Author:Machaka, Ronald; Mwakikunga, Bonex W; Manikandan, E; Derry, TE; Sigalas, I; Herrmann, MDate:Sep 2011Results on a systematic study on the effects of ion implantation on the near-surface mechanical and structural properties of boron suboxide (B6O) prepared by uniaxial hot pressing are reviewed. 150 keV fluorine ions at fluences of up to 5.0 ...Read more
Author:Phiri, G; Sadiku, ER; Khoathane, MCDate:Oct 2012In recent years, considerable attention has been given by aircraft manufacturers to the development and utilisation of natural fibres
instead of synthetics. This is because natural fibres are a renewable raw material
and their availability ...Read more
Author:Pennefather, RC; Boone, DHDate:1996Cyclic oxidation tests were performed on a large variety of commercially available overlay coatings. The results confirmed that the composition of the coating as well as the processing method of the coating can affect the life of the system. ...Read more
Author:Pennefather, RC; Boone, DHDate:1995Cyclic oxidation tests were performed on a large variety of commercially available overlay coatings. The results confirmed that the composition of the coating as well as the processing method of the coating can affect the life of the system. ...Read more
Author:Du Plessis, JJL; Belle, BK; Vassard, PSDate:Jan 1999The primary objective of this report was to control the environment to ensure that dust and methane levels were within the regulating requirements. The mining industry, through the SIMRAC process, assigned the CSIR-Miningtek to test and ...Read more
Author:Hamdan, MHM; Siregar, JP; Thomas, S; John, Maya J; Jaafar, J; Tezera, CDate:May 2019Natural fibre acts as a significant replacement for the known synthetic fibre that tends to cause critical environmental issues. Hence, the hybridization of natural fibre reinforcement has been considered as one of the strategies in reducing ...Read more
Author:Mutombo, K; Du Toit, MDate:2010Semi-automatic and automatic pulsed gas metal arc welding (GMAW) of aluminium alloy 5083 with ER5356 filler wire causes considerable softening in the weld. The tensile strength of dressed automatic welds approaches that of the base metal, but ...Read more
Author:Shiloh, M; Hanekom, EC; Slinger, RIDate:Feb 1972Fabrics having widely differing physical properties can be obtained by intimately blending fibres having disparate mechanical properties.Read more
Author:Mutombo, K; Rossouw, P; Govender, GDate:Jul 2011Ti6Al4V alloy, produced by investment casting using yttria stabilized zirconia, was machined and then mill-annealed in vacuum furnace. The ultimate strength, yield strength and percentage elongation were largely improved compared to the same ...Read more
Author:Jayaramudu, J; Siva Mohan Reddy, G; Varaprasad, K; Sadiku, ER; Ray, SS; Varada Rajulu, ADate:Jul 2014The effects of chemical treatment on the mechanical, morphological, and chemical resistance properties of uniaxial natural fabrics, Grewia tilifolia/epoxy composites, were studied. In order to enhance the interfacial bonding between the epoxy ...Read more
Author:Makhado, E; Ray, SSDate:May 2015Environmentally friendly antimicrobial packaging materials are of great interest because they can delay microbial growth on the surface of foods, thus enhancing shelf-life. In this study, we synthesized a new type of organically modified clay ...Read more
Author:Gbadeyan, OJ; Adali, S; Bright, G; Sithole, Bishop B; Lekha, Prabashni SDate:May 2021This study deal with the development and investigation of a novel hybrid nano-shell plant fiber biocomposite. Nano-calcium carbonate CaCO3 ranging from 1 to 5 wt% and 20 wt% banana fiber-filled hybrid biocomposite were prepared using a hand ...Read more
Author:Lefatle, MC; John, Maya JDate:Aug 2018Aerogels are light and porous solid materials derived from gels and find applications in catalysis, wastewater treatment, and in automotive and aerospace industries. Aerogels are considered as a viable bio-based alternative for petroleum ...Read more
Author:Das, K; Ray, Suprakas S; Chapple, Stephen A; Wesley-Smith, JDate:May 2013Boehmite alumina (BAl) was investigated in terms of its use as an filler to improve the inherent properties of polylactide (PLA). Composites of PLA with different loadings of BAl were prepared by melt-blending. Morphological analysis using ...Read more
Author:Ntshabele, K; Isong, B; Abu-Mahfouz, Adnan MIDate:Dec 2021Inefficient energy utilization in the cognitive radio sensor networks (CRSNs) is a serious challenge that adversely affects its performance and quality of service (QoS). Several different strategies and mechanisms have been proposed and ...Read more
Author:Salehiyan, Reza; Bandyopadhyay, Jayita; Ray, Suprakas SDate:May 2019In this study, polyamide 6 (PA) is blended with ethylene vinyl alcohol (EVOH) to yield packaging materials with a balance of mechanical and gas barrier properties. However, the formation of gel-like structures in both polymers because of ...Read more
Author:De Beer, Morris; Maina, J; Van Rensburg, Yvette; Fisher, ColinDate:May 2018Mechanistic design and construction of flexible pavements with relatively thin (< 50 mm) asphalt road surfacings still remain an art today and are aimed especially towards first-class user experiences. Risks for surfacing failures are difficult ...Read more
Author:Cummings, FR; Le Roux, Lukas J; Hietkamp, SDate:Jul 2008Titanium dioxide (TiO) nanotubes hold great potential for application in dye-sensitised solar cells for they provide a one-dimensional transport route for generated charge carriers. An investigation is launched into the formation of these ...Read more