Author:Raji, SA; Pityana, Sisa L; Popoola, API; Popoola, OM; Arthur, Nana KK; Tlotleng, MonnammeDate:Oct 2021In this work, the microstructure and nanoindentation hardness properties of Ti-Al-Si-xMo alloys produced through laser in-situ alloying using laser engineered net shaping (LENS) technology were investigated. The microstructures and phases ...Read more
Author:Kumar, R; Zhang, LDate:Mar 2010Whiskers were prepared from ramie fibers and were characterized using atomic force microscopy to evaluate their dimensions. SPI/whiskers composites (SW) were prepared by incorporating different weight contents (wt.%) of the whiskers into soy ...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:Tlotleng, Monnamme; Akinlabi, E; Shukla, M; Pityana, Sisa LDate:Feb 2014Bio-composite coatings of 20 wt.%, HAP and 80 wt.%, HAP were synthesized on Ti-6Al-4V substrates using LACS technique. The coatings were produced with a laser power of 2.5 kW, powder-laser spot trailing by 5 s. The coatings were analyzed for ...Read more
Author:Kesavan Pillai, Sreejarani; Moyo, Lumbidzani; Ray, Suprakas S; Scriba, Manfred RDate:Nov 2012Organically modified phyllosilicates (montmorillonite and palygorskite) using Arquad 2HT-75 surfactant were effectively synthesized utilizing a microwave irradiation technique. The microwave method was successfully used also for the surface ...Read more
Author:Kesavan Pillai, Sreejarani; Ray, SS; Scriba, Manfred R; Ojijo, Vincent O; Hato, MJDate:Jul 2013Biocomposites containing ultraviolet (UV) radiation absorbing inorganic nanofillers are of great interest in food packaging applications. The biodegradable polylactide (PLA) composite films were prepared by solvent casting method by incorporating ...Read more
Author:Ramasobane, P; Mashinini, MP; Masina, Bathusile NDate:Nov 2023This study investigated the nano mechanical properties of Ti6Al4V-ELI embraced with TiC particles, synthesized with in situ laser metal deposition technique. The 3.85% feed ratio fraction TiC/Ti6Al4V-ELI composite samples were manufactured ...Read more
Author:Focke, WW; Kruger, HJ; Mhike, W; Taute, A; Roberson, A; Ofosu, ODate:Jul 2014A novel intumescent additive was synthesized by neutralizing 3,5-diaminobenzoic acid hydrochloride salt with ammonium dihydrogen phosphate. This compound, which melts at 257 C, decomposes concurrently to release carbon dioxide gas. The flame ...Read more
Author:Anandjiwala, RDate:Oct 2012In this presentation the author presents the rationale and potential of research and product development in biocomposites in context to economic development in South Africa.Read more
Author:Kiarii, EM; Govender, Krishna; Ndungu, PG; Govender, PPDate:Jun 2018The properties of TiO(sub2)/graphene/graphene oxides are examined in this article. The review summarises the recent theoretical and experimental novel approaches in the catalytic activity of TiO2/graphene interface. Imperative results at a ...Read more
Author:Bolokang, Amogelang S; Motaung, David EDate:Apr 2019Nanocrystalline composite VO(sub)2-WO(sub)3 powder was produced via mechanical milling (MM) and annealing. SEM images showed the formation of rod-shaped and hollow-shaped like structures surrounded by nanoparticles. Transmission electron ...Read more
Author:Mngomezulu, ME; John, Maya J; Jacobs, V; Luyt, ASDate:Oct 2013The subject on flammability properties of natural fibre-reinforced biopolymer composites has not been broadly researched. This is not only evidenced by the minimal use of biopolymer composites and/or blends in different engineering areas where ...Read more
Author:Masuku, EP; Moller, H; Govender, G; Ivanchev, LHDate:Sep 2008Rheocasting of alloys A206 and A201 was investigated in this study. Conical bars with different silver contents were produced using CSIR rheoprocess technology, together with high pressure die casting. The results showed that addition of Ag ...Read more
Author:Rawal, A; Gonsalves, JWDate:2006The present work deals with the net structures, which are produced by replacing the static die (spinneret) with two concentric dies rotating in opposite directions in a melt extrusion process. These dies consist of defined number of slots ...Read more
Author:Ampofo-Anti, NDate:Dec 2013The building industry consumes 50% of the raw materials extracted from the Earth’s crust annually and also plays a leading role in environmental pollution. Replacing synthetic materials with bio-composites has been shown to yield environmental ...Read more
Author:Kiarii, EM; Govender, Krishna; Ndungu, PG; Govender, PPDate:Jul 2017Silica has been used as support material with many photocatalytic materials. In this study, silica polymorphs on graphene and epoxy graphene were studied using Density Functional Theory (DFT) to determine the interfacial and optical properties ...Read more
Author:Botha, Natasha; Coetzer, R; Inglis, HM; Labuschagne, FJWJDate:Jul 2023Polymers are used in various industrial applications due to their ease of production, light weight, and ductility. Fillers such as clays are added to polymers to improve a range of factors such as material processing, thermal properties, fire ...Read more
Author:Botha, Natasha; Coetzer, R; Inglis, HM; Labuschagne, FJWJDate:Jul 2023Polymers are used in various industrial applications due to their ease of production, light weight, and ductility. Fillers such as clays are added to polymers to improve a range of factors such as material processing, thermal properties, fire ...Read more
Author:Jayaramudu, J; Agwuncha, SC; Ray, SS; Sadik, ER; Varada Rajulu, AVDate:2015In the present work, natural Polyalthiacerasoide woven fabrics were extracted from the bark of the tree and using these woven fabrics/glass fibre as reinforcements and epoxy as matrix the hybrid composites were prepared by the hand lay-up ...Read more
Author:Madida, IG; Simo, A; Sone, B; Maity, Arjun; Kana Kana, JB; Gibaud, A; Merad, G; Thema, FT; Maaza, MDate:Sep 2014Large surface and chemically stable thermochromic composite coatings consisting of IR active sub-micron VO(sub2) particles embedded in a passive polymeric host matrix of Polyvinylphenol were synthesized by dip and spin coating process. The ...Read more