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Browsing Master of Science in Materials Science by Faculty

Browsing Master of Science in Materials Science by Faculty "Engineering"

Now showing items 1-20 of 31

2D - 3D Hybrid perovskites for perovskite solar cells

Gunasekara HKYPG [Thesis-Full-text]

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 ...
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 ...
Cost effective method to analyze lubrication oil

Rathnayake TNA [Thesis-Full-text]

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-Full-text]

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 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 mathematical model to relate the ageing parameters to hardness and tensile strength of al 6063 alloy

Sivanujan S [Thesis-Abstract]

Deformations, failures, and the wearing-off effect are common in Al 6063 structures due to their low strength and hardness, respectively. Industries have age-hardened Al 6063 alloy to improve its properties to a specified ...
Effect of external geometry on the fatigue behavior of fillet-welded transvers stiffeners in ship building

Seneviratne, ST [Thesis-Abstract]

This dissertation describes a study of the fatigue behavior of stiffeners on flange fillet welded joints stressed perpendicular to the weld line. The study included an experimental phase in which the fatigue life and ...
Effect of reflux temperature on synthesis of chitosan / nano-hydroxyapatite composites

Gunathilaka, EHGJ [Thesis-Abstract]

Effect of reflux temperature on synthesis of Chitosan / nano Hydroxyapatite composite In this study, effect of reflux temperature for synthesis of chitosan / Nano-hydroxyapatite composites was investigated. Chitosan / ...
Effects of carbon black and graphene oxide additions on properties of ordinary portland cement composite

Chandima AMB [Thesis-Full-text]

The effect of the carbon black (CB) and graphene oxide (GO) on the mechanical properties and microstructure of cement mortar composite were studied by preparing CB-cement composite (CBCC) and GO-cement composite (GOCC) ...
Establishment of correlation factor for the carbon steel rods tested under tensile load and three point bend test

Muthurathna, SK [Thesis-Abstract]

Steel is one of the major construction materials which play an important role in the construction industry in Sri Lanka. The supply of durable construction materials is always identified as one of the major obstacles to ...
Evaluation of suitability of 1,4- dimethylpiperazine as a substitute catalyst of polyurethane foam production

Samarappuli, IP [Thesis-Full-text]

The flexible polyurethane foams have been fabricated from polymeric 4,4’-di-phenylmethane diisocyanate (MDI) and polyols. Catalysts play a major role in polyurethane foam preparation controlling the reaction profile ...
Extraction and characterization of microfibrillated cellulose from textile cotton waste

Jayasinghe JMR [Thesis-Full-text]

Cotton is a natural staple fiber that almost consist with cellulose compared to wood. The major economic value of the cotton is in Textile Industry. In the past recent years, cotton consumption demand was increased than ...
Fabrication and characterization of surface modified nanofibrillated cellulose incorporated polypropylene composites

Kahawita, KDHN [Thesis-Full-text]

Increasing demand for materials with improved properties leads to acquiring advancement of nanomaterial. Therefore, Interest in nanocellulose has been increasing exponentially in recent years. Nanocellulose extracted from ...
Fabrication of roofing sheets using agricultural waste materials

Ferdinandus DP [Thesis-Full-text]

Modern roofing products are very popular in various applications due to their specific features to satisfy the local and global demand. Asbestos roofing products are currently used as a roofing solution in very large scale ...
Failure investigation of bell 412 main rotor blade trim tabs and study of suitable adhesive material application with a new trim tab design

Dheerasinghe PMGSD [Thesis-Full-text]

The Bell 412 helicopter is a type of aircraft in the Sri Lanka Air Force (SLAF) inventory which is accorded specialty status due to its role in the transportation of VVIPs in Sri Lanka. Over three decades of operation, the ...

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Browsing Master of Science in Materials Science by Faculty "Engineering"

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