Yazar "Sismanoglu, S." seçeneğine göre listele

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    Removal of Basic Blue 3 from the aqueous solution with ternary polymer nanocomposite: Swelling, kinetics, isotherms and error function
    (Chemical Society of Pakistan, 2017) Karakus, S.; Sismanoglu, S.; Akdut, G.; Ürk, O.; Tan, E.; Sismanoglu, T.; Kilislioglu, A.
    Ternary nanocomposite (Gum Arabic / PVA / Alginate) adsorbent was prepared by a cost effective method for dyes removal, because gum arabic and alginate are the cheapest materials. Gum arabic is a natural gum. Alginate that has long carboxylate functional group is a biosorbent. In this study, Gum arabic/PVA/Alginate was prepared that this absorbent has the high specific surface area. BET was measured as 12.93 m2/g. Swelling of adsorbent was determined at different pH. For the maximum swelling ratio was obtained at pH 6.88?7, adsorption experiments were studied by the batch method. Freundlich, BET and Langmuir isotherm methods were applied at different concentrations and constant temperature 25°C. Finally, the adsorption capacity of the nanocomposite was calculated as 200 mgg-1. The different adsorption kinetic models were studied at temperature from 25°C to 45°C and different concentrations. The thermodynamic parameters as ?H°, ?G°, and ?S° were calculated. © 2017, Chemical Society of Pakistan. All rights reserved.
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    The synthesis and mechanical characterisation of laminated hybrid-epoxy matrix composites
    (Taylor & Francis Ltd, 2017) Sismanoglu, S.; Gungor, A.; Aslan, B.; Sen, D.
    High-performance and lightweight laminated hybrid composites were fabricated by using epoxy-impregnated carbon, Kevlar and hybrid fabrics. Carbon-Kevlar, carbon-hybrid, carbon-Kevlar-hybrid, and Kevlar-hybrid fabric epoxy matrix composites with 12 layers were synthesised using vacuum bag method. Tensile and three-point bending tests were used to determine the modulus of elasticity, % elongation, tensile strength, bending moment and bending strength of hybrid composites. The highest tensile strength, bending strength and bending moment were observed from carbon-Kevlar-epoxy matrix composite, while the lowest values were observed from the carbon-hybrid-epoxy matrix composite.
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    The Synthesis and Mechanical Characterization of Laminated Hybrid-Epoxy Matrix Composites
    (Agro Arge Danismanlik San Ve Tic As, 2016) Sismanoglu, S.; Gungor, A.; Asian, B.; Sen, D.
    High performance and light weight laminated hybrid composites were fabricated by using epoxy impregnated carbon, kevlar and hybrid fabrics. Carbon-kevlar, carbon-kevlar-hybrid, kevlar-hybrid and hybrid-carbon fabric epoxy matrix composites with 12 layers were synthesized by using vacuum bag method at 170 degrees C temperature for 150 minutes. Composite materials were compared in terms of their flexibility and strength properties by using tensile and bending tests. Elasticity modulus, % elongation, tensile tension, fracture tension, bending moment, bending strength were determined according to the tests results. The highest tensile strength, bending strength and bending moment were observed in carbon-kevlar-epoxy matrix composite, while the lowest values were obtained from carbon-hybrid-epoxy matrix composite.
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    Wear performance investigation of AlSi8Cu3Fe aluminum alloy related to aging parameters
    (MIM RESEARCH GROUP, 2019) Baser, E.; Incesu, A.; Sismanoglu, S.; Gungor, A.
    Aluminum silicon alloys are the most preferred alloys for industrial applications due to their ease of production and lightness. It is important to improve the mechanical properties of these materials in order to increase their usage. Wear properties are one of these mechanical properties that can be improved. In this present investigation, 3 different artificial aging durations; 2hrs, 4 hrs, 8 hrs aging at 200 ?C were applied after solution heat treatment for 4 hrs. at 540 ?C to the AlSi8Cu3Fe alloy. Microstructural analysis, mechanical tests were applied to understand the effect of aging parameters on wear performance and also hardness values of AlSi8Cu3Fe alloy. According to the results obtained from tests and analyzes, the highest wear resistance was reached on the 4 hrs. aged sample. © 2019 MIM Research Group. All rights reserved.