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Browsing Faculty of Engineering, Materials Engineering by Title

Browsing Faculty of Engineering, Materials Engineering by Title

Now showing items 1-20 of 57

2D - 3D Hybrid perovskites for perovskite solar cells

Gunasekara HKYPG [Thesis-Abstract]

Hybrid Organic-Inorganic Perovskites (HOIP) have been studied extensively and grown popular. Especially in Three-dimensional (3D) Perovskites, achieving power conversion efficiency (PCE) exceeds 23%. Nevertheless, some of ...
Analysis of corrosion of aircraft fluid pressure lines using eddy current

Edirisinghe, DR [Thesis-Full-text]

The metal tubes are often used in aircraft to convey fluids to one or more destinations as they are capable of withstanding high levels of internal pressure and hoop stresses. The internal surfaces of fluid carrying metal ...
Analysis of fast attack craft rudder failure

Gunarathna, AHGPN [Thesis-Full-text]

It is observed that frequent rudder failures of Sri Lanka Navy’s fast attack craft which are equipped with conventional propulsion system. Therefore, it was unable to effectively utilize these craft for operational ...
Characterization of locally available mica minerals for capacitor applications

Siriwardhane TAEI [Thesis-Full-text]

Mica is a group of minerals of the hydrated alumino silicate of iron, magnesium, potassium, lithium and sodium etc. Commercially, the two most widely used micas in the electrical industry are the muscovite and phlogopite ...
Characterization of locally available montmorillonite clay minerals to be used as nano particles

Wanasinghe, DD [Thesis-Abstract]

The research work describes the extraction of nano particles of Montmorillonite clay from local clay deposits located in the dry zone of the country, and its characterization techniques using X-Ray diffraction, Fourier ...
Characterization of weld defects in single V-butt welded mild steel plates using ultrasonic A-scan technique

Tennakoon, TMR [Thesis-Abstract]

In Ultrasonic A-Scan technique the depth and the size of the defects in a material can be determined by the position and amplitude of the reflected echo on the CRT screen. However the main difficulty in ultrasonic testing ...
Comparison of corrosion behavior of steel reinforcement bars in ordinary Portland cement and Portland Pozzolana cement environments

De Costa KBMVS [Thesis-Abstract]

In the Sri Lankan cement market present time blended hydraulic cement which is composited with fly ash or blast furnace slag are given a noticeable marketing share as supplementary cement. It has obtained more popularity ...
Computational study on lead alternative perovskites for perovskite solar cells

Kumarasinghe KAMM [Thesis-Abstract]

Hybrid organic-inorganic metal halide based perovskite solar cells (PSCs) lie at the heart of the emerging technologies of the solar cells due to their ability to increase the cell efficiencies dramatically over the last ...
Conversion of Sri Lankan iron ore into high quality pellets to be used in iron making

Guluwita, SP [Thesis-Abstract]

Iron ores and lime are two of the available raw materials in Sri Lanka for iron making. However, proven reserves of iron ore deposits in Sri Lanka have not been scientifically estimated as yet. There is no indication of ...
Correlation between corrosion rate and ultrasonic attenuation on steel

Dayananda, HGSM [Thesis-Abstract]

Corrosion is the gradual destruction of material, usually metal, by chemical reaction with its environment. Usually the corrosion rate cannot be measured directly which needs sample preparation, fixing of samples in a ...
Correlation between the degree of corrosion and the ultrasonic parameters in steel

Piyathilake SAKVM [Thesis-Abstract]

In metallurgical engineering, corrosion is considered as one of the main reasons for the failure of metallic components. The main reason for this is that, the corrosion is a phenomenon which is mainly influenced by the ...
Cost effective method to analyze lubrication oil

Rathnayake TNA [Thesis-Abstract]

The lubricating oil analysis is the most common method to identify the condition of any machinery. There are various ways to analyze lubricating oil, and those methods are based on an individual examination of lubricant ...
Derivation of nanofibrillated cellulose from locally available rice straw

Ratnakumar A [Thesis-Abstract]

Cellulose has become a wonder material in the present context of research and development since it is fibrous and tough, hence biodegradable, biocompatible, and renewable natural polymer. Nowadays, rice straw as a cellulose ...
Developing a model to predict the propagation of sulfide stress corrosion of steel used for petroleum pipelines

Deemantha MBA [Thesis-Abstract]

Sulfide stress corrosion (SSC) is a deleterious type of corrosion that is abundant in petroleum refineries. SSC easily attacks oil country tubular goods (OCTG) in petroleum refineries. The main factors that affect SSC ...
Development of a classification system for Sri Lankan timber species based on physical properties

Madhuwanthi MAR [Thesis-Full-text]

An investigation was carried out on selected twenty five Sri Lankan timber species to study different wood properties which are commonly applied in the timber industry in Sri Lanka. Wood density, modulus of rupture, modulus ...
Development of a glazed clay body suitable for cookware

Jayawardane, JTST [Thesis-Abstract]

This research work describes development of a glazed red clay cookware body with adequate thermal shock resistance. Two red clay deposits were investigated (Malwana and Hambanthota region) which are currently used for ...
Development of a high thermal shock resistant ceramic body suitable for cookware

Pussepitiya, PPSS [Thesis-Abstract]

Development of a ceramic based cookware body with adequate thermal shock resistance was successfully developed using low cost raw materials. The objective of this work was to determine the composition and thermal shock ...
Development of a method to predict the plasticizer evaporation of PVC insulated electrical cables

Egodage DP [Thesis-Full-text]

Though insulation is critical to the performance of an electrical cable the assessment of the status of an insulation is still a major challenge. Since the root cause of most electrical cable failures is due to insulation ...
Development of coir fiber based insulative composite material to reduce thermal heat in buildings

Chamath LG [Thesis-Abstract]

Energy consumption is a critical factor in building design. Maintaining a comfortable indoor temperature consumes high energy than other necessities such as lighting and cooking. The building envelope is the main component ...
Development of thermal insulating and light weight roofing materials using fly ash-cement composites

Ariyadasa GLM [Thesis-Full-text]

This thesis is focused on developing an alternative roofing material for asbestos fibre cement sheets. Coal Fly ash (CFA) was selcted as the main matrix modifier, which was collected from the electrostatic precipitator in ...

Now showing items 1-20 of 57

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