Author:Nuru, ZY; Khamlich, S; Roro, Kittessa T; Muller, TFG; Arendse, CJ; Maaza, MDate:Jul 2011Monodispersed spherical core-shell particles of Cr/a-Cr2O3 cermet ACG coatings investigated within this contribution could be successfully employed in thermal converters. Their selectivity depends on their chemical, physical and structural ...Read more
Author:Raganya, Mampai L; Moshokoa, Thabiseng; Machaka, Ronald; Obadele, B; Makhatha, MDate:Dec 2022Current research is focused on development of ß-type titanium alloys for biomedical applications as substitutes of the undesirable Ti6Al4V alloy. Ti6Al4V alloy has a higher elastic modulus (110 GPa) than that of the human bone (10-30 GPa) and ...Read more
Author:Aramide, B; Sadiku, R; Popoola, P; Pityana, Sisa L; Jamiru, TDate:Jan 2022The enhancement of wear performance of steel baseplate for tillage application was carried out by manufacturing vanadium-chromium carbide coatings in situ by powder infusion of high carbon ferrochrome FeCrV15 powder through laser additive ...Read more
Author:Popoola, AP; Pityana, Sisa L; Ogunmuyiwa, EDate:Oct 2010Al/TiB2 metal matrix composite (MMCs) was fabricated on aluminium AA1200 with the aim of improving the wear resistance property of the substrate. The characterization of the MMCs was carried out by Optical Microscopy (OM), Scanning Electron ...Read more
Author:Ochonogor, OF; Meacock, C; Pityana, Sisa L; Popoola, PAI; Dutta Majumder, JDate:Sep 2012Laser metal deposition (LMD) is an additive manufacturing technique whereby a stream of metal powder is consolidated by a focused laser beam on the surface of a substrate or engineering component. The interaction zone between the laser beam ...Read more
Author:Davoren, B; Sacks, N; Theron, MarithaDate:Jun 2021To assess if a WC-9.2wt%Monel 400 alloy properties could be improved using LENS, one alloy was deposited onto a heated substrate and a second alloy was subjected to laser remelting of the final deposited layer. Microstructural characterization ...Read more
Author:Banerjee, R; Ray, Suprakas S; Ghosh, AKDate:Apr 2018The present work is a novel attempt to understand the microstructure of styrene-ethylene-butylene-styrene (SEBS)/polystyrene (PS) blends not only through morphological studies, but also thermal, mechanical and rheological characterizations. ...Read more
Author:Van Rooyen, Corney; Burger, HP; Kazadi, BPDate:Aug 2006Laser cladding offers distinct advantages including low dilution, low heat input,less distortion, increased mechanical and corrosion properties excellent repeatability and control of process
parameters. Solidification of laser cladded ...Read more
Author:Ndou, N; Akinlabi, ET; Pityana, Sisa L; Shongwe, MBDate:Oct 2016The study of laser power on the deposited of Ti64l4V/W was investigated. The laser metal deposition technique has proven to be a process that is sustainable. The microstructure and microhardness properties of a Tungsten powder strengthened ...Read more
Author:Pityana, Sisa LDate:Mar 2010Laser surface alloying of A1200 aluminium alloy was carried out using a 4.4 kW Nd:YAG laser. Powder mixtures of SiC and TiC hard particles were injected into the laser generated melt pool on the aluminium substrate using a commercial powder ...Read more
Author:Tlotleng, Monnamme; Akinlabi, E; Shukla, M; Pityana, Sisa LDate:Oct 2014Hydroxyapatite (HAP) coatings on bioinert metals such as Ti–6Al–4V are necessary for biomedical applications. Together, HAP and Ti–6Al–4V are biocompatible and bioactive. The challenges of depositing HAP on Ti–6Al–4V with traditional thermal ...Read more
Author:Chakraborty, A; Singh, JK; Sen, D; Pityana, Sisa L; Manna, I; Krishna, S; Dutta Majumdar, JDate:Sep 2020This study aims at the development of composite surface on austenitic stainless (AISI 304 stainless steel) by laser surface alloying with WC and Co in the weight ratio of 4:1. Laser processing has been carried out by laser melting of sandblasted ...Read more
Author:Mtshweni, Jabu; Modiba, FSDate:Sep 2021Information and communication technologies (ICTs) have transformed almost every aspect of our lives as citizens, employees, parents, politicians, businesses, leaders, and as members of any type of a community. ICTs have demonstrated across ...Read more
Author:Mtshweni, Jabu; Modiba, FSDate:Sep 2021Information and communication technologies (ICTs) have transformed almost every aspect of our lives as citizens, employees, parents, politicians, businesses, leaders, and as members of any type of a community. ICTs have demonstrated across ...Read more
Author:Rohwer, Mark B; Modibedi, Remegia M; Ozoemena, KIDate:Feb 2015The impact of microwave irradiation on the structure and electrochemistry of monodispersed palladium nanoparticles is reported for the first time. When compared to the Pd that was not subjected to microwave treatment, the microwaved Pd ...Read more
Author:Adams, D; Malgas, GF; Smith, RD; Massia, SP; Alford, TL; Mayer, JWDate:Nov 2006A sol was spun on single crystal silicon substrates at a spin-rate of 3000–5000 rpm followed by a low temperature cure to form a stable sol–gel/ silicon structure. Good quality crystalline HA films of thickness ~300–400 nm were obtained by ...Read more
Author:Botha, GE; Oliveira, JC; Ahrné, LDate:Jan 2012Variable power programmes for microwave assisted air drying of pineapple were studied. The pineapple pieces were pre-treated by osmotic dehydration in a 55º Brix sucrose solution at 40ºC for 90 minutes. Variable power output programmes were ...Read more