Browsing by Author "Vaidyanathan, Ranji"
Now showing items 1-20 of 42
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(A) Epoxy curing (B) Characterization of epoxy/SWNT nanocomposites & (C) MnO2 nanostructures for catalysis
Lageshetty, Sathish Kumar (2015-05)The main objective of this study is to prepare a better material, i.e. stronger, lighter, heat impact and gas permeable for aerospace application. In recent years, the development of filler/epoxy composites has shown large ... -
Additive manufacturing assisted casting methods for aluminum
Harrison, Jefferson (2022-12)Through the rise in additive manufacturing increased efforts are being made toutilize these processes in traditional manufacturing. This allows for the increased complexity and expedited processing which would otherwise ... -
Analysis and applications of melt expulsion during ultrasonic vibration-assisted laser surface processing
Alavi, Seyyed Habib (2018-05)Simultaneous application of ultrasonic vibrations during conventional material processing is recently gaining widespread attention due to enhancement of material removal mechanism and improvement in metallurgical quality. ... -
Analysis of measurements and improvements upon the Active Tissue Equivalent Dosimeter
Hayes, Bryan Michael (2020-07)The Oklahoma State University Radiation Physics Lab is nearing completion in the development of a tissue equivalent proportional counter (TEPC), the Active Tissue Equivalent Dosimeter (ATED), to monitor cosmic radiation ... -
Analysis of Wear and Corrosion Properties of 316 L Stainless Steel Additively Manufactured Using Laser Engineered Net Shaping (LENS®)
Sakthivel, Navin (2018-07-01)Additively manufactured stainless steel 316 L complex shaped components are used in various industries like oil and gas, chemical industries etc. for its excellent corrosion resistance and tribological properties. Additive ... -
Analyzing and Improving Viscoelastic Properties of High Density Polyethylene
Ahmed, Reaj Uddin (Oklahoma State University, 2011-07-01)High Density Polyethylene (HDPE) is closely packed, less branched polyethylene having higher mechanical properties, chemical resistance, and heat resistance than Low Density Polyentylene (LDPE). Better properties and cost ... -
Characterization of Viscoelastic Materials Through an Active Mixer by Direct-ink Writing
Drake, Eric (2017-05-01)Abstract: The goal of this thesis is two-fold: First, to determine mixing effectiveness of an active mixer attachment to a three-dimensional (3D) printer by characterizing actively-mixed, three-dimensionally printed silicone ... -
Coaxial and triaxial structured fibers by electrospinning for tissue engineering and sustained drug release
Khalf, Abdurizzagh Alfitori (2016-05)Coaxial and triaxial electrospinning are novel methods for fabrication of multilayered nano and micro-size fibers with desirable features such as co-solution blending, reinforced core, porous and hollow structure. However, ... -
Densification Behavior, Nanocrystallization, and Mechanical Properties of Spark Plasma Sintered Fe-based Bulk Amorphous Alloys
Singh, Ashish Kumar (Oklahoma State University, 2014-07-01)Fe-based amorphous alloys are gaining increasing attention due to their exceptional wear and corrosion resistance for potential structural applications. Two major challenges that are hindering the commercialization of these ... -
Determination of the mixed mode stress intensity factor on weakened planes for centrally cracked polycarbonate
Messer, Kyle R. (2022-12)The dynamic behavior of materials has been of interest for over a century. The development of high impact technology has seen great interest recently with notable fields such as weaponry, aerospace, automotive, and geoscience. ... -
Developing Video Measurement of Strain for Polymers Using Labview
Islam, Mazharul (Oklahoma State University, 2011-05-01)The purpose of this study was to develop a computer assisted video extensometer to measure strain, primarily for transparent polymers such as PET. Two markers, which were attached to the specimen, were tracked by the video ... -
Development of Thermoelectric Devices for Structural Composites
Nattiyatharil Panachaveettil, Oonnittan Jacob (Oklahoma State University, 2011-12-01)The study presented in this thesis covers a multiple methods for manufacturing thermoelectric structural composites for waste heat energy harvesting efficiently. Various attempts to fabricate a thermoelectric device suitable ... -
Doe Study of Polyurethane Processing Parameters Affects on Microphase Separation and Material Properties
Kandalaft, Tarek (2016-12-01)In this study, a design of experiments (DOE) has been setup to better understand the effects of percentage of hard segment (%HS), mixing index, temperature, and environmental humidity on the microstructure development, ... -
Effect of Crumb-rubber Particle Size on the Mechanical Response of Polyurethane Foam Composites
Sanjay, Omer Sheik (Oklahoma State University, 2014-07-01)The compression properties of foam are governed by by three factors: i) cell edge bending ii) compression of cell fluid iii) membrane stresses in the cell faces. The effect of reinforcement, granular form of scrap tire ... -
Effect of Dispersion Techniques on Fracture Toughness of Nanocomposites Prepared Using XG M-5 Graphene Nanoplatelets and EPON 862 Epoxy Resin
Mondal, Shamim (2018-07-01)This investigation reports on the effects of various mechanical dispersion techniques, surface treatments, and coupling agents on the fracture toughness of an epoxy resin reinforced with graphene nanoplatelets. The epoxy ... -
Effect of graphene oxide content and lithium salt on the phase separation between poly (ethylene glycol) and epoxy in a binary mixture for optimizing multifunctional performance in a polymer electrolyte
Austin, Alan James (2022-12)Structural supercapacitors represent a promising technology that will help in mitigating range anxiety while providing structural integrity to electric vehicles. Poly (ethylene glycol) (PEG), the ionic component of structural ... -
Effect of nanoparticles addition on the properties of polyurethane
Uppu, Vishanth (2018-05)This research is aimed at analyzing the properties of polyurethane nanocomposites, before and after cryogenic exposure. Graphene and Cloisite 30B were chosen as filler materials and the main purpose of adding these fillers ... -
Effect of space radiation on composite material that was internal and external of the pressurized volume on the International Space Station (ISS)
Juby, Ian D. (2022-07)The focus of this study will be on the effects that radiation environments on ISS have on composite coupons. Coupons from two different experimental programs HiMassSEE and MISSE-11 were used to run testing on. The HiMassSEE ... -
Effects of aligned graphene nanoplatelets (GNPs) on the multifunctional performance of carbon fiber reinforced polymer (CFRP) composites
Kotikalapudi, Sai Tharun (2023-05)This study investigates the multi-functional behavior of carbon fiber reinforced composites (CFRP) with respect to energy storage and electrical conduction applications. CFRP laminates were subjected to long-term exposure ... -
Fabrication of fine grained SiC and SiC-exfoliated graphene nanocomposites using spark plasma sintering of polymer derived SiC
Rahman, Arif (2014-07)In spite of excellent thermo-mechanical properties of silicon carbide (SiC), its application is limited due to its inherent brittle nature. Inclusion of a high strength and high modulus second phase can potentially improve ...