Structure-property relationships in a CoCrMo alloy at micro and nano-scales.

Ahmed, R.; de Villiers Lovelock, H.L.; Faisal, N.H.; Davies, S.

doi:10.1016/j.triboint.2014.06.015

A progressive study into offshore wind farm maintenance optimisation using risk based failure analysis. (2014)
Journal Article
SINHA, Y. and STEEL, J.A. 2015. A progressive study into offshore wind farm maintenance optimisation using risk based failure analysis. Renewable and sustainable energy reviews [online], 42, pages 735-742. Available from: https://doi.org/10.1016/j.rser.2014.10.087

Offshore Wind Farm consists of an array of Wind Turbines electrical, communication, command and control systems. At present the cost of maintaining Wind Turbines in the offshore locations is very high (about 35% of lifetime costs). This work puts emp... Read More about A progressive study into offshore wind farm maintenance optimisation using risk based failure analysis..

Forward and backward motion control of a vibro-impact capsule system. (2014)
Journal Article
LIU, Y., PAVLOVSKAIA, E., WIERCIGROCH, M. and PENG, Z. 2015. Forward and backward motion control of a vibro-impact capsule system. International journal of non-linear mechanics [online], 70, pages 30-46. Available from: https://doi.org/10.1016/j.ijnonlinmec.2014.10.009

A capsule system driven by a harmonic force applied to its inner mass is considered in this study. Four various friction models are employed to describe motion of the capsule in different environments taking into account Coulomb friction, viscous dam... Read More about Forward and backward motion control of a vibro-impact capsule system..

Rotationally asymmetrical compound parabolic concentrator for concentrating photovoltaic applications. (2014)
Journal Article
ABU-BAKAR, S.H., MUHAMMAD-SUKKI, F., RAMIREZ-INIGUEZ, R., MALLICK, T.K., MUNIR, A.B., YASIN, S.H.M. and RAHIM, R.A. 2014. Rotationally asymmetrical compound parabolic concentrator for concentrating photovoltaic applications. Applied energy [online], 136, pages 363-372. Available from: https://doi.org/10.1016/j.apenergy.2014.09.053

This paper describes a novel type of solar concentrator - a rotationally asymmetrical compound parabolic concentrator (RACPC). The RACPC aims at addressing the following objectives: (i) to increase the electrical output of a concentrating photovoltai... Read More about Rotationally asymmetrical compound parabolic concentrator for concentrating photovoltaic applications..

Five principles for the practice of knowledge exchange in environmental management. (2014)
Journal Article
REED, M.S., STRINGER, L.C., FAZEY, I., EVELY, A.C. and KRUIJSEN, J.H.J. 2014. Five principles for the practice of knowledge exchange in environmental management. Journal of environmental management [online], 146, pages 337-345. Available from: https://doi.org/10.1016/j.jenvman.2014.07.021

This paper outlines five principles for effective practice of knowledge exchange, which when applied, have the potential to significantly enhance the impact of environmental management research, policy and practice. The paper is based on an empirical... Read More about Five principles for the practice of knowledge exchange in environmental management..

Integration of gas transport through a composite catalytic inorganic ceramic membrane for environmental gas separation processes. (2014)
Journal Article
NWOGU, N., OKON, E. and GOBINA, E. 2014. Integration of gas transport through a composite catalytic inorganic ceramic membrane for environmental gas separation processes. International journal of scientific engineering and technology [online], 3(9) pages 1184-1188. Available from: http://ijset.com/publication/v3/268.pdf

This work presents the transport behaviour of carrier gases with inorganic ceramic membrane used for environmental gas separations at 289K and 0.01-1 bar. The gases tested include: Helium (He), Nitrogen (N2), Carbon dioxide (CO2) and Argon (AR). The... Read More about Integration of gas transport through a composite catalytic inorganic ceramic membrane for environmental gas separation processes..

Purification of gases using nanoporous inorganic membranes. (2014)
Journal Article
KAJAMA, M.N., SHEHU, H. and GOBINA, E. 2014. Purification of gases using nanoporous inorganic membranes. International journal of scientific engineering and technology [online], 3(9), pages 1156-1159. Available from: https://www.ijset.com/publication/v3/262.pdf

The application of membranes has gained acceptance in the chemical and process industries for separation and purification for over three decades and is currently being practiced for natural gas processing, waste water treatment among others. A crack-... Read More about Purification of gases using nanoporous inorganic membranes..

Compression-after-impact (CAI) performance of epoxycarbon fibre-reinforced nanocomposites using nanosilica and rubber particle enhancement. (2014)
Journal Article
NIKFAR, B. and NJUGUNA, J. 2014. Compression-after-impact (CAI) performance of epoxycarbon fibre-reinforced nanocomposites using nanosilica and rubber particle enhancement. IOP conference series: materials science and engineering [online], 64(1), Article 012009. Available from: https://doi.org/10.1088/1757-899X/64/1/012009

One of the problems in the design of automotive structures and body parts made by fibre reinforced composites is that these materials are susceptible to a small energy impact caused by for instance, accidental tool drop during maintenance or stone st... Read More about Compression-after-impact (CAI) performance of epoxycarbon fibre-reinforced nanocomposites using nanosilica and rubber particle enhancement..

A review on the effect of mechanical drilling on polymer nanocomposites. (2014)
Journal Article
STAROST, K. and NJUGUNA, J. 2014. A review on the effect of mechanical drilling on polymer nanocomposites. IOP conference series: materials science and engineering [online], 64(1), Article 012031. Available from: https://doi.org/10.1088/1757-899X/64/1/012031

Over the past decade, polymer nanocomposites have undergone intensive research and development ensued by its increasing implementation within commercial applications. Consequently, the full life-cycle performance and any health risks associated with... Read More about A review on the effect of mechanical drilling on polymer nanocomposites..

Highly transparent and luminescent nanostructured Eu203 doped ZnO films. (2014)
Journal Article
SREEDHARAN, R.S., GANASAN, V., SUDARSANAKUMAR, C., PRABHU, R. and PILLAI, V.P.M., 2014. Highly transparent and luminescent nanostructured Eu203 doped ZnO films. IOP conference series: materials science and engineering [online], 64, Article 012027. Available from: https://doi.org/10.1088/1757-899X/64/1/012027

Zinc oxide is a wide, direct band gap II-VI oxide semiconductor. Pure and Eu-doped ZnO films are prepared by RF Magnetron sputtering at different doping concentrations (0.5, 1, 3 and 5 wt %). The films are annealed at 500 0C in air for two hours. The... Read More about Highly transparent and luminescent nanostructured Eu203 doped ZnO films..

Investigations on surface wettability of ZnO nanowires using UV LEDs for biosensing applications. (2014)
Journal Article
BHAVSAR, K., PRABHU, R. and POLLARD, P. 2014. Investigations on surface wettability of ZnO nanowires using UV LEDs for biosensing applications. IOP conference series: materials science and engineering [online], 64, Article 012033. Available from: https://doi.org/10.1088/1757-899X/64/1/012033

ZnO is a biocompatible material suitable for biosensors and microfluidic devices. Nanowires of ZnO tend to show hydrophobic nature which decelerates the adhesion/adsorption of biomolecules on the surface. This paper discusses the investigations on tu... Read More about Investigations on surface wettability of ZnO nanowires using UV LEDs for biosensing applications..

Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste. (2014)
Journal Article
ADEGBOTOLU, U.V., NJUGUNA, J., POLLARD, P. and YATES, K. 2014. Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste. IOP conference series: materials science and engineering [online], 64, Article 012023. Available from: https://doi.org/10.1088/1757-899X/64/1/012023

Due to the European Union (EU) waste frame work directive (WFD), legislations have been endorsed in EU member states such as UK for the Recycling of wastes with a vision to prevent and reduce landfilling of waste. Spent oil based drilling mud (drilli... Read More about Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste..

Experimental study of gas flux characteristics in a CO2 selective silica based modified membrane. (2014)
Journal Article
NWOGU, N.C., KAJAMA, M.N. and GOBINA, E. 2014. Experimental study of gas flux characteristics in a CO2 selective silica based modified membrane. International journal of advanced research in engineering and technology (IJARET) [online], 5(8), pages 1-9. Available from: http://www.iaeme.com/MasterAdmin/Journal_uploads/IJARET/VOLUME_5_ISSUE_8/IJARET_05_08_001.pdf

The purpose of membrane gas separation for CO2 capture from flue gas process is to reduce greenhouse emissions as well as associated environmental challenges globally. This study looks at gas separation in a single gas permeation experiment using CO2... Read More about Experimental study of gas flux characteristics in a CO2 selective silica based modified membrane..

Mechanical and impact performance of three-phase polyamide 6 nanocomposites. (2014)
Journal Article
GENDRE, L., NJUGUNA, J., ABHYANKAR, H. and ERMINI, V. 2015. Mechanical and impact performance of three-phase polyamide 6 nanocomposites. Materials and design [online], 66(Part B), pages 486-491. Available from: https://doi.org/10.1016/j.matdes.2014.08.005

In this work, three-phase nanocomposites using multiscale reinforcements were studied to evaluate the influence of nanofillers on static and dynamic mechanical properties at varying temperature conditions. In particular, short-fibres reinforced polya... Read More about Mechanical and impact performance of three-phase polyamide 6 nanocomposites..

Too enthusiastic to care for safety: present status and recent developments of nanosafety in ASEAN countries. (2014)
Journal Article
KARIM, M.E., MUNIR, A.B., REZA, A.W., MUHAMMAD-SUKKI, F., YASIN, S.H.M., ABU-BAKAR, S.H. and RAHIM, R.A. 2015. Too enthusiastic to care for safety: present status and recent developments of nanosafety in ASEAN countries. Technological forecasting and social change [online], 92, pages 168-181. Available from: https://doi.org/10.1016/j.techfore.2014.07.003

Nanotechnology has the prospect to vibrate the imagination of human being and has the ability to be used in almost every sector of human need. With its limitless potentials, there are many environmental, health and safety related concerns due to extr... Read More about Too enthusiastic to care for safety: present status and recent developments of nanosafety in ASEAN countries..

Thermo-mechanical performance of poly(lactic acid)/flax fibre-reinforced biocomposites. (2014)
Journal Article
NASSIOPOULOS, E. and NJUGUNA, J. 2015. Thermo-mechanical performance of poly(lactic acid)/flax fibre-reinforced biocomposites. Materials and design [online], 66(Part B), pages 473-485. Available from: https://doi.org/10.1016/j.matdes.2014.07.051

In this study, the thermo-mechanical performance of flax fibre reinforced poly lactic acid (PLA) biocomposites was investigated for the potential use in load bearing application such as body-in-white and body structures in the automotive sector. Focu... Read More about Thermo-mechanical performance of poly(lactic acid)/flax fibre-reinforced biocomposites..

Significance of effective lubrication in mitigating system failures: a wind turbine gearbox case study. (2014)
Journal Article
SINHA, Y., STEEL, J.A., ANDRAWUS, J.A. and GIBSON, K. 2014. Significance of effective lubrication in mitigating system failures: a wind turbine gearbox case study. Wind engineering [online], 38(4), pages 441-449. Available from: https://doi.org/10.1260/0309-524x.38.4.441

The effectiveness of lubrication in machines mainly depends on the physical and chemical properties of lubricating oil, like quantity, level of suspended particles, effect of external load/shear forces, temperature amongst others. Periodic inspection... Read More about Significance of effective lubrication in mitigating system failures: a wind turbine gearbox case study..

An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings. (2014)
Journal Article
FAISAL, N.H., AHMED, R., PRATHURU, A.K., SPENCE, S., HOSSAIN, M. and STEEL, J.A. 2014. An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings. Engineering fracture mechanics [online], 128, pages 189-204. Available from: https://doi.org/10.1016/j.engfracmech.2014.07.015

This study presents an improved approach to the quality assessment of thermally sprayed coatings. Measurements were carried out on five different coatings. Since it is the overall extent of surface cracking during Vickers indentation that is indicati... Read More about An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings..

Electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolytic graphite electrode modified with graphene. (2014)
Journal Article
KRUANETR, S., POLLARD, P., FERNANDEZ, C. and PRABHU, R. 2014. Electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolytic graphite electrode modified with graphene. International journal of electrochemical science [online], 9(10), pages 5699-5711. Available from: https://doi.org/10.1016/S1452-3981(23)08199-3

We present in this manuscript for the first time the electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolitic graphite electrode (EPPGE) modified with graphene. The electroche... Read More about Electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolytic graphite electrode modified with graphene..

Gas permeation study using ceramic membranes. (2014)
Journal Article
KAJAMA, M.N., NWOGU, N.C. and GOBINA, E. 2014. Gas permeation study using ceramic membranes. Energy and environment research [online], 4(3), pages 43-49. Available from: https://doi.org/10.5539/eer.v4n3p43

A 6000 nm ceramic membrane was repaired with boehmite solution (ALOOH) through the repeat dip-coating technique. The permeance of hydrogen (H2) and carbon dioxide (CO2) were obtained through the membrane in relation to average pressure at room temper... Read More about Gas permeation study using ceramic membranes..

Structure-property relationships in a CoCrMo alloy at micro and nano-scales. (2014)
Journal Article
AHMED, R., DE VILLIERS LOVELOCK, H.L., FAISAL, N.H. and DAVIES, S. 2014. Structure-property relationships in a CoCrMo alloy at micro and nano-scales. Tribology international [online], 80, pages 98-114. Available from: https://doi.org/10.1016/j.triboint.2014.06.015

This investigation considered the multiscale tribo-mechanical evaluations of CoCrMo (Stellite®21) alloys manufactured via two different processing routes of casting and HIP-consolidation from powder (Hot Isostatic Pressing). These involved hardness,... Read More about Structure-property relationships in a CoCrMo alloy at micro and nano-scales..

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