Materials Engineering (MatEng): Recent submissions
Now showing items 101-120 of 311
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Improvement of High Temperature Strength of Al and Co Alloy by L12 Type Coherent Precipitates
The present work aims at developing a new class of high temperature alloys based on ordered intermetallic compound that forms coherently with the matrix during solid state transformation. The chosen intermetallics have ... -
Synthesis, Microstructural Stability and High Temperature Deformation of Alumina-Carbon Nanotube Composites
Structural ceramics such as alumina are known to have excellent hardness and high temperature mechanical properties. In view of this, they are used as refractory linings to mitigate the effect of high temperature exposure. ... -
Novel Phenomena Associated With Giant Tetragonality in the Ferroelectric BiFeO3-PbTiO3 System
The multiferroic perovskite solid solution xBiFeO3-(1-x)PbTiO3 (BF-PT) exhibits very unique features such as giant tetragonality (c/a ~ 1.19), coexistence of ferroelectric and magnetic order (in certain composition range) ... -
Organic-Inorganic Hybrid Photovoltaics : Interface Engineering, Fabrication and Characterization
In the past few decades the field of organic electronics particularly organics photovoltaic (OPVs) find wide interest among researchers. It finds many advantages such as light weight, low temperature fabrication requirements, ... -
Testing Methodologies for Probing Site Specific Fatigue Response of Graded Coatings
Thermal barrier coating systems (TBC’s) employed in the high pressure turbine section of a modern aero-turbine engine serve as an example of constrained material systems used for engineering applications. TBC’s today are ... -
Planar Fault Energies in L12 Compounds
High temperature metallic structural materials, such as Ni-base superalloys owe their strength to a two-phase microstructure consisting of an fcc matrix strengthened by intermetallic A3B type precipitates. The performance ... -
Atomistic Simulation of Grain Boundary Effects on Cascade Damage in Vanadium
Advancements in fusion reactor technology has led to the construction of ITER and the realisation of fusion energy is closer than ever before. However, realisation of fusion energy critically depends upon breakthrough in ... -
Evolution of Microstructure and Texture in Manganese Steels
Twinning Induced Plasticity (TWIP) and Transformation Induced Plasticity (TRIP) steels possess excellent combination of high strength and high ductility. Deformation twinning and strain induced martensitic phase transformation ... -
Engineering Bioactive Polymer/Ceramic Composite Nanofibrous Scaffolds for Bone Tissue Regeneration
Tissue repair and regeneration is a natural healing process seen in human body in response to injuries and infections. The regenerative capacity of most tissues decelerates with age and its associated pathological conditions. ... -
Influence of Surface Topography and Tribosystem on Reciprocating Friction in Sparsely Lubricated Contacts
Surface texturing to achieve reduced sliding friction has been a widely studied topic, as seen in contemporary literature. Laser surface texturing, grinding and ion beam milling are popular techniques accepted by researchers ... -
Nanoscale surface engineering of metallic biomaterials for enhancement of mechanical and biological responses
Metallic materials are widely used in load bearing orthopedic applications. The alloys used in the implants are 316L stainless steel (SS), commercially pure Ti (cp-Ti), Ti-6Al-4V and Co-Cr-Mo alloys. The life of implants ... -
Studies on Internal Reforming Solid Oxide Fuel Cell
Renewable energy becomes inevitable for future energy needs. Accordingly, researchers are exploring possible alternatives to conventional fuel based internal combustion engines. In recent years, Bio-fuel (methane/ethanol) ... -
Effect of Copper on Strength of Super 304H Austenitic Stainless Steel
Super 304H is a copper-containing austenitic stainless steel with potential applications in advanced thermal power plants owing to its superior corrosion, oxidation, creep resistances and cost affordability. The addition ... -
Insights into the Influence of Electric Field on the Structural Evolution and its Correlation with the Properties in the Lead-based BiScO3-PbTiO3 and the Lead-free Na0.5Bi0.5TiO3 based Piezoceramics
Advanced piezoelectric ceramics are widely used as piezoelectric sensors, transducers, actuators, etc. Among the commercially viable piezoelectric systems, lead zirconate titanate, PbZr1-XTiXO3 (PZT) has dominated the ... -
Bioremediation of Lead from Aqueous Solutions using Pseudomonas Species - Mechanisms & Biosensor Applications
Industrialization, urbanization and technological developments have improved the standard of living for humans on the one hand, but they also have resulted in the generation of wastes containing toxic heavy metals that are ... -
Synthesis and Characterization of Intermetallic Coatings by Laser Cladding and Novel Ball Milling Approach
The aim of the present work is to engineer a new kind of coating material with superior quality and reliability in a cost effective way by laser cladding and ball milling process. Non equilibrium processing methods were ... -
Synthesis and Phase Transformation Studies of Al45Mn55 Ferromagnetic Heusler Alloy
The aim of the present thesis work was to synthesize and explore the phase transformation behavior of a binary Heusler alloy based on AlMn system. The intermetallic phase with the stoichiometry AlMn, which is usually termed ... -
Mapping the Transient Morphologies and Demixing Behavior of Polystyrene/ Poly(vinyl methyl ether) Blend in the Presence of Multiwall Carbon Nanotubes
Multiphasic materials with precise structures are essential in designing materials for applications in various diverse areas like sensors, photovoltaics, porous membranes, etc. The transient morphology developed during ... -
Theoretical and Numerical Study of Microstructure Formation in Multi-component Alloys
The length scale, composition, orientation of the phases in a material constitutes its microstructure. In order to appreciate the whole gamut of microstructures observed in multi-component alloys, an identification of the ... -
Electric Field Driven Structural Transformations in BaTiO3 and Lead Zirconate Titanate (PZT) based Piezoceramics
Ferroelectrics are important class of functional materials that finds application in transducers, actuators, memory devices, electro-optics and position sensing devices. Until recently, the high performance piezoelectrics ...