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Browsing Master of Philosophy (M.Phil.) by Title

Now showing items 1-15 of 15

Characterization and modeling of thermo-mechanical behavior of solid tires with graphite as a heat transfer enhancer

Somaweera, D [Thesis-Abstract]

The solid resilient tire construction consists of three layers namely tread, cushion and base. The cushion or the middle layer provides a comfortable ride but also needs to reduce the heat buildup when the tire is subjected ...
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 ...
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 the degree of corrosion and the ultrasonic parameters in steel

Piyathilake SAKVM [Thesis-Full-text]

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 ...
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 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 ...
Enhancement of mechanical properties in the heat affected zone of AA 5083 weld joints

Mirihanage, WUS [Thesis-Abstract]

Decline of Mechanical properties were observed at the Heat Affected Zone (HAZ) of the Gas Metallic Arc Weld (GMAW) joints of the Aluminium Alloy (AA) 5083. It was concerned as a direct effect of the weld thermal cycle on ...
Enhancement of surface quality brass castings cost effectively using naturally available sand and clay available in Sri Lanka

De Silva, GIP [Thesis-Abstract]

Through a survey done for the Sri Lankan foundry industry using a structured questionnaire it was revealed that one of the most significant quality parameter of the brass casting is the high surface roughness. Properties ...
Modelling of the vulcanization process of thick-walled natural rubber articles

Weragoda, VSC [Thesis-Abstract]

A computer-based technique was developed to render the state of cure in thick-walled natural rubber compounds as measured by the oscillating disk rheometer torque. The method was based on a mathematical function derived ...
Non-destructive evaluation of hardness of stell through ultrasonic attenuation using ultrasonic flaw detector

Sivahar, V [Thesis-Abstract]

This research is focused on establishing a correlation between hardness which is one of the most important material property and ultrasonic attenuation in steels with the intention of developing a method to asses the ...
Prediction of corrosion behavior of mild steel in different Sri Lankan atmospheric conditions

Adikari, AAMT [Thesis-Full-text]

Corrosion is defined as the deterioration of materials due to the reaction with its environment. According to the physical nature of environment, corrosion can be categorized as 'corrosion in atmosphere', 'corrosion in ...
Preparation and characterization of low density polyethylene/modified chitosan/papain composite

Samarasekara, AMPB [Thesis-Abstract]

The objective of this research was to impart biodegradability to a polyethylene blend using Chitosan as the main additive which was extracted from fishery waste. Papain, a natural enzyme derived from papaya plant, was also ...
Synthesis of porous graphene from Sri Lankan graphite for supercapacitor applications

Sandaruwani MKA [Thesis-Abstract]

A feasible process to synthesize porous graphene with ultra-high surface area is presented in this thesis. Graphene oxide (GO) was synthesized from Sri Lankan graphite via the modified hummers method. Then, GO was ...
Theoretical investigation of thermogravimetric analysis on the decomposition of solid-state materials

Kumara DRD [Thesis-Full-text]

Thermogravimetric (TG) analysis and differential thermogravimetric (DTG) analysis are the most commonly used analytical techniques to determine the kinetic behaviour of solid-state chemical reactions through Arrhenius ...
Use of hydrolysis products of polythylene terephthalate scraps to produce alkyd based paint

Udayakumara, SV [Thesis-Full-text]

In modern world, plastics play a significant role in our daily life. However Sri Lankans' still have not introduced proper waste management system to daily increasing plastic garbage. Polyethylene terephthalate (PET) ...

Now showing items 1-15 of 15

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