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
Yasser Rihan analyzes the heat transfer during the consolidation of metal matrix composites. They possess high strength-to-weight ratios and can withstand high temperatures, which makes them ideal for aerospace and other elevated temperature applications such as automotive engine parts, tools and dies. A mathematical model was developed to predict the heat transfer inside the preform of a metal matrix composite by changing the temperature at the surface. The effect of the material, pressure and the contact heat transfer coefficient on heat transfer was studied. This analysis provides a tool for predictions of preheat times for composite consolidation by the hot isostatic pressing process.
Akshay Atul Mali and his co-authors Apurbba Kumar Sharma and Inderdeep Singh developed the microwave processing of materials of natural fiber and synthetic fiber which are reinforced polymer matrix composites. In the present experimental work, natural fiber (grewia optiva) reinforced polypropylene composites (GOF/PP) and synthetic fiber (glass) reinforced polypropylene (GF/PP) composites have been cured with the help of microwave hybrid heating (MHH). The trials were conducted in atmospheric conditions at fixed frequency 2.45 GHz and a power of 900 W. Microwave wattage and exposure time were optimized for each type of composite and study shows that GOF/PP and GF/PP composites can be successfully cured with microwave heating. The obtained samples show a perfect bonding between the fiber and the matrix. The result shows that the tensile strength of composite with GOF as reinforcement is 79.93% than that of the GF reinforced PP composites.
Animesh Talapatra et.al made an analysis to find out the cupping index of different sheet metals in different thickness using ERICHSEN cupping testing machine (Model ET-20, least count of 0.01 mm) in metal forming operations (stretching). In the ERICHSEN cupping test, the sheet metal test piece is clamped under a pressure of 1000 ± 100 kgf between a blank holder and a die. This test is a type of stamping test, which uses a polished steel ball or a spherical punch of a standard size mounted on a plunger to penetrate into the specimen with a constant force until the specimen produces first crack. The measure of the length of penetration in mm, indicates the ERICHSEN Number which gives a measure of the ductility of the sheet in the plane of drawing under biaxial stress conditions. The ERICHSEN no. is the penetration of the die given in millimeters to the nearest decimal point, up to the point at which cracks occur (end point).Finally NDT method was used to find out formability characteristics of different sheet metals.
Radha Raman Mishra and his co-author A. K. Jha present the scenario for the demand of advanced materials, which have high strength and comparatively low weight. Carbon fiber composites are satisfying the requirements but high cost of manufactured products restricts their use only for highly precise applications. In this present study, a light weight foamed carbon fiber composite was developed by a hand lay-up layer by layer processing method. Wax, thermocol and camphor balls were used as foaming agent which gets evaporated leaving a porous structure after sintering. The investigations were made to evaluate mechanical properties of developed foamed composites. Finally they observed that, the camphor foamed composite has better hardness and wax foamed composite has more energy storage capacity at moderate impacts.
The review paper by Govind Umarji et.al furnishes state-of-the-art account of photopatternable thick film technology (with historical landmarks) and mainly focuses on materials, processing and formulation attributes of silver based conductor paste. In the subject comprehension, the authors have exclusively referred to their own R & D efforts in photopatternable thick film technology by investigating the effect of variation in weight percentage of glass on the overall performance of aqueous developable photoimageable silver composition which was previously optimized with respect to solid content of the polymer system. A glass weight % of ~3 to 5 is found to be ideal for the present photoimageable thick film formulation which beneficially offers pin-hole free microstructure, good adhesion due to vitreous bonding with the substrate, desired low sheet resistance and tolerable shrinkage in line/space pattern after firing.