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MESII - 2020
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Browsing MESII - 2020 by Title

Browsing MESII - 2020 by Title

Now showing items 1-20 of 25

Design and development of ultrasonic wave generator using piezoelectric ceramics

Sivanujan, S; Adikary, SU [Conference-Abstract]

Ultrasonic transducers using piezoelectric materials are popular among researchers because of the efficiency, ease handling, low weight, and small size. In this research, an ultrasonic wave generator using piezoelectric ...
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 ...
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 ...
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 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 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 ...
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 ...
Enhance the bond strength between concrete and coated reinforcement steel bars

Silva, WKEL; Dassanayake, DAMP; Guluwita, SP [Conference-Abstract]

Corrosion of steel bars embedded in reinforced concrete structures reduces the service life and durability of structures causing early failure of structures, which costs significantly for inspection and maintenance of ...
Enhancing high temperature stability of asphalt to eliminate corrugation

Kogulan, L; Anojan, MC; Guluwita, SP [Conference-Abstract]

Asphalt is widely used as the road pavement material. Warmer conditions in tropical countries like Sri Lanka, leads to corrugation of asphalt pavements. The main objective of this research is to enhance the thermal stability ...
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 ...
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. ...
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, ...
Materials Engineering Symposium on Innovations for Industry 2020 (Pre Text)

Abeygunawardana, AAGA [Conference-Abstract]
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 ...
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 ...
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 ...
Prediction of true compressive flow stress of aa 6063 alloy through ultrasonic attenuation

Jurmey, K; Ghimire, NS; Sivahar, V; Abeygunawardana, AAGA; Piyathilake, SAKVM [Conference-Abstract]

During the compression testing of any material sample, the true compressive flow stress of the material cannot be determined due to the presence of friction between the end surfaces of the specimen and platens (of the ...
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 ...
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 ...

Now showing items 1-20 of 25

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