Browsing by Advisor "Umarji, Arun M"
Now showing items 1-18 of 18
-
Design and Development of Microstereolithography (MSL) System and Its Applications in Microfabrication of Polymer and Ceramic Structures
(2017-11-30)In the present era where MEMS (Micro Electro-Mechanical Systems) technology is in¬evitable from the perspective of applications in non-silicon based micro-devices (such as biosensors, microfluidics, microvalves etc.), it ... -
Functional Oxides for Oxygen Scavenging Applications
The aim of this experimental study is to develop oxide-based materials for oxygen enrichment/separation from air through pressure/temperature swing sorption. Production of commercial oxygen is conventionally achieved ... -
III- Nitride Thin Films and Nanostructures on Si(111) by Plasma Assisted Molecular Beam Epitaxy
This thesis focuses on studying heterostructures of GaN, Silicon and AlN. GaN nanostructures are grown on bare Si (111) with and without a GaN buffer layer and GaN film was grown on an AlN layer. Apart from the material ... -
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 ... -
Investigations of Solution Combustion Process and their Utilization for Bioceramic Applications
(2018-01-13)Solution combustion synthesis (SCS) with its origin at IPC department of IISc has been widely practiced for synthesis of oxide materials. It is simple and low cost process, with energy and time savings that can be used to ... -
Methylammonium Lead Iodide thin lms grown by Pulsed Laser Deposition for Photodetector Applications
This thesis studies the fabrication and characterization of Methylammonium Lead Iodide perovskite thin films for photodetector applications. Unlike, any other perovskite halide material, Methylammonium Lead Iodide perovskite ... -
Microwave-Assisted Synthesis of Vanadium Oxide and Their Applications
Microwave-assisted synthesis has been extensively used to producemetal oxide, hydroxide and sulfides with unique nanostructures.In the present study, a novel, rapid and green microwave-assisted method has been developed ... -
Nanostructurization of Transition Metal Silicides for High Temperature Thermoelectric Materials
(2018-03-06)Transition Metal Silicides (TMS) are well known refractory materials because of their high thermal and structural stability at elevated temperature. In addition TMS materials are known for their moderate thermoelectric ... -
Oxidation of CO Catalysed by Nanometric Mono and Bi-Noble Metals on Various Oxide Supports
Air pollution results mainly from the injurious smoke emitted by cars, buses, trucks, factories etc. This smoke contains carbon monoxide, unburned hydrocarbons and oxides of nitrogen and sulphur. In case of cars, catalytic ... -
Physicochemical Characterization and Gas Sensing Studies of Cr1-xFexNbO4 and Application of Principal Component Analysis
(2018-03-01)Monitoring the working environment of laboratories and industries for pollutants is of primary concern to ensure the healthiness of working personnel. Semiconducting metal oxides (SMOs) are sensitive to the gas ambience ... -
Studies on Effect of Defect Doping and Additives on Cr2O3 and SnO2 Based Metal Oxide Semiconductor Gas Sensors
(2018-03-09)Metal Oxide (MO)semiconductors are one of the most widely used materials in commercial gas sensor devices. The basic principle of chemoresistive gas sensor operation stems on the high sensitivity of electrical resistance ... -
Synthesis and Characterization of Silica-Silica Porous Composite and Calcium Strontium Zirconium Phosphate Ceramics for Thermal Protection Applications
(2018-07-28)A porous silica –silica composite was processed with varying fiber diameters using the slurry moulding technique. The advantage of the process was that the density of the composite could be processed to the required levels. ... -
Thermoelectric Investigations of Si/β-FeSi2 composite
This thesis focuses on thermoelectric properties of environmentally friendly, cheap and non-toxic Si/β-FeSi2 composite materials. Although thermoelectric power generation is reliable and environmentally friendly technology ... -
Thermoelectrics and Oxygen Sensing Studies of Selected Perovskite Oxides
(2018-01-07)Perovskite oxides show wide range of applications in the area of magnetism, ferroelectricity, piezoelectricity, thermoelectricity, gas sensing, catalyst development, solid oxide fuel cell, etc. This is due to flexibility ... -
Towards high quality V2O5 and VO2 thin films for gas sensing, smart windows and optoelectronic applications
The global demand for improved living standards coupled with rising pollutant or hazardous gases levels, safety and security demands have led to increased demand for miniaturized gas sensors and photodetectors. Production ... -
Vanadium Dioxide: Bulk and Thin Films for Device Applications
In the present era, energy consumption is more than the energy that is generated for which renewable as well as non-renewable sources are used. In order overcome this lag, researchers are developing smart materials ...