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 (MMCs) enhance the mechanical and tribological properties according to the composition of the particulate reinforcement of silicon carbide/boron carbide and AA5052 aluminium alloy matrix. The MMC samples were fabricated by the stir casting method of liquid processing route. The same weight percentages (5 wt. %) and same particle size (63 µm) of both SiC and B4C particulates are used to develop two different MMC samples. The hardness and the corrosion test were investigated to estimate the enhanced properties of the fabricated composites. Macro-hardness test and the immersion corrosion test were carried out by using a Vickers hardness tester at an applied load of 5 kgf according to ASTM E92 and 3.5% NaCl solution according to ASTM G31 respectively. With the help of optical microscopy, the corroded surfaces were analysed. The results obtained from the investigation show that AA5052/B4C MMC gives more improved hardness and the AA5052/SiC MMC shows more corrosion rate compared to the other two samples.
Preparation of ZnO nanoparticles and surface modification ZnO with the carbon material graphite oxide, were synthesized. The synthesized materials were characterized by PXRD, FT-IR, and UV-visible analysis. The materials show better optical and structural properties, which are beneficial in the photocatalytic degradation studies. Under light, zinc oxide and graphite oxide were used to degrade the methyl orange solution. The prepared materials by sol-gel preparation showed enhanced catalytic activity in the photocatalytic activity of methyl orange. An optimal loading content of graphite oxide was investigated. The enhanced photocatalysis was studied in detail. The study provides a promising application for the photocatalytic degradation of organic pollutants in photocatalysis. In the present work, the authors included the new novel materials of ZnO. The ZnO is modified with the surface deposits of rGO. The combined materials of semiconductor materials show a better response to light for the degradation studies. The use of such a combination is a new study and the results reflect the modification of semiconductor materials in the p-block elements such as C, N, F, P and so on for the enhanced photocatalytic applications of semiconductor mediated materials, which are widely used in photocatalysis. The PXRD analysis of ZnO and rGO shows better crystallinity in the case of ZnO, whereas after the deposition of rGO, crystallinity is lost due to the overlap of the main base material semiconductors, which explains the new catalytic and recombination effects of the materials used.
Cu(II) complexes were prepared using p-dimethylaminobenzaldehyde, alpha-naphthylamine, and diphenylamine. Elemental analysis, measurements of conductivity and magnetic susceptibility, as well as spectroscopic (IR and UV) and thermal studies (e.g., TGA) were used to describe transition metal complexes. Various spectrum data are used to characterize all of the complexes. In addition, optical absorption is used to determine absorbance, absorption coefficient, refractive index, transmission, band gap, and permittivity. Visual constants were calculated by using UV-Vis spectroscopy. Magnetic, electronic spectral and TG studies suggest the geometry of all complexes. Optical studies suggest the behavior of these various complexes. Various properties of Cu(II) complexes have been estimated by different methods of calculation.
This paper presents the preparation of zinc oxide with titanium over the niobium oxide coated with graphene oxide and this new material has applications in the photocatalysis and energy storage of reduced graphene oxide layered zinc, titanium, and niobium oxide nanocomposite. The PXRD pattern confirms the unique physical and chemical characteristics of metal nanocomposites useful for catalysis. Recyclable nanocomposites are indeed helping a new era of research into future energy storage materials. To prove the important properties of such materials, researchers are always trying to find new ways to produce such polymer-based materials, but metal-based nanocomposites do show better and reusable materials and act as energy storage.
The present study investigates the performance of a new generation mineral with high alumina (Al2O3), very low thermal conductivity (K) and high density, which are necessary insulation properties, sandwiched to achieve effective insulation results, in a compound heating resistance furnace at 1600°C. Two heating elements SiC and MoSi2 are used for long hours with a number of pre-set programmable cycles of operations. Zirconium tiles, mullite tiles, zirconium modules are being used in this experiment. Air, a bad conductor of heat transfer, is also used in a gap of 20 mm between two different tiles to lessen heat transfer from working chamber towards outer ambience by conduction and radiation—combined modes of heat transfer during multiple programmable operations at preset working temperature of 1600°C to achieve desirable results—maximum thermal efficiency with least heat loss from outer surface and to achieve skin temperature as equal to ambience temperature. Also, hot face red bricks are used under the hearth by a new design in this experiment for optimum insulation performances. This study aimed to design a compact furnace that would occupy less space and reduced total weight with better insulation for working temperature 1600°C, when compared with conventional ceramic materials used as insulation material.