Browsing OSU Dissertations by Author "Vaidyanathan, Ranji"
Now showing items 1-13 of 13
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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 ... -
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 ... -
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 ... -
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 ... -
Fracture behavior and time dependent properties of poss-epoxy nanocomposites
Mishra, Kunal (2015-07)This study investigates the fundamental mechanism that governs the influence of glycidyl POSS on the time-dependent behavior of epoxy-POSS composite as a function of added weight percent. Different formulation of POSS-epoxy ... -
Injection molded poly(ethylene terephthalate)-graphene nanocomposites
Bandla, Sudheer (2015-05)Polymer nanocomposites are known for their superior properties (mechanical, thermal, etc.) compared to conventional composites. Nanoscale reinforcements are used to make such composites as they have fewer defects and higher ... -
Mechanisms governing onset of sliding friction
Subramanian, Vijay (2014-12)Experimental observations on slip onset during quasistatic shearing of bimaterial interface are presented in this study. Although friction has been a subject of multi-disciplinary research for many decades, events surrounding ... -
Modeling the ionizing radiation environment in Earth's atmosphere
Inman, Paul Edward (2021-05)The constant bombardment of the Earth by cosmic radiation leads to an atmospheric radiation environment comprised of many species of energetic secondary particle. Aside from carrying out full Monte Carlo simulations from ... -
Nanoscale carbon fiber-matrix interphase characterization with atomic force microscopy indentation
Seyed Faraji, Leila (2014-05)At the region between fiber and matrix in a composite there is a region called interphase region, which basically has different properties than bulk matrix and fiber. This region is responsible for the loads transfer from ... -
Synthesis and characterization of nanosized hybrid polymer modifier (hpm) for improved mechanical and thermal behaviour of composites
Dhakal, Dilli Ram (2022-05)Lightweight carbon fiber-reinforced polymer composites are replacing metallic components in the aerospace and automotive industries due to their improved strength-to-weight ratios and fatigue resistance. Despite their ...