Browsing Materials Engineering (MatEng) by thesis submitted date"2013"
Now showing items 1-18 of 18
-
Densification Mechanisms for Spark Plasma Sintering in Alumina and Alumina Based Systems
(2018-03-19)The densification mechanisms of polycrystalline α-alumina by spark plasma sintering are highly contradictory, with different research groups suggesting diffusion to dislocation controlled mechanisms to be rate controlling. ... -
Densification, Oxidation, Mechanical And Thermal Behaviour Of Zirconium Diboride (ZrB2) And Zirconium Diboride - Silicon Carbide (ZrB2-Sic) Composites
(2016-11-23)Sharp leading edges and nose caps on hypersonic vehicles, re-entry vehicles and reusable launch vehicles are items of current research interest for enhanced aerodynamic performance and maneuverability. The unique combination ... -
Design, Fabrication and Application of In situ Total Internal Reflection (TIR) Raman Tribometer For the Chemical Analysis of Tribological Systems
In conventional tribological experiments that study friction and wear behavior of materials, the contact interface is hidden by the contacting bodies. The physical or chemical phenomena taking place at the interface must ... -
Development of Hybrid Organic/Inorganic Composites as a Barrier Material for Organic Electronics
(2018-04-16)The ultra high barrier films for packaging find applications in a wide variety of areas where moisture and oxygen barrier is required for improved shelf-life of food/beverage products and for microbial free pharmaceutical ... -
Effect of Heat Treatment and Modification on Flow and Fracture Behaviour of a Newly Developed Al-Si Based Cast Alloy
(2018-04-17)The compression behavior of a newly developed near eutectic Al-Si based cast alloy with three different microstructures has been investigated in the present work. Microstructures with modified and unmodified Si particles ... -
Effect Of Processing And Test Variables On The Deformation Characteristics Of Tantalum
(2016-11-23)The dependence of flow stress of body centered cubic metals on variables such as strain rate, temperature, strain and microstructural is a research area of continued interest. Recently, there has been renewed interest in ... -
Experimental and Numerical Investigation on Friction Welding of Thixocast A356 Aluminium Alloy
(2017-12-01)The challenges of weight reduction and good strength in automotive industry have drawn considerable interest in thixocasting technologies. Joining of such components with conventional fusion welding creates voids, hot ... -
Interdiffusion Study in Group IVB, VB and VIB Refractory Metal-Silicon Systems
(2018-04-13)The knowledge of diffusion parameters provides important understanding of many physical and mechanical properties of materials. In most of the applications silicides are grown by a diffusion controlled process mainly in ... -
Investigation of Graphene Oxide Based Multilayered Capsules/Films for Drugs Delivery And Antimicrobial Applications
(2018-04-24)Polyelectrolyte multilayer capsules fabricated by layer-by-layer (LbL) self-assembly technique consistsing of core-shell structure have emerged as potential drug delivery systems along with their applications in micro-reactors, ... -
Micro-scale Fracture Testing of Graded (Pt,Ni)Al Bond Coats
(2018-04-16)PtNiAl bond coats are diffusion aluminide coatings deposited on superalloy based turbine blades for oxidation resistance and improved adhesion between the substrate and the YSZ thermal barrier coating on top. They are ... -
Microstructural Developments and Mechanical Properties of Electroless Ni-B Coating
(2018-04-24)Phase transformation behavior, micro structural development, mechanical and tribological properties of electroless Ni-B coating was characterized using different characterization techniques. As deposited electroless Ni-B ... -
Role Of Stacking Fault Energy On Texture Evolution In Micro- And Nano-Crystalline Nickel-Cobalt Alloys
(2017-05-24)Plastic deformation of metals and alloys are invariably accompanied by the development of texture. The origin of texture is attributed to the deformation micro-mechanisms associated with processing. The face-centered cubic ... -
Some Processing and Mechanical Behavior Related Issues in Ti-Ni Based Shape Memory Alloys
(2017-11-30)Shape memory alloys (SMAs) exhibit unique combination of structural and functional properties and hence have a variety of current and potential applications. The mechanical behaviour of SMAs, in particular the influence ... -
Structural, Ferroelectric, Piezoelectric and Phase Transition Studies of Lead Free (Na0.5Bi0.5)TiO3 Based Ceramics
(2018-04-23)Ferroelectric materials, especially the polycrystalline ceramics, are very promising material for a variety of applications such as high permittivity dielectrics, ferroelectric memories, piezoelectric sensors, piezoelect ... -
Study On Reactive Hot Pressing Of Zirconium Carbide
(2017-04-27)Group IV transition metal carbides are promising materials for high temperature structural application, due to their unique sets of properties such as high melting temperature, high temperature strength, hardness, elastic ... -
Synthesis And Study Of Microstructure Evolution In Nanoparticles Of Immiscible Alloys By Laser Ablation Under Liquid Medium
(2017-05-21)The present thesis deals with synthesis of free alloy nanoparticles in immiscible alloy systems by the process of laser ablation under a liquid. In this process the alloy target is submerged in a liquid and the plume formed ... -
Synthesis and Transformation of AuCu Intermetallic Nanoparticles
(2018-04-16)Investigations on size dependent phase stability and transformations in isolated nanoparticles have gained momentum in recent times. Size dependent phase stability generates size specific particle microstructure which ... -
Thiophene Derivative Photovoltaics : Device Fabrication, Optimization and Study of Charge Transport Characteristics
(2018-04-11)In the recent years area organic photovoltaics is generating a lot of interests because whole process of synthesis and fabrication is less energy intensive process as well as it is cost effective compared to conventional ...