Showing papers in "Procedia Materials Science in 2014"

TL;DR: Functionally graded composite materials (FGCMs) are inhomogeneous materials, consisting of two (or more) different materials, engineered to have a continuously varying spatial composition profile as mentioned in this paper.

TL;DR: In this paper, a review on the mechanical and tribological properties of stir cast aluminum matrix composites containing single and multiple reinforcement is presented, which shows an increase in its tensile and yield strength.

TL;DR: In this paper, an attempt has been made to synthesize metal matrix composite using 6061Al as matrix material reinforced with ceramic Al 2 O 3 particulates using liquid metallurgy route in particular stir casting technique.

TL;DR: In this article, a study was undertaken to extract chitin and chitosan by chemical method, and several treatments with acid and alkali were taken into consideration to determine effective concentration for yielding optimum output.

TL;DR: In this article, the importance of creating stable, compact and continuous oxide layers on the surface of Ti materials has been strongly effective to combat corrosion in aggressive body fluid, and the traditional and advanced surface modification techniques that are used to increase the bioactivity of the Ti surfaces and in turn to improve the corrosion behaviour have also been discussed at length.

TL;DR: The main objective of the green manufacturing is to save the environment and to reduce the cost of the product as mentioned in this paper, the authors of the paper also highlight the use of green manufacturing to form a sustainable product and to reuse the product, shorter life cycle.

TL;DR: A wide range of research has been done on the processing methods and material properties of Al-Al 2 O 3 nano-composites in which agglomeration of the reinforcing particles causes grain growth resulting changes in the microstructure as mentioned in this paper.

TL;DR: In this article, a mixture of biodegradable poly(lactic acid) (PLA) and polycaprolactone (PCL) was used to investigate the effect of PCL content on glass transition temperature, melting temperature and degree of crystallinity of PLA/PCL blends.

TL;DR: In this article, the effect of the built-up orientation on the mechanical properties and total cost of the FDM parts was investigated, and it was concluded from the experimental analysis that built orientation has significant affect on the tensile, flexural and total costs of the parts.

TL;DR: In this paper, the kinds of metal foam used in PCMs and the efficient thermal conductivity and convection heat transfer of the composite PCMs are reviewed, and the research methods used in the investigation of conductive, convective and phase change heat transfer process in composite PCM are also reviewed.

TL;DR: Carbon Nanotubes (CNTs) as mentioned in this paper are the allotropes of carbon which belong to the fullerene structural family and are cylindrical structures with at least one end closed with a buckyball structure hemisphere.

TL;DR: The probability and appropriate processing parameters of friction welding method of commercially pure titanium to a 304L stainless steel with an electroplated nickel interlayer have been investigated in this article, and the microstructure of the welded joints has been observed by optical microscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy, and the main factors affecting friction welding process were analyzed.

TL;DR: In this article, X-ray peak profile analysis by variance method is employed to evaluate the micro structural parameters of nanostructured hydroxyapatite-based nanoparticles, namely, crystallite size, mean squared lattice strain, root mean-squared-latice strain and dislocation density.

TL;DR: In this article, the authors have modified the epoxy matrix by Al2O3, SiO2 and TiO2 micro particles in glass fiber/epoxy composite to improve the mechanical properties.

TL;DR: In this article, a multi criteria decision making model, analytical hierarchy process is applied to analyze the decision making process in the manufacturing system and the results are that the crankshafts have passed the testing, validation and approval by the customer to produce any variant in the company.

TL;DR: In this article, the fabrication and investigation of fiber composites and compares it with GFRP and CFRP used separately, and the results show that the CFRP composite has better properties than the gFRP in tensile and flexural.

TL;DR: In this article, the authors investigated the impact of three different process parameters, namely, water pressure, nozzle transverse speed and abrasive flow rate on the top kerf width and taper angle.

TL;DR: In this article, the authors investigated the mode I crack propagation in reinforced concrete using Digital Image Correlation (DIC), which is a robust, noncontact and precise tool for fracture measurements.

TL;DR: In this paper, a composite is developed by adding silicon carbide in Aluminum metal by mass ratio 2.5, 5, 7.5% and 10% and the composite is prepared by stir casting technique.

TL;DR: In this paper, a 2D wavelet scalogram has been used for the detection and occurrence of outer race faults of various sizes in ball bearings of mechanical systems using motor current signatures of induction motor.

TL;DR: In this paper, an increase in lubricant viscosity due to presence of TiO 2 nanoparticles is modelled using a modified Krieger-Dougherty viscoity model.

TL;DR: In this paper, the authors highlight and discuss key scientific questions arising from the current state of knowledge and presentations given at the SumGLASS 2013 summer school and discuss how chemical, hydraulic, thermal, and mechanical constraints related to the design of the multi-barrier system in the geological disposal facility affect the rate-limiting mechanisms.

TL;DR: In this paper, nanocrystalline pure TiO2 and 5 mol% silver doped TiO 2 (Ag-TiO2) powders were prepared by sol-gel route.

TL;DR: In this paper, the tensile and flexural tests were performed at three different speeds to study the mechanical behaviour of the composites and it was found that the mechanical property increases up to certain filler % age and then properties gradually decrease.

TL;DR: In this article, the influence of different machining parameters such as cutting speed (Vc), feed (f), and depth of cut (t) on different performance measures during dry turning of AISI 304 austenitic stainless steel was investigated.

TL;DR: In this article, structural, low carbon steel, for pressure purposes, grade 20 - St.20 (GOST 1050-88) was investigated, and the results indicated the simultaneous action of the hydrogenenhanced decohesion (HEDE) and hydrogen enhanced localized plasticity (HELP) mechanisms of HE, depending on the local concentration of hydrogen in investigated steel.

TL;DR: In this paper, a continuous drive friction welding of aluminium to copper for defense applications was studied and the microstructural characterization of the weld interface was analyzed by optical and scanning electron microscopy and X-ray diffraction analysis technique.

TL;DR: In this paper, a parametric analysis of wire EDM parameters was performed by Taguchi method on surface roughness (SR) and material removal rate (MRR), simultaneously optimized by hybrid genetic algorithm with the use of developed linear regression models.

TL;DR: In this article, an 11wt% B 4 C particulate reinforced 6061 Al matrix composites were produced by conventional melt stirring method, processing of composite is carried out at a temperature of 750°C involving two stage additions.

TL;DR: In this article, the manufacturing process and industrial applications of Alantum metal foams having a complete open-pore structure are introduced, and a wide spectrum of foam products based on several distinguished properties of metal foam is described.