Materials Literature
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In this study, the corrosion behavior of Mg-Zn-Se and Mg-Zn-Cu alloys was investigated to evaluate their corrosion behavior related to use as implantable biomaterials. The corrosion behavior of these alloys and a commercially available Mg-Zn alloy were examined using static solution electrochemical testing, dynamic so…
In this paper n-type polycrystalline silicon thin films deposited on ITO coated polyethylene terephthalate (PET) substrate by screen printing technique have been studied. The phosphoric acid with different concentration used as doping source to create n-type silicon powder which is dissolved in solvent to obtain n- ty…
The studies on the combustion and flame retardant mechanisms are most important for the developments of the flame retardant materials. In this paper, the author would like to introduce the basics and the recent trends of studies in flame retardant mechanisms to develop the flame retardant polymeric materials.
The present work has been conducted in order to determine the influence of heat treatment on the wear and corrosion behaviours of a gray cast iron substrate coated with a Ni base coating deposited by HVOF thermal spray. The wear resistance of the coatings was obtained using a reciprocating wear tester by rubbing a 10…
macromolecular solutions under Poiseuille flow in microchannels are investigated using the dissipative particle dynamics (DPD) approach. The results show that the macromolecular solutions are non-Newtonian fluids which can be described by power-law fluids, and the power-law index decreases with the increase of the mac…
Until recently the magnetomechanical behavior has been rather poorly understood with contradictory results and interpretations from different investigators in the study of stress monitoring by magnetic method. Based on the domain motion and field-induced magnetization process of magnetic material, the stress-induced m…
Ngwo White clay from Udi in Enugu State of Nigeria was analyzed mineralogically and physic–chemically. The results of the chemical analysis are as follows: SiO2:53.2%, Al203:5.906%, K2O:0.121%, Na2O:1.4175%, Fe2O3:0.444%, CaO: 0.0061%, PdO: 0.0049%. The results of the physical analysis are as follows: 8%moisture, 1%As…
A method for analyzing the surface of rounded mineral crystals has been developed. The morphology of Ural-Brazilian type diamonds from different deposits of Yakutia, Urals and Brazil has been studied. Signs of curvilinear forms of diamond dissolution, including forms of reversible dissolution and irreversible etching,…
Composite structures built of paraaramid fabric and shear thickening fluid (STF) are developed in the light of their po� tential application in smart body armour. The study reports on the rheological behaviour of nanosized silica suspensions. Depending on the oligomer chemical structure and molecular weight, we observ…
The evolution of the microstructure of hexanitrohexaazaisowurtzitane (CL-20) after a thermal stimulus plays a key role in the performance of CL-20. In the current work, microstructural variations of CL-20 caused by thermal treatment were investigated by X-ray diffraction, in situ variable-temperature optical microscop…
Polyvinyl alcohol (PVA) is a typical refractory organic pollutant with low biodegradability and high molecular weight.This paper presents data on the radiolysis of PVA in aqueous solutions by using ionizing radiation.Response surface methodology with Box-Benhken design of experiment was applied to analyze the interact…
The novel phenolic Mannich bases 2,2'-(2-hydroxy-4,5- dimethylbenzylazanediyl)diethanol (1) and 2-((2-(4-(2-hydroxy-4,5- dimethylbenzyl)piperazin-1-yl)ethylamino)methyl)-4,5-dimethylphenol (2) have been synthesized in good yield by using a microwave-induced technique from 3,4-dimethylphenol and corresponding amines in…
La caracterizacion de la propagacion de grietas se basa en la teoria clasica de la mecanica de la fractura elastica lineal, la cual ignora cualquier efecto tridimensional en la propagacion de la grieta. Factores tales como el espesor de la probeta y la curvatura del frente de la grieta no son considerados. El fenomeno…
David Cowan is a Hydraulics Engineer with ITT Goulds Pumps responsible for applied research and hydraulic design of engineered API process pumps.His responsibilities include the development and analysis of new and existing hydraulic products through traditional and computational methods.He is also jointly responsible…
The objectives of this research were to analyze the physical and mechanical properties of Oriented Strand Board (OSB) prepared from steam treated betung bamboo (Dendrocalamus asper) strands under various adhesive combinations. The strands were steamed at 126 °C for 1 h with the pressure of 1.4 kg cm-2 prior to be blen…
Investigations were carried out to study the effects of heat treatment on the mechanical properties of medium carbon steel. Samples of medium carbon steel were examined after heating at 9000C and soaked for 60 minutes in a muffle furnace and quenched in oil. The mechanical behavior of the samples was investigated usin…
In the process of hot dip galvanizing of Si and Mn added high tensile strength sheet steels, the selective surface oxidation of Si and Mn causes coating defects. One of the promising methods overcoming this problem is oxidation-reduction process. The steel surface exposed to an oxidizing atmosphere will react primaril…
Property prediction models based on the group-contribution+ (GC+) approach have been developed to provide reliable predictions of pure component properties together with uncertainties of predicted property values which is much needed information in performing chemical product and process design and analysis of sustain…
In this work ,The thermal comfort properties of polyester and bamboo blended woven fabrics have been studied in relation to %of component fibers in blends ,pick density and weave .The objective was to determine the influence of fabric factors such as the constituent fibers ,pick density and weave characteristics on th…
It has become increasingly clear that the cellular microenvironment, in particular the extracellular matrix, plays an important role in regulating cell function. However, the extracellular matrix is extraordinarily complex in both its makeup and its physical properties. Therefore, there is a need to develop model syst…