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MESII - 2020
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Recent submissions

MESII - 2020: Recent submissions

Now showing items 1-20 of 25

Materials Engineering Symposium on Innovations for Industry 2020 (Pre Text)

Abeygunawardana, AAGA [Conference-Abstract]
Influence of low-amplitude high-frequency pulsed current on the deformation characteristics of low and medium carbon steels

Hendeniya, HMND; Shiranga, WMP; Abeygunawardane, AAGA; De Silva, GIP [Conference-Abstract]

When electrical pulses are applied to a metal during deformation, the resistance to deformation is dramatically reduced while the plasticity increases significantly. This phenomenon is introduced as electroplasticity. ...
Synthesis and morphological characterization of TiO2 nanotube arrays

Rajapakse, HD; Rathhnayaka, VWSG; Sitinamaluwa, HS; Jayasundara, DRT [Conference-Abstract]

TiO2 nanotube arrays have recently gained increased attention due to their unique properties such as high specific surface area, higher charge transport capability and excellent chemical and mechanical properties. It is ...
Mechanical behaviour of Cu-Zr binary metallic glasses: a molecular dynamic simulation study

Gamage, NH; Madhushan, PAC; Sitinamaluwa, HS [Conference-Abstract]

Metallic glasses (amorphous alloys) have gained increased attention in recent times due to their unique combination of mechanical properties such as high tensile strength, fatigue and wear resistance together with higher ...
Development of perovskite structured materials for solar cells

Anuruddha, WAI; Arush, KM; Galhenage, AS [Conference-Abstract]

Perovskite solar cells have drawn significant attention from the scientists and the industrialists because of the high efficiency. However, the fabrication of high quality film of perovskite material is a very difficult ...
Effect of marine environment on corrosion of mild steel

Divanka, JHHT; Dilrukshi, RAS; Guluwita, SP [Conference-Abstract]

Corrosion is a major problem in steel structures used in marine environments. This project was carried out to investigate the effect of environmental factors in Sri Lankan coastal area for the uniform corrosion rate of ...
Effect of graphene layer thickness on performances of dye-sensitized solar cells

Senaratna, HMA; Madushan, SAD; Galhenage, AS [Conference-Abstract]

Dye-sensitized solar cells (DSSCs) use platinum electrode as the counter electrode. In this study, to reduce the overall cost of DSSCs, graphene electrodes were fabricated as an alternative to platinum electrode. Graphene ...
Retrospective determination of water-to-cement ratio (w/c) of concrete through ultrasonic pulse velocity measurements

Anushan, R; Dilaittan, V; Sivahar, V; Piyathilake, SAKVM; Gamage, JCPH [Conference-Abstract]

The objective of this research is to find a method to determine the water-cement ratio that has been used in a concrete during construction, retrospectively. Water-Cement ratio affects the properties of concrete including ...
Synthesis and characterization of natural rubber/ silica/graphene-based-materials nanocomposites (latex based)

Madushanka, PHHP; Kumarawadu, PD; Liyanage, NMVK [Conference-Abstract]

Silica is used as a filler for reinforcement of Natural Rubber Latex (NRL) for non-black products. But silica is an inorganic compound and NRL is organic. Furthermore, silica has high filler to filler interactions so that ...
Relationship between ultrasonic pulse velocity and compressive strength of concrete with different mix designs

Saj, ARM; Prasanth, Y; Sivahar, V; Piyathilaka, SAKVM; Gamage, JCPH [Conference-Abstract]

It is a well-known fact that ultrasonic pulse velocity (UPV) is directly related to the quality of the concrete and therefore to its strength. However, these relationships are not independent of the type of concrete mix ...
Optimization of nano-crystalline cellulose formation from cellulose

Weerakkody, KM; Wathsala, KPT; Samarasekara, AMPB; Amarasinghe, DAS [Conference-Abstract]

This research work is based on the process optimization of nanocellulose extraction from chemically purified cellulose. Cellulose was extracted from rice straws of BG 352 which contains the highest cellulose percentage ...
Investigation of thermal and mechanical properties of micro cellulose based composites

Silva, JASR; Maduranga, SMK; Samarasekara, AMPB; Amarasinghe, DAS [Conference-Abstract]

This research is based on preparation of a composite with Micro Crystalline Cellulose (MCC) and Polypropylene (PP). MCC is hydrophilic and PP is hydrophobic in nature. To avoid less compatibility of these two materials, ...
A study on reducing casting defects of sand casted water pumps

Dawa, T; Lhamo, T; De Silva, GIP [Conference-Abstract]

Casting is one of the useful processes in producing products from utensils to machinery components. However, major disadvantage of this process is accompanying of casting defects, which bring great loss to the industry. ...
A study of the effect of load on the depth of sulphide stress corrosion of steel used in petroleum pipelines

Rathnayaka, RMMB; Madushan, HEMD; De Silva, GIP [Conference-Abstract]

The phenomenon of sulfide stress corrosion (SSC) can result in catastrophic failures in pressurized equipment and piping leading to extensive damages, injuries and possible fatalities. Sulfide stress corrosion, a major ...
Fabrication of split Hopkinson pressure bar apparatus to study uniaxial high strain rate behavior of aluminium

Rajapakshe, RMSW; Abeygunawardane, AAGA [Conference-Abstract]

There are many high strain rate related application in the world, including vehicle impact, blast welding, ballistic impact etc. Deformation mechanism of high strain rate applications differ from static applications, as a ...
Development of a methodology to identify repairable photoreceptor drums

Sampath, WGC; Senarath, GN; Attygalle, D [Conference-Abstract]

Toner cartridges are discarded due to the degradation of the organic photoconductor while the other parts of the cartridge are in usable condition. This research is focused on developing a method to identify repairable ...
Development of a piezoresistive pressure sensor using laser scribed graphene

Prabhath, AAN; Perakotuwa, HPTS; Attygalle, D [Conference-Abstract]

Pressure sensors are often used in applications in the areas of direct pressure sensing in weather instrumentation, aircrafts, automobiles, machinery and Altitude sensing in aircraft, rockets, satellites. Development of ...
Development of a low-cost ceiling material based on local rice husks and waste plastics

Lakmal, TCT; Chathurika, KPI; Udayakumara, SV [Conference-Abstract]

In the modern world, plastics play a dominant role among all other types of materials. However, not like other materials, plastics take long time to degrade in normal environmental conditions. Plastics used in packaging ...
Phosphoric acid treated rice husk as a low cost biosorbent for cadmium removal from wastewater

Ranaweera, PB; Madushanka, HM; Udayakumara, SV [Conference-Abstract]

Heavy metals, a contaminant present in polluted water pose a major threat to humans due to its ability to cause various health risks such as cancers, defective bone mineralization and chronic kidney disease. The most ...
Development of a method to measure contact angles of sessile droplets to analyze and enhance the surface wettability of nichrome

Kumarasiri, AAAP; Amarasinghe, DAS; Attygalle, D [Conference-Abstract]

Nichrome (Ni/Cr) alloys are used in many industrial applications due to their better electrical properties and commercial availability. It is a known fact that these alloys are having a surface passivation layer of chromium ...

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