Browsing Division of Chemical Sciences by Title
Now showing items 509-528 of 1498
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Investigations in stereochemistry and synthetic chemistry
Part I Cycloaddition of acrylates (methyl acrylate and methyl methacrylate) to an unsymmetrically substituted cyclopentadienone of type 1a yields the regioisomeric products 2 and 3; the disubstituted product 4 is obtained ... -
Investigations in terpenes : studies in the stereochemistry of polysubstituted cyclohexane derivatives
This thesis, entitled “Investigations in Terpenes: Studies in the Stereochemistry of Polysubstituted Cyclohexane Derivatives,” is divided into three Parts. Part I Part I is divided into three chapters. Chapter I gives a ... -
Investigations Into The Bulk Single Crystals, Nano Crystal Composites And Thin Films Of Ferroelectric Materials For Pyroelectric Sensor Applications
(2011-02-02)In this thesis, the results pertaining to various investigations carried out on Triglycine sulphate (TGS) single crystals, polyvinylidene fluoride (PVDF) films, lithium tantalate (LT)/PVDF nanocomposites and LT thin films ... -
Investigations into the Microstructure Dependent Dielectric, Piezoelectric, Ferroelectric and Non-linear Optical Properties of Sr2Bi4Ti5O18 Ceramics
(2018-03-14)Ferroelectric materials are very promising for a variety of applications such as high-permittivity capacitors, ferroelectric memories, pyroelctric sensors, piezoelectric and electrostrictive transducers and electro-optic ... -
Investigations Into The Microstructure-Property Correlation In Doped And Undoped Giant Dielectric Constant Material CaCu3Ti4O12
(2010-05-24)High dielectric constant materials are of technological importance as they lead to the miniaturization of the electronic devices. In this context, the observation of anomalously high dielectric constant (>104) in the ... -
Investigations Into The Structural And Dielectric Properties Of Nanocrystallites Of CaCu3Ti4O12 And The Composites Based On Polymers And Glasses
(2013-09-10)Ceramics and polymer-ceramic composites associated with high dielectric constants are of both scientific and industrial interest as these could be used in devices such as capacitors, resonators and filters. High dielectric ... -
Investigations into the Structural and Physical Properties of Li2O-M2O-2B2O3 (M=Li, Na & K), BaO-TiO2-B2O3 and 2Bi2O3-B2O3 Glass Systems
(2018-04-06)Borate glasses and glass-nano/microcrystal composite fabrication and investigations into their physical properties, have been interesting from their multifunctionalities view point. Certain borate structural units possess ... -
Investigations Into The Synthesis, Structural And Dielectric Properties Concerning The Relaxor Behavior Of n=2 Members Of The Aurivillius Family Of Oxides
(2010-05-21)Relaxor ferroelectrics have been a subject of intense research owing to their interesting physical properties such as high dielectric constant and giant electro-striction. Unlike the conventional lead based relaxors, the ... -
Investigations into the Synthesis, Structural and Multifunctional Aspects of Ba0.85Ca0.15Zr0.1Ti0.9O3 and K0.5Na0.5NbO3 Ceramics
(2018-06-23)Non-centrosymmetric materials that can be polarized under applied mechanical stress or electric field are piezoelectric in nature and the phenomenon is called piezoelectric effect. They are broadly classified as direct and ... -
Investigations into the Synthesis, Structural, Dielectric and Optical Properties of Multifunctional M2NaNb5O15 (M=Ba, Sr) Nanocrystals and Glass Nanocrystal Composites
The physical properties of borate-based glasses comprising crystallites of inorganic materials (polar) at different length scales have become increasingly important owing to their importance in the design and fabrication ... -
Investigations into the Synthesis, Structural, Dielectric, Piezoelectric and Ferroelectric Properties of Lead-Free Aurivillius Family of Oxides
(2018-07-30)Bismuth layer-structured ferroelectrics have received significant attention recently due to their fairly high TC and good fatigue endurance which make them important candidates for non-volatile ferroelectric random access ... -
Investigations of Borocarbonitrides and Nanocarbons
The thesis consists of three parts of which Part 1 describes the investigations of borocarbonitrides. In this Part, Section 1.1 provides the synthesis and characterization of different compositions of borocarbonitrides. ... -
Investigations of catalysts and oxide superconductors ny exafs and other techniques
Abstract not available -
Investigations of Chalcogen-Cathodes and a Carbonitride-Anode for Alkali-Based Rechargeable Batteries
In this thesis, we have attempted to understand the working principle of Li(Na)-S(Se) battery and following such understandings we have attempted towards the design of various S(Se)- cathode materials for the alkali based ... -
Investigations Of Graphene And Open-Framework Metal Carboxylates
(2013-08-02)The thesis contains two parts. Part 1 describes the investigations on graphene and contains five sections. Section 1, gives a brief overview of graphene and other nanocarbons. The other four sections deal with various ... -
Investigations Of Graphene, Noble Metal Nanoparticles And Related Nanomaterials
(2015-02-04)The thesis consists of four parts of which part 1 presents a brief overview of nanomaterials. Parts 2, 3 and 4 contain results of investigations of graphene, nanofilms of noble metal nanoparticles and ZnO nanostructures ... -
Investigations Of Mechanical And Thermoelectric Properties Of Group (VIB) Transition Metal Disilicides
(2009-09-10)Transition Metal (TM) silicides are potential materials for different high temperature applications due to their high melting points and chemical stability at elevated temperatures. In the present work, the possible use of ...