Author:Komba, Julius J; Mgangira, Martin B; Mohale, LDate:Jul 2016The fundamental shape/morphological properties of coarse aggregates including form, angularity, and surface texture are known to influence the performance of pavements. The coarse aggregate shape properties are affected by many factors, amongst ...Read more
Author:Bhaumik, M; Mahule, TS; Srinivasu, VV; Maity, ArjunDate:Jun 2019One-dimensional composite nanostructures of chloride-doped polyaniline (PANI-Cl) and Fe nanoparticles (NPs) were fabricated via deposition of Fe NPs onto the PANI nanofiber matrix at room temperature. Morphological and structural characterization ...Read more
Author:Pandelani, Thanyani ADate:Jun 2014In this study, the responses of the HIII and MiL-Lx surrogate legs were evaluated at several blast loading conditions using the Modified Lower Limb Impactor. The impact tests were conducted using a lower limb impactor with the leg mounted ...Read more
Author:Wall, KDate:Apr 2006There is a need in South Africa for institutional innovations aimed at increasing the coverage of water services, and sustaining those services. The paper describes an investigation of an alternative service delivery institutional concept, ...Read more
Author:Nomqonde, BH; Mashinini, PM; Lekoadi, Paul M; Masina, Bathusile NDate:Nov 2022This study investigated the microstructure evolution of the TiC/Ti-6Al-4V matrix composite produced using a 1073 nm continuous wave (CW), IPG Ytterbium fibre laser. The influence of thermal gradient, overlap, and re-melting of the previous ...Read more
Author:Mametja, MBDate:Nov 2008FT-IR and FT-Raman spectra of 1,1,1-trichlorethane (CH3CCl3) were recorded in the regions 400 – 3500 cm-1 and 200 – 3500 cm-1 respectively. The observed vibrational numbers were analysed and assigned to different normal modes of vibration of ...Read more
Author:Blitz, JG; Uys, JM; Petrick, AJDate:1950The introduction of oil mixtures for impregnating timber in which penta-chloro-phenol is the active medium and kerosene the major vehicle component caused some apprehensive that explosive mixtures might be formed in the impregnation vessels.Read more
Author:Seerane, MN; Chikwanda, HK; Focke, W; Machaka, RonaldDate:Oct 2013Powder loading is one of the most critical factors in metal injection moulding (MIM) technology. It largely determines the success or failure of the subsequent MIM processes. A gas-atomized Ti6Al4V powder was investigated to determine an ...Read more
Author:Hoosain, SE; Tshabalala, Lerato C; Skhosana, Besabakhe S; Freemantle, C; Mndebele, NDate:Nov 2021One of the main considerations in adopting the additive manufacturing (AM) technology is whether the material properties of the AM-produced part are comparable with the wrought material. This study compared the properties of AM-produced 304 ...Read more
Author:Moller, H; Govender, G; Stumpf, WEDate:2008The heat treatment cycles that are currently applied to semi-solid processed components are mostly those that are in use for dendritic casting alloys. These heat treatments are not necessarily the optimum treatments. It is shown that a decrease ...Read more
Author:Raganya, Mampai L; Moshokoa, Nthabiseng; Obadele, BA; Olubambi, PA; Machaka, RonaldDate:2020Extensive efforts have been undertaken to develop Ti alloys consisting of single ß phase in order to substitute the a + ß phase in Ti-6Al-4V used as biomaterials. This study was aimed at investigating the tensile properties of solution treated ...Read more
Author:Anochie-Boateng, Joseph; George, Theresa BDate:Jun 2017Recent study at the Council for Scientific and Industrial Research in South Africa has revealed the potential to substitute depleting natural aggregates with waste crushed glass in asphalt mixes. This paper presents an investigation of the ...Read more
Author:Lekoadi, Paul M; Tlotleng, Monnamme; Siyasiya, Charles; Masina, Bathusile NDate:Nov 2023This study presents the investigation of TiB distribution characteristics on the microstructure of in-situ synthesized TiB/Ti6Al4V single-track composites manufacture with laser metal deposition. Ti6Al4V alloy was reinforced by adding TiB2 ...Read more
Author:Wolff, WTEDate:1975The settling rate of dense-medium suspensions of three different magnetite ore samples was investigated. The result of the investigation indicates that the settling rate increases with (i) the increase in temperature of the suspension and 9 ...Read more
Author:Adeniran, A; Motsatsi, Lorato L; Mbanga, S; Ayesu-Koranteng, E; Shakantu, WDate:2022Solid waste is a global challenge that is more pronounced in developing countries such as South Africa, where its management is a major concern. The government has recently made a concerted effort to engage the public in sustainable waste ...Read morecbna
Author:Lekoadi, Paul M; Tlotleng, Monnamme; Siyasiya, CW; Masina, Bathusile NDate:May 2023This work presents the microstructural investigation of an in situ synthesized TiB/Ti6Al4V-ELI composite that was manufactured with additive manufacturing (AM) technique known as laser metal deposition (LMD). A single-track sample was ...Read more
Author:Badou, DF; Afouda, A; Diekkruger, B; Kapangaziwiri, EvisonDate:Jul 2015West Africa has experienced severe droughts during 1970s and 1980s. On the other hand, the region is characterized by high inter-annual rainfall variability and there seems to be a recent recovery. But has the drought stopped? To answer this ...Read more
Author:Hibbert, ADate:1968From observations made during investigations with the D.S.M cyclone there was reason to believe that the cut point with a given feed was liable to change depending on whether the feed was we or dry-screened immediately before washing.Read more
Author:Watson, BP; Mosomane, SM; Kuijpers, JS; Roberts, David PDate:Aug 2008The first crush pillars on the Bushveld platinum mines were introduced at Union Section in 1978. Before the introduction of crush pillars, serious problems were experienced when stoping advanced to a point 30 m to 40 m on both sides of the ...Read more