Optimization of Adsorption Parameters for Lead (II) Removal from Wastewater using Box-Behnken Design
Optimization of Al 6063 Button Head Rivet FEM Analysis Subjected to CRYO ECAP and RT ECAP
Effect of (SiC+Gr) Addition on the Corrosion Behavior of Powder Metallurgy Copper MMC
Assessment of Reuse Potential of Low-Grade Iron Ore Fines through Beneficiation Routes
Characterization of Copper MMC Reinforced with SiC and Graphite in Equal Proportion Made by the Powder Metallurgy Route
Evaluation and Comparison of Turning Process Performance during Machining of D2 Steel Material under Two Sustainable Machining Techniques
An Investigation on Recent Trends in Metamaterial Types and its Applications
A Review on Plasma Ion Nitriding (PIN) Process
A Review on Friction and Wear Behaviors of Brake’s Friction Materials
Comparative Parabolic Rate Constant and Coating Properties of Nickel, Cobalt, Iron and Metal Oxide Based Coating: A Review
Electro-Chemical Discharge Machining- A review and Case study
Comparison Of Composite Proton Conducting Polymer Gel Electrolytes Containing Weak Aromatic Acids
Enhancement in Electrical Properties of PEO Based Nano-Composite Gel Electrolytes
Electrical Properties of Nanocomposite Polymer Gels based on PMMA-DMA/DMC-LiCLO2 -SiO2
Effect of Donor Number of Plasticizers on Conductivity of Polymer Electrolytes Containing NH4F
PMMA Based Polymer Gel Electrolyte Containing LiCF3SO3
Metal Matrix Composites (MMC) offer significantly enhanced properties like higher strength, stiffness and weight savings in comparison to conventional monolithic materials. Their superior properties have attracted several industries such as automotive, aerospace, and defence for their wide range of products. However, the widespread application of Metal Matrix Composites is still a challenge for industries. The hard and abrasive nature of the reinforcement particles are responsible for rapid tool wear and high machining costs. Fracture and debonding of the abrasive reinforcement particles are the considerable damage modes that directly influence the tool’s performance. So, it is important to choose a highly effective way to machine Metal Matrix Composites because, this will help to save both money and time. In this paper, an attempt has been made to conduct the experimental investigation on machining of MMC by comparing the parameters with traditional (Lathe) & nontraditional machining process EDM (EDM-Electrical Discharge Machining). The main focus is to find out the best suitable machining process for Al/SiCp MMCs (Maximum material Condition) in order to achieve more efficient Material Removal Rate (MRR) coupled with reduction in Tool Wear Rate (TWR) and improved surface quality.
To study the preparation and characterization of the sol-gel SiO2 nanoparticles using AFM (Atomic Force Microscope) and FT-IR (Fourier Transform Infrared Spectroscopy) are the best techniques to illustrate the purity, the presence of Si-O-Si bonds which are free from the organic matter, morphology and surface roughness of the silica coatings on glass and ceramic materials. The study carries the simple one-step preparation method and is well characterized using these two techniques, confirms the fine nanopowders which can be applied for the superhydrophobic surfaces to resist the contact of the water droplets on the coatings as well as exhibit the excellent hardness on different surfaces such as glass and ceramics.
In case of hybrid composites, the reinforcements either float or sink in the metal matrix due to density mismatch between the combined reinforcement and metal matrix which resulted into clustering and agglomeration of reinforcement particles into metal matrix. To avoid this clustering and non-uniform distribution of reinforcement particles in the matrix, a novel approach was used to manufacture hybrid composites. In this research work, silicon nitride and graphite ceramic powder were separately milled before composite fabrication. This ball milled powder was further used in the manufacturing of hybrid composites by stir casting process in protective inert atmosphere. The ball milled Si3 N4 /Gr ceramic powder were varied from 0 to 12 % in the matrix in a step of 3 and effect of varying reinforcement on the microstructures and physical properties were investigated. The microstructures of the manufactured hybrid composites were examined using optical microscope and the physical properties investigated include density and porosity. Ball milling results showed a more homogeneous microstructure with rough morphology of combined powder after 100 hours of ball milling by the scanning electron micrographs and the final density of ball milled powder after 100 hours was 2.81g/cm3 . The result of hybrid composites showed that with the addition of ball milled Si3N4 /Gr the density increased by 10.33% with an increase in porosity from 0.37 % to 1.64% as the weight % of ball milled Si3N4 /Gr, reinforcement particles increased from 0 to 12%. The optical microstructure revealed a reasonably uniform distribution of reinforcement particles into the metal matrix.
Bones fracture mainly due to an accident or by diseases, when human starts to do work and activity. It is the essential part of orthopaedic, truamatology and bone biopsy. The problem of bone fracture in medicine due to an accident, aging or diseases has existed since humans started to do work and activity. Therefore the process of bone drilling is an essential part of internal immobilization in orthopaedic and trauma surgery. The main concern in bone cutting is the mechanical and thermal damage to the bone tissue induced by high-speed power tools. Recent technological improvements are concerned with the efforts to decrease the force required by the surgeon when cutting the bone as well as to increase the surgery speed. The generated heat by bone drilling process is dissipated by blood flow and tissue fluids and also partially carried away by the chips. However, some heat may be conducted into the work piece (bone) by thermal conductivity. Increasing the temperature in drilling zone results in essence change of bone alkaline phosphatises. This successively causes thermal and cellular necrosis, which subsequently provides osseous necrosis and drop in mechanical strength of the drilling zone. All these factors have forced the researchers to do wide investigations on bone drilling process and the way in which machining parameters influence the level of temperature elevation in drilling zone. Subsequently, this review includes all relevant investigations by means of experimental methods used and methodology, results and conclusion by various researches were also compared.
The fluid suspensions of nano materials have shown various interesting properties and their distinctive features offer unprecedented potential for many applications in industry. This paper summarizes the recent progress on the study of nano-fluids such as the preparation methods with focus on two-step and one-step methods. The stability of nano-fluids and the techniques to enhance stability have also been discussed. The applications of nano fluids ranging over a wide spectrum from electronics, mechanical to industrial and environmental have been discussed in detail. Special emphasis has been given to the energy application to Nanofluids. The paper concludes by identifying the various opportunities for further research, study and development of nano-science and nano-technology to benefit the human civilization and universe.