advanced Manufacturing Technology, Krakow, Poland; ⁵San Diego State University, Department of Mechanical Engineering, San Diego, United States; ⁶, , ;
Paper Id: 323 [Abstract]

This paper presents and discusses the interrelations between preparation, structure, and properties of Ti–Al–C MAX-phases-based materials of the 211 and 312 structural types, and materials based on (Ti, Nb)–Al–C solid solution of the 312 type. The materials were prepared in vacuum under 1.6×10-3 Pа, by pressureless synthesis in argon under 0.1 MPa, hot pressing under 30 MPa, and high temperature–high pressure sintering at 2 GPa. The materials structure was investigated using X-ray with Rietveld refinement, SEM and Auger spectroscopy. The physical and mechanical properties: hardness, fracture toughness, bending and compressive strength, Young modulus, logarithmic decrement of damping oscillations, friction coefficient, strength stability in hydrogen at 600 oC, long-term oxidation resistance in air at 600 oC, 1000 h, stability in radiation environment and electrical resistivity were measured. These properties make these materials very promising as interconnectionion material for hydrogen fuel cells, damping and current collector materials, polishing powders for jewelry stones, and many other applications.

SESSION: AdvancedMaterialsThuAM-R7	Marquis International Symposium on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development(3rd Intl Symp. on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development)
Thu Oct, 26 2017	Room: Condesa IB
Session Chairs: Ryuichi Tomoshige; A.G. Mamalis; Session Monitor: TBA

11:30: [AdvancedMaterialsThuAM02] Invited
Lightweight Ceramics Based on Aluminum Dodecaboride (AlB12)
Tetiana Prikhna¹ ; Pavlo Barvitskiy¹ ; Sergey Dub¹ ; Vladislav Domnich² ; Myroslav Karpets¹ ; ¹Institute for Superhard Materials of the National Academy of Sciences of Ukraine, Kiev, Ukraine; ²Department of Materials Science and Engineering, Rutgers, The State University of New Jersey, Piscataway, United States;
Paper Id: 322 [Abstract]

Lightweight shockproof ceramics based on aluminum dodecaboride (AlB12) hold great potential for a wide range of applications, such as protective armor or constructional ceramics for nuclear power plants. Interest in higher aluminum borides and aluminum dodecaboride in particular exists for a long time. However, these materials have not found widespread use because of the lack of industrial and semi-industrial technologies for their powder production. At present, aluminum dodecaboride powders are produced in small amounts in laboratories. In this regard, the processes of sintering of aluminum borides and properties of the consolidated materials on their basis have not been sufficiently studied and practically are not described in the literature. Higher aluminum borides were studied from the point of view of their use as solid fuel, abrasives, explosives and additives to the boron-carbide-based materials. The results of the complex investigation of AlB12-based ceramics sintered from submicron -AlB12 powder at varying pressures and temperatures will be discussed. The effect of C and TiC additions on the structure and mechanical properties of the resultant products is also investigated. Materials sintered from -AlB12 powder at 30 MPa, 2080-1950oC were found to contain 94-98% of -AlB12 ( = 2.53-2.58 g/cm3) and have the following mechanical properties: hardness, HV (49 N) = 24.1 GPa; fracture toughness, K1c (49 N) = 4.9 MPa·m0.5; bending strength, Rbs = 336 MPa; and compressive strength, Rcs = 378 MPa. The sintering pressure of 2 GPa resulted in the formation of dense -AlB12 at 1200-1400oC with much lower hardness, HV (49 N) = 15.1-15.9 GPa, and higher fracture toughness, K1c (49 N) = 5.6  1.3 MPa·m0.5. Addition of 17% C to the -AlB12 powder changed the phase composition of the material sintered at 30 MPa, 1950 °C to 86% AlB12C2 with  = 2.67 g/cm3 and lead to the increase of K1c (49 N) to 5.9 MPa·m0,5 and Rcs to 423 MPa. The material sintered from -AlB12 powder at 30 MPa and 1950 °C with 20 % TiC addition contained 74% AlB12C2, 22% TiB2, 4% Al2O3, had high mechanical characteristics, HV (49N) = 28.9 GPa, K1c (49 N) = 5.2 MPa·m0.5, Rbs = 633 MPa and Rcs = 640 MPa, but its density increased to =3.2 g/cm3. Addition of 12% TiC allowed formation of the material with  = 2.74 g/cm3, HV (49N) = 19.4 GPa, K1c (49 N) = 7 MPa·m0.5, and phase composition of 49% AlB12C2, 34% -AlB12, 14% TiB2. The SEM study revealed even more complicated structures, possibly due to the formation of solid solutions.