Correlation between the Surface Energetics of Reinforcement and Mechanical Properties of Carbon/Carbon Composites

Surface energetics of reinforcement is one of the most important properties in case of adhesion of reinforcement in composites . For this study, PAN fibres were stabilized isothermally with three different timings (viz. 0, 1, 2 h) and eventually prepared fibres having different surface energetics were evaluated by DCA 322. Composites were made by using these stabilized fibres (designated as OP, 1 P, and 2P) with coal tar pitch as matrix precursor using match mould die technique. Green composites were carbonized upto 1000°C, then impregnated and heat treated to 1500, 2000 and 2600°C. Green composites as well as heat treated composites were studied for their mechanical properties . Microstructure as well as interfacial studies were carried out using optical microscope. Optical microscopic examination of composite samples show that Ill treated fibres offer much better adhesion with matrix precursor and the matrix also exhibits an obvious increase in the anisotropic domain size in case of 2P composites . Density of stabilized fibres and also of green composites has been found to increase with stabilization time. Flexural strength of green composites prepared with 0 and 2h treated fibres decreases ( 123 MPa to 60 MPa). However, as a result of better bonding between fibre and matrix , in case of IP composites , strength is always high except in green stage . An attempt has been made to correlate the surface energetics of fibre with mechanical properties as well as matrix microstructure of carbon /carbon composites

Synthesis and Characterization of MnFe2O4 / Graphene / Epoxy Nanocomposites

Ternary MnFe2O4/graphene/epoxy nanocomposites have been synthesized using chemical co-precipitation and solid state methods having different concentration of graphene. The obtained ternary nanocomposites and pure MnFe2O4 have been characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) and impedance spectroscopy to obtain the structural, morphological and dielectric properties. The crystallite size of MnFe2O4 has been calculated using Scherer formula, which was found to be 1.3 nm. The agglomeration of particles with surface roughness was obtained by SEM analysis. The device has been fabricated using silver coating in terms of capacitor to characterize dielectric properties. It has also been observed from dielectric analysis as concentration of graphene increases from 1% to 10%, the value of gradient of dielectric decreases and also loss tangent decreases on increasing concentration of graphene

Comparative study of physicochemical properties of CoFe2O4/MWCNT nanocomposites

CoFe2O4/MWCNT (CFO/MWCNT) nanocomposites have been synthesized using Co-precipitation and solid state method. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and impedance spectroscopy have been used to determine structural, morphological and dielectric properties of synthesized nanocomposites. The particle size was found to be 3 nm, 3.3 nm and 4 nm for CFO, C-CFO/MWCNT and G-CFO/MWCNT, respectively, using Scherrer formula. Aggregation of nanoparticles has been acquired by SEM analysis. From impedance spectroscopy, it has been observed that the dielectric constant decreases with increase in frequency and dielectric constant and loss both are more for C-CFO/MWCNT nanocomposites than that are for G-CFO/MWCNT nanocomposites

Synthesis and Characterization of MnFe2O4 / Graphene / Epoxy Nanocomposites

75-77Ternary MnFe2O4/graphene/epoxy nanocomposites have been synthesized using chemical co-precipitation and solid state methods having different concentration of graphene. The obtained ternary nanocomposites and pure MnFe2O4 have been characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) and impedance spectroscopy to obtain the structural, morphological and dielectric properties. The crystallite size of MnFe2O4 has been calculated using Scherer formula, which was found to be 1.3 nm. The agglomeration of particles with surface roughness was obtained by SEM analysis. The device has been fabricated using silver coating in terms of capacitor to characterize dielectric properties. It has also been observed from dielectric analysis as concentration of graphene increases from 1% to 10%, the value of gradient of dielectric decreases and also loss tangent decreases on increasing concentration of graphene

Comparative study of physicochemical properties of CoFe2O4/MWCNT nanocomposites

93-95CoFe2O4/MWCNT (CFO/MWCNT) nanocomposites have been synthesized using Co-precipitation and solid state method. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and impedance spectroscopy have been used to determine structural, morphological and dielectric properties of synthesized nanocomposites. The particle size was found to be 3 nm, 3.3 nm and 4 nm for CFO, C-CFO/MWCNT and G-CFO/MWCNT, respectively, using Scherrer formula. Aggregation of nanoparticles has been acquired by SEM analysis. From impedance spectroscopy, it has been observed that the dielectric constant decreases with increase in frequency and dielectric constant and loss both are more for C-CFO/MWCNT nanocomposites than that are for G-CFO/MWCNT nanocomposites

A Comprehensive Review on Plant Disease Vectors and Their Management

Plant disease vectors play a critical role in agricultural productivity and ecosystem health. This comprehensive review explores the intricate nature of these vectors and their role in transmitting major plant diseases, including those of viral, bacterial, and fungal origins. It delves into the mechanisms underlying disease transmission, and the significant factors that influence vector efficiency. The socioeconomic and ecological impacts of these vectors are highlighted, with emphasis on crop yield reductions and ecological imbalances. Traditional and emerging vector management methods, such as chemical control, biological control, cultural practices, genetic engineering, and precision agriculture are examined. The review also addresses the challenges inherent to vector management, including resistance development, non-target effects, environmental factors, and socioeconomic barriers. Future perspectives are offered, emphasizing the need for sustainable strategies, exploitation of emerging technologies, enhanced surveillance, community involvement, policy support, and preparation for forthcoming challenges due to climate change, land-use alterations, and global trade. This extensive review presents a critical resource for stakeholders in plant disease vector management, guiding future research directions and policy-making

Proceedings of the International Conference on Frontiers in Desalination, Energy, Environment and Material Sciences for Sustainable Development

This proceeding contains articles on the various ideas of the academic community presented at the International Conference on Frontiers in Desalination, Energy, Environment and Material Sciences for Sustainable Development (FEEMSSD-2023) & Annual Congress of InDA (InDACON-2023) jointly organized by the Madan Mohan Malaviya University of Technology Gorakhpur, KIPM-College of Engineering and Technology Gida Gorakhpur, and Indian Desalination Association, India on 16th-17th March 2023.  FEEMSSD-2023 & InDACON-2023 focuses on addressing issues and concerns related to sustainability in all domains of Energy, Environment, Desalination, and Material Science and attempts to present the research and innovative outputs in a global platform. The conference aims to bring together leading academicians, researchers, technocrats, practitioners, and students to exchange and share their experiences and research outputs in Energy, Environment, Desalination, and Material Science.  Conference Title: International Conference on Frontiers in Desalination, Energy, Environment and Material Sciences for Sustainable Development & Annual Congress of InDAConference Acronyms: FEEMSSD-2023 & InDACON-2023Conference Date: 16th-17th March 2023Conference Location: Madan Mohan Malaviya University of Technology, GorakhpurConference Organizers: Madan Mohan Malaviya University of Technology Gorakhpur, KIPM-College of Engineering and Technology Gida Gorakhpur, and Indian Desalination Association, Indi