Microstructural and Electrical Properties of Barium Strontium Titanate and Nickel Zinc Ferrite Composites
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): Rutvi J. Pandya, U.S. Joshi, O.F. Caltun Structural and electrical properties of oxide composite of two ferroic ternary Ba0.6Sr0.4TiO3 and Ni0.5Zn0.5Fe2O4 were investigated. Powder x-ray diffraction studies show that the end products, BST possess cubic perovskite structure and NZF possess cubic spinel structure. A very systematic phase transition between these two phases has been achieved for intermediate doping ranges. Surface morphology revealed a uniform grain distribution with very low porosity for entire composite series. Real and...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Synthesis and Characterization of Nano-sized Al2O3 Particle Reinforced ZA-27 Metal Matrix Composites
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): N. Shivakumar, V. Vasu, N. Narasaiah, Subodh kumar Metal matrix composite (MMC) focuses primarily on improving specific strength, high temperature and wear resistance applications. In this article, the present study is concentrate on the synthesis and characterization of ZA-27 metal matrix composite (MMC) reinforced with nano-sized aluminium oxide (Al2O3) particle in different weight percentage of 1, 3 and 5%. A stir casting followed by squeeze casting technique is used for the fabrication of these composite materials. Wear volume lo...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Fabrication and Mechanical Properties of AlSi12 Nano Particulate Composite
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): K. Srinivasulu Reddy, D. Sreedhar, P. Nagesh, G. Janardhana Raju Nano-particulate composite AlSi12 with Single, Double and Multi walled Carbon Nanotubes (SWCNTs, DWCNTs & MWCNTs) as reinforcement at 0.5% by weight are fabricated using powder metallurgy process. Powder Metallurgy test specimens were prepared according to ASTM B-925 standards and specimens were tested for Tensile strength and Hardness. It is observed that AlSi12 reinforced with 0.5 weight percentage of SWCNTs, DWCNTs & MWCNTs has shown improvement in te...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Efficient Nanocomposite formation of Acyrlo Nitrile Rubber by incorporation of Graphite and Graphene layers: Reduction in Friction and Wear Rate
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): Neha Agrawal, A.S. Parihar, J.P. Singh, T.H. Goswami, D.N. Tripathi Graphite (G) and its nano form Graphene (nG) are one of the most admirable fillers for incorporating multifunctional attributes in polymer/elastomer matrix. Use of such fillers in polymers/elastomers has enhanced their several properties and applicabilities. Acrylo Nitrile Butadiene Rubber (NBR) is a workhorse of the several industrial applications especially for automotive rubber products and in hydraulic area. Enhanced tribological properties of NBR are one of th...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Estimation of Modal Damping Ratio from Specific Shear Modulus for Monolithic Materials and Hybrid Cored Multilayer Composites
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): Sourabha Havaldar, Uday N. Chate Damping properties are of significant importance in determining the dynamic response of structures, and accurate prediction of them at the design stage, especially in the case of light-weight structures is very desirable. Unfortunately, damping parameters cannot be deduced deterministically from other structural properties and recourse is generally made to data from experiments conducted on completed structures of similar characteristics. Such data is scarce but valuable, both for direct use in design and...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Synthesis and Analysis of Ternary Oxide Nanomaterial for Electro-thermal Applications
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): D. Sreedhar, Y. Vinod Reddy, V. Vasudeva Rao Binary Semiconducting Oxides have quite stable properties. The quest for enhancing the properties of materials even further, leads us to evaluate Zinc-Tin-Oxide, which is a ternary semiconducting oxide material known for its unique properties. ZTO nanomaterial was synthesized using Solvo-Thermal method with different molar ratios of Zinc and Tin varying with 1:1, 3:7 and 7:3. Slovo-Thermal method is a very efficient method when compared to other methods to synthesize at low temperatures. In ...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
The Future of Civil Engineering with the Influence and Impact of Nanotechnology on Properties of Materials
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): N. Venkat Rao, M. Rajasekhar, K. Vijayalakshmi, M. Vamshykrishna It is true that nanotechnology has become one of the influential technologies in this century since it has been successful in fascinating all most all manifolds of technology, like that it has also embraced the field of Civil Engineering. More particularly the construction sector finds its advantage with nanotechnology, construction industry needs more material and energy resources. Among all the materials used in construction, concrete occupies nearly 70% of the materi...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Synthesis of N-S Doped Graphene for Hydrogen Storage
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): Sandeep Pal, Akriti Agrawal, S.K. Nippani, Gagan Anand Doping is a common and effective approach to tailor semiconductor properties. Theoretical studies predicted that doping graphene with nitrogen and sulphur can tailor its electronic properties and chemical reactivity. Hydrogen as an environment friendly fuel is a strong contender for fossil fuel based auto fuel. But the major stumbling block in realizing this is the risk involved in transporting hydrogen due to the risk of fire hazard owing to wider limits of in flammability. Henc...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Effect of Sintering Temperature on Zn0.94Cr0.03Fe0.03O Nanostructures
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): Prakash Chand, Anurag Gaur, Ashavani Kumar In present work, we report structural, morphological and optical properties of Zn0.94Cr0.03Fe0.03O nanostructures synthesized by hydrothermal method. The as prepared Zn0.94Cr0.03Fe0.03O samples were sintered in air at different temperatures (RT- 400 0C) to understand the effect of sintering temperature on the structural, morphological and optical properties of Zn0.94Cr0.03Fe0.03O nanostructures. The samples are characterized using X-ray diffraction (XRD), scanning electron microscope (SEM), ph...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Influence of Precursors on Morphology and Spectroscopic Properties of ZnO Nanoparticles
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): U. Srinivasa Rao, G. Srinivas, T. Prasada Rao ZnO Nanopowders are prepared with three different precursor's viz., NaOH, KOH and Na2CO3 using co-precipitation method. Further samples are characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), UV-Vis Optical absorption and Photoluminescence (PL) spectroscopy analyses. Morphology and optical properties of ZnO nanoparticles are investigated for the each precursor. XRD patterns indicate hexagonal phase unit cell structure. ZnO nanoparticles exhibit an absorption band a...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Transient MHD free Convection Flow and Heat Transfer of Nanofluid Past an Impulsively Started Vertical Porous Plate in the Presence of Viscous Dissipation
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): V. Rajesh, M.P. Mallesh, O. Anwar Bég A mathematical model is developed for the nanofluid flow and heat transfer due to the impulsive motion of an infinite vertical porous plate in its own plane in the presence of a magnetic field and viscous dissipation. The governing unsteady, coupled, non-linear partial differential equations are transformed into a system of nonlinear ordinary differential equations, with appropriate boundary conditions. A robust Galerkin finite element numerical solution is developed. A range of nanofluids contain...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Parametric Optimization in Machining of Nimonic-263 Alloy using RSM and Particle Swarm Optimization
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): M. Sreenivasa Rao, N. Venkaiah Machining of nickel based alloys is one of the challenging tasks in the recent past. Wire Electrical Discharge Machine (WEDM) is an advanced machine tool, extensively used to machine hard to cut materials like nickel, titanium and other super alloys. Selection of WEDM process parameters to yield the desired level of performance measures like Material removal Rate (MRR) and Surface Roughness (SR) is crucial from quality and economic view points. In the present work an attempt has been made to investigate the...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Capture Efficiency of Magnetic Nanoparticles in a Tube under Magnetic Field
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): Shashi Sharma, Anurag Gaur, Uaday Singh, V.K. Katiyar In this work, we have performed the computational simulation to calculate the capture efficiency of magnetic nanoparticles flowing within a fluid in a tube under magnetic field. The capture efficiency is calculated by considering the dominant magnetization and fluidic drag forces acting on the magnetic particles. Further, experiments are also performed to calculate the capture efficiency of magnetic particles experimentally in a tube of diameter 6mm under magnetic field. Iron oxid...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
Investigation of Trapezoidal-Cut Twisted Tape Insert in a Double Pipe U-Tube Heat Exchanger using Al2O3/Water Nanofluid
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): P.V. Durga Prasad, A.V.S.S.K.S. Gupta, K. Deepak An attempt is made to enhance the rate of heat transfer in heat exchangers using Al2O3 nanofluid. In this work an experimental analysis on trapezoidal-cut twisted tape insert in a double pipe U-tube heat exchanger using Al2O3 water based nanofluid is presented. The heat transfer coefficients and the corresponding friction factors required for performance analysis are determined taking into account the typical operating conditions of the heat exchangers in turbulent flow regimes with part...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
A Model for Magnetic Nanoparticles Transport in a Channel for Targeted Drug Delivery
Publication date: 2015 Source:Procedia Materials Science, Volume 10 Author(s): Shashi Sharma, Ravi Kumar, Anurag Gaur Magnetic Targeted Drug Delivery System (MTDDS), based upon magnetic particles under the action of an external magnetic field, is an effective technique for drug therapy. The aim of the drug targeting is to decrease the amount of drug delivered to healthy tissue, while maintaining the therapeutic action at the desired site. In this work, a mathematical model is presented for predicting magnetic nanoparticles transport in a channel for targeted drug delivery. The fluid flow composed of magnetic nano...
Source: Procedia Materials Science - August 8, 2015 Category: Materials Science Source Type: research
