• In-situ formation, anti-corrosion and hardness values of Ti-6Al-4V biomaterial with niobium via laser deposition 

  Phume, L; Popoola, API; Aigbodion, VS; Pityana, Sisa L (Inderscience, 2018)

  Ti-6Al-4V alloy biomaterials have low hardness, wear resistance, high corrosion rate and toxicity as results of release of aluminium and vanadium ions that led to the premature failure of the implant. In order to overcome ...
• Fractal light from lasers 

  Sroor, H; Naidoo, Darryl; Miller, SW; Nelson, J; Courtial, J; Forbes, A (American Physical Society, 2019-01)

  Fractals, complex shapes with structure at multiple scales, have long been observed in Nature: as symmetric fractals in plants and sea shells, and as statistical fractals in clouds, mountains and coastlines. With their ...
• Microstructural characteristics, crack frequency and diffusion kinetics of functionally graded Ti-Al composite coatings: Effects of Laser Energy Density (LED) 

  Olakanmi, EO; Sepako, M; Morake, J; Hoosain, Shaik E; Pityana, Sisa L (Springer Nature, 2018-12)

  This study examines the dependence of microstructural characteristics, crack frequency and diffusion kinetics of functionally graded (FGM) titanium aluminide coatings reinforced with TiC on laser energy density (LED). ...
• Preparation of carbon nanofibers/tubes using waste tyres pyrolysis oil and coal fly ash derived catalyst 

  Rambau, Khavharendwe MA; Musyoka, Nicholas M; Manyala, N; Ren, Jianwei; Langmi, Henrietta W; Mathe, Mahlanyane K (Taylor & Francis, 2018-05)

  In this study, two waste materials namely; coal y ash (CFA) and waste tyres pyrolysis oil, were successfully utilized in the synthesis of carbon nanofibers/tubes (CNF/Ts). In addition, Fe-rich CFA magnetic fraction (Mag-CFA) ...
• Fabrication of stainless steel based FGM by laser metal deposition 

  Bayode, A; Akinlabi, ET; Pityana, Sisa L (De Gruyter, 2018-04)

  Recent advancement in materials processing has resulted in the evolution of advance composite known as Functionally Graded Materials (FGMs). FGMs are multi-layered structures with composition and/or microstructure that ...
• Atmospheric corrosion testing in Southern Africa - Results of a twenty year national exposure programme 

  Callaghan, BG (Printed in the Republic of South Africa by Scientia Publishers, CSIR, 1991)

  Atmospheric corrosion is one the most widespread causes of metal and alloy degradation known. We only have to look at the corrosion of structural steelwork in buildings, bridges and other forms of construction to recognize ...
• The effect of specimen geometry on tensile properties of titanium alloy metal sheet 

  Masete, Mosimanegape S; Muchavi, Noluntu S; Chikosha, Silethelwe (2018-12)

  Determination of tensile properties of materials is required to reliably predict performance of engineering materials in service and for design purposes. Tensile properties are also used as a measure of product quality. ...
• A survey of anomaly detection in Industrial Wireless Sensor Networks with critical water system infrastructure as a case study 

  Ramotsoela, D; Abu-Mahfouz, Adnan MI; Hancke, G (MDPI, 2018-08)

  The increased use of IndustrialWireless Sensor Networks (IWSN) in a variety of different applications, including those that involve critical infrastructure, has meant that adequately protecting these systems has become a ...
• Standard method for microCT-based additive manufacturing quality control 1: Porosity analysis 

  Du Plessis, A; Sperling, P; Beerlink, A; Tshabalala, Lerato C; Hoosain, Shaik E; Mathe, Ntombizodwa R; Le Roux, SG (Elsevier, 2018-09)

  MicroCT is a well-established technique that is used to analyze the interior of objects non-destructively, and it is especially useful for void or porosity analysis. Besides its widespread use, few standards exist and none ...
• Cooperatives in waste and recycling: A recipe for failed waste hierarchy implementation? 

  Muswema, Aubrey P; Okem, A; Blottnitz, H; Oelofse, Suzanna HH (2018-10)

  In post-apartheid South Africa, cooperatives appear to be the government’s SMME model for driving job creation. Unfortunately, the mortality rates of cooperatives in all sectors is very high with a reported 12% survival ...
• Numerical simulation of plastic deformation and mechanical response of strip rolled aluminium alloys 

  Jansen van Rensburg, Gerhardus J; Bogaers, Alfred EJ (IOP Publishing, 2018-10)

  During the optimal design and simulation of machining or forming processes, detailed simulation of structural response is typically required for use in Finite Element Analysis (FEA). In this study, the bulk temperature and ...
• Analysis of mechanical property degradation in polymer nanoclay composites 

  Botha, Natasha; Inglis, HM; Labuschagne, FJWJ (2018-11)

  Polymers are used in various industrial applications due to their ease of production, light weight and ductility. Fillers such as nanoclays are added to polymers to improve a range of factors such as material processing, ...
• Printed RFID tags on paper and flexible substrates towards low-cost connected sensor systems 

  Smith, Suzanne; Oberholzer, Adelaide E; Land, Kevin J; Korvink, JG; Mager, D (2018-11)

  We present printed sensing radio frequency identification (RFID) tags on different paper and flexible substrates towards low-cost, automated connected sensor solutions. Combining the Internet of Things (IoT) with printed ...
• Synthesis of a novel amphiphilic nano-chitosan material 

  Matshe, William MR; Tshweu, Lesego L; Balogun, Mohammed O (IOP Publishing Ltd, 2018-10)

  Chitosan (CS) is a semi-synthetic polysaccharide derived from the most abundant naturally occurring polymer, chitin. It has found applications in fields as diverse as health, cosmetics, agriculture, environmental remediation ...
• Atmospheric corrosion testing in southern Africa: results of a twenty year national exposure programme 

  Callaghan, BG (Scientia Publishers, 1991)

  Atmospheric corrosion is one of the most widespread causes of metal and alloy degradation known. We only have to look at the corrosion of structural steelwook in buildings, bridges and other forms of construction to recognise ...
• The potential of paper-based diagnostics to meet the ASSURED criteria 

  Smith, Suzanne; Korvink, JG; Mager, D; Land, Kevin J (Royal Society of Chemistry, 2018-10)

  Paper-based diagnostics have already revolutionized point-of-care approaches for health and environmental applications, by providing low-cost, disposable tools that can be utilized in remote settings. These devices typically ...
• Tuning hydrophobic-hydrophilic balance of cathode catalyst layer to improve cell performance of proton exchange membrane fuel cell (PEMFC) by mixing polytetrafluoroethylene (PTFE) 

  Chi, B; Hou, S; Liu, G; Deng, Y; Zeng, J; Song, H; Liao, S; Ren, Jianwei (Elsevier, 2018-07)

  The wettability, or hydrophobic-hydrophilic balance, of cathode catalyst layer influences the performance of the proton exchange membrane fuel cell. In this paper, cathode catalyst layer with different polytetrafluoroethylene ...
• A review of waste tyre gasification 

  Oboirien, Bilainu O; North, Brian C (Elsevier, 2017-10)

  There has not been any comprehensive review on waste tyre gasification. This review evaluates the status of global research on gasification of waste tyres and the gaps in knowledge. Some recommendations for future research ...
• Standard method for microCT-based additive manufacturing quality control 2: Density measurement 

  Du Plessis, A; Sperling, P; Beerlink, A; Tshabalala, Lerato C; Hoosain, Shaik E; Mathe, Ntombizodwa R; Le Roux, SG (Elsevier, 2018-09)

  MicroCT is best known for its ability to detect and quantify porosity or defects, and to visualize its 3D distribution. However, it is also possible to obtain accurate volumetric measurements from parts – this can be used ...
• Standard method for microCT-based additive manufacturing quality control 3: Surface roughness 

  Du Plessis, A; Sperling, P; Beerlink, A; Kruger, O; Tshabalala, Lerato C; Hoosain, Shaik E; Le Roux, SG (Elsevier, 2018-09)

  The use of microCT of 10 mm coupon samples produced by AM has the potential to provide useful information of mean density and detailed porosity information of the interior of the samples. In addition, the same scan data ...

View more