Synthesis and Characterization of A New Cadmium Complex, Cadmium [(1,10-phenanthroline)(8-hydroxyquinoline)]Cd(Phen)q
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): Rahul Kumar, Parag Bhargava, Avanish Dvivedi A new photoluminescence material cadmium [(1,10-phenanthroline)(8-hydroxyquinoline)] Cd(Phen)q has been synthesized and characterized. The prepared material Cd(Phen)q was characterized by Fourier-infrared spectroscopy(FTIR),Nuclear magnetic resonance spectroscopy (NMR),Thermo gravimetric analysis (TGA), UV-visible spectroscopy and photoluminescence (PL). Solution of this material Cd(Phen)q in toluene showed absorption maxima at 256nm and 295nm which may be attributed to the moderate energy (...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Structure and Properties of Sol Gel Fabricated Na0.5Nd0.5Bi4Ti4O15 Ceramics
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): Rizwana, P. Sarah Na0.5Nd0.5Bi4Ti4O15 (NNBT) and pure SrBi4Ti4O15 (SBT) ceramics are prepared by sol gel method based on pechini process and their results are compared. Lowering of the sintering temperature and densification of the ceramics are obtained by making use of this fabrication method. The positions of the X-ray diffraction peaks are in good agreement with that of standard orthorhombic pattern. There is a decrease in the lattice parameter values and increase in the orthorhombicity with double ion doping suggesting strong struct...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Structural and Magnetic Properties of Ultrafine CoFe2O4 Nanoparticles
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): K.S. Rao, G.S.V.R.K. Choudary, K.H. Rao, Ch. Sujatha Nanosized Cobalt ferrite (CoFe2O4) particles are prepared through the sol-gel method using polyvinyl alcohol (PVA) as a chelating agent. The powder as prepared is annealed at three different temperatures (400oC, 500oC and 1000oC) for one hour. The X-ray diffraction patterns confirm the spinel structure of the samples. The XRD patterns of the samples indicate broad peaks and the full width at half maximum decreased with increasing annealing temperature. Infrared (IR) spectra of the ...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Characterization of Chemical Reaction on Heat Transfer Through the Nano Fluid
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): G.V.P.N. Srikanth, G. Srinivas, B. Suresh Babu The chemical reaction of metal particle with the solvent is natural and decomposition of the metal particle is a natural phenomenon. But, this decomposition affects the viscosity and the fluid flow. The inclusion of chemical reaction rate parameter in the expression of viscosity given by Graham A.L (Applied Science Research, 37(3), pp.275-286(1981)) address the behavior of the viscosity of the Nano fluid in its flow and heat transfer. The heat transfer is more for large volume fraction of ...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Synthesis and Characterization of Pullulan Acetate Coated Magnetic Nanoparticle for Hyperthermic Therapy
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): D. Saranya, Reshma Rajan, V. Suganthan, A. Murugeswari, N. Arunai Nambi Raj Magnetic nanoparticles have attracted increasing attention due to their potential applications in many industrial fields, even extending their use in biomedical applications like in drug delivery system, Implants, biosensors, lab on a chip, image enhancement, hyperthermia therapy and so on.For better experimental applications magnetic nanoparticles are encapsulated. The coating material used in this study is pullulan. Pullulan is a non toxic, non immunogeni...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Preface to CNT 2014
Publication date: 2015 Source:Procedia Materials Science, Volume 10 (Source: Procedia Materials Science)
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Impact of the Microstructure and Surface Finishing on the Ductility Response of AISI type 304L Steel Tested in High Pressure Hydrogen Gas Atmosphere
Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): Mauro Martín , Wener Theisen The presence of hydrogen in iron alloys leads to an impairment of mechanical properties. This can be related to the production routes and material processing. Microsegregations, grain size and surface finishing play a very important role on the ductility response in hydrogen. Particularly, a more homogeneous distribution of alloying elements, a reduction in grain size and a proper surface finishing improve the material's ductility for a fixed composition. The study material is an AISI type 304L austenitic stain...
Source: Procedia Materials Science - July 3, 2015 Category: Materials Science Source Type: research
Analysis of the Importance of the Crack Closure in the Driving Force for the Fatigue Crack Growth in Metastable Austenitic Stainless Steels
Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): D.F. Martelo , M.D. Chapetti In this paper we study the fatigue crack propagation behavior of an austenitic metastable stainless steel in the near threshold region. The steel used in this research is investigated in two different microstructural conditions: annealed and cold rolled. The fatigue crack propagation tests were conducted using the procedure of ΔK decreasing constant R, and ΔK decreasing constant Kmax. The assessment of the fatigue crack propagation curves using the crack growth trajectory map proposed by Sadananda and Vasudeva...
Source: Procedia Materials Science - July 3, 2015 Category: Materials Science Source Type: research
Zinc + Nickel + Microparticles Coatings: Production Process and Structural Characterization
Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): Zulema A. Mahmud , Franco Amelotti , Carlos Serpi , Jorge Maskaric , Martín Mirabal , Norma Mingolo , Liliana Gassa , Paulo Tulio , Gabriel Gordillo The properties of coatings obtained from Ni-Zn electrodeposition baths containing microparticles is analyzed. The incorporation of alumina or silicon carbide microparticles improves properties of hardness and protection of the coating. The Ni content in the alloy, which normally varies between 10 and 15%, was measured by X-ray fluorescence. ZnNi-particles coatings show a high nickel con...
Source: Procedia Materials Science - July 3, 2015 Category: Materials Science Source Type: research
Evaluation of Durability and Mechanical Properties of the Cement Mortar Added with Slag Blast Furnace
Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): M.M. López , Yaneth Pineda , Oscar Gutiérrez An evaluation of durability and mechanical strength in a cement mortar is presented in this work. A slag coming from steelmaking processes has been added to the mortar. This slag has similar properties to the ones of cement, and it has been added to the mortar in different proportions with two sizes of granulometry. With this addition, better properties against the action of sulfates are expected, and therefore, the presence of fracture and wear in the structures can be reduced. This allows mo...
Source: Procedia Materials Science - July 3, 2015 Category: Materials Science Source Type: research
Assessing Wear Performance of Two High-carbon Hadfield Steels Through Field Tests in the Mining Industry
Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): Rodrigo Lencina , Claudia Caletti , Katya Brunelli , Rodolfo Micone Hadfield steels are widely used in the production of liners for rock crushing applications due to their good wear resistance and high toughness. Because of the high replacement frequency and cost of these liners, improvements in the properties of Hadfield steels may represent a great economic benefit for mining operators. Therefore, correctly assessing wear performance is a relevant matter in the research and development activities regarding Hadfield steels. However, conv...
Source: Procedia Materials Science - July 3, 2015 Category: Materials Science Source Type: research
Microstructural Characterization of Zr-2.5Nb Alloy by Scanning Electron Microscopy and Transmission Electron Microscopy. Semiautomatic Method
Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): Mariana Lani Saumell , Raul A. Versaci , Patricia B. Bozzano The Embalse nuclear power station (CNE) is a CANada Deuterium Uranium (CANDU) reactor. The CANDU reactor pressure tubes are made of a Zr-2.5Nb alloy. This alloy has a biphasic structure αZr+βNb, being the α-Zr phase the majority phase. One of the acceptance criteria for the Zr-2.5Nb alloy pressure tubes of the CNE is based on the α-Zr phase width. This measure is carried out by scanning electron microscopy and manually measured by software. Confirmation of these measures is p...
Source: Procedia Materials Science - July 3, 2015 Category: Materials Science Source Type: research
Evaluation of Corrosion Resistance of Aluminum-based Alloys in Bioethanol Produced in Misiones
Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): Gustavo Raúl Kramer , Claudia Marcela Mendez , Alicia Esther Ares Nowadays, biofuels represent a large part of renewable energies destined to substitute fossil fuels, and to reduce the negative impact on the environment. Bioethanol is obtained by alcoholic fermentation, and is used pure or mixed with other petroleum derivatives as fuel. Use, manipulation, storage and transport of these substances, at any scale, demand the implementation of materials, such as aluminum, that has excellent mechanical properties, as well as low density. Gener...
Source: Procedia Materials Science - July 3, 2015 Category: Materials Science Source Type: research
Electrochemical Tests in Stainless Steel Surgical Implants
Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): Alex Kociubczyk , Claudia Mendez , Ricardo Gregorutti , Alicia Ares In the present work the corrosion resistance of stainless steels was evaluated following the specifications of ASTM F-745 standards. The specimens were obtained by two methods, the conventional process of investment casting and countergravity low pressure casting. Cyclic polarization tests were performed according to ASTM F 2129, using a conventional three-electrode cell, with Pt as a counter electrode and saturated calomel as a reference electrode. The experiments were p...
Source: Procedia Materials Science - July 3, 2015 Category: Materials Science Source Type: research
Characterization of Fatigue Life of Ultrafine Grained NiTi Superelastic Wires Under Uniaxial Loading
Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): Sebastián Jaureguizahar , Hugo Soul , Mirco Chapetti , Alejandro Yawny The role of the stress induced martensitic transformation on the fatigue life of Ni-rich ultrafine grained NiTi superelastic wires has been investigated. Two types of experiments have been considered to elucidate the question. In the first class, the stress range was kept in between the forward and reverse plateaus levels, thus avoiding evident martensitic stress induced transformation. Strain controlled experiments were performed in wires in fully austenite, fully st...
Source: Procedia Materials Science - July 3, 2015 Category: Materials Science Source Type: research
