Browsing Engineering, Built Environment and Information Technology by Author "Ramjee, Shatish"
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Browsing Engineering, Built Environment and Information Technology by Author "Ramjee, Shatish"
Now showing items 1-15 of 15
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Focke, Walter Wilhelm; Moyo, Lumbidzani; Labuschagne, F.J.W.J. (Frederick Johannes Willem Jacobus); Hoosen, N.G.; Ramjee, Shatish; Saphiannikova, M. (Elsevier, 2014-02)Stearate intercalated layered double hydroxide was synthesized by reacting the corresponding carbonate form with a large excess of stearic acid. Thermal analysis, FTIR, XRD and SEMEDS characterization indicated the ...
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Kabong, M.A. (Mwamb); Focke, Walter Wilhelm; Du Toit, Elizabeth Louisa; Rolfes, Heidi; Ramjee, Shatish (Elsevier, 2020-01-20)Please read abstract in the article.
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Mphateng, Thabang N.; Mapossa, António Benjamim; Wesley-Smith, James; Ramjee, Shatish; Focke, Walter Wilhelm (Springer, 2022-05)This study aimed to develop cellulose-based polymer matrices as controlled release devices for plant-based insect repellents and attractants, with the aim of finding sustainable and environmentally friendly pest control ...
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Radebe, Lucky; Wesley-Smith, James; Focke, Walter Wilhelm; Ramjee, Shatish (De Gruyter, 2023-01)A novel method for the visualization and quantification of the state of dispersion of calcium carbonate particles in thin blown polymer films is described. Particle imaging was achieved by elemental mapping using energy ...
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Cameron, I.J.-P.; Ramjee, Shatish; Garbers-Craig, Andrie Mariana (Elsevier, 2023-12)The use of alternative low polycyclic aromatic hydrocarbon (PAH) binders in taphole clays is essential due to health and environmental concerns associated with PAHs. Binders that could potentially substitute for ...
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Pretorius, Christiaan C.E.; Mostert, Roelf Johannes; Ramjee, Shatish (Southern African Institute of Mining and Metallurgy, 2021-04)The study investigates the effect of prior corrosive exposure on crack growth resistance behaviour of thin sheet (3 mm thick) aluminium alloy 2024-T3 at slow strain rates. Compact tension specimens were exposed to standard ...
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Radebe, Lucky; Wesley-Smith, James; Focke, Walter Wilhelm; Ramjee, Shatish (De Gruyter, 2023-01)The effects of filler content, filler particle size and surface coating, as well as the natures of the wax and metal stearate lubricants on the properties of calcium carbonate-filled linear low-density polyethylene compounds ...
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Focke, Walter Wilhelm; Badenhorst, Heinrich; Ramjee, Shatish; Kruger, Hermanus Joachim; Van Schalkwyk, Riaan; Rand, Brian (Elsevier, 2014-07)Graphite foams were prepared from a coal tar pitch that was partially converted into mesophase. Expandable graphite was used instead of an inert gas to ‘‘foam’’ the pitch. The resulting foam was subjected to a series of ...
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Focke, Walter Wilhelm; Molefe, Dan Matlhomola; Labuschagne, F.J.W.J. (Frederick Johannes Willem Jacobus); Ramjee, Shatish (Springer, 2009-09)Hydrated filler-type flame retardants were coated with approximately a monolayer of stearic acid using a solvent technique. Compared to the uncoated powders, the BET surface area was lower, the powder packing density was ...
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Ramjee, Shatish; Rand, Brian; Focke, Walter Wilhelm (Elsevier, 2015-02)The low shear rate rheology of two phase mesophase pitches derived from coal tar pitch has been investigated. Particulate quinoline insolubles (QI) stabilised the mesophase spheres against coalescence. Viscosity measurements ...
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Ramjee, Shatish (University of Pretoria, 2008-09-23)The ageing population has become more active and live longer, these patients require hip replacement surgery at a younger age. Artificial hip implants, consisting of the acetabular cup and femoral head, affect the lives ...
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Hlatshwayo, S.R.; Focke, Walter Wilhelm; Ramjee, Shatish; Rand, Brian; Manyala, Ncholu I. (Elsevier, 2013-01)The effect of adding poly(vinyl chloride) (PVC) and coke filler on the rheological behavior and thermal properties of a coal tar pitch was investigated with a view to developing an appropriate viscoelastic binder for the ...
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Ramjee, Shatish (University of Pretoria, 2015)Pitch material is an important precursor in the production of carbon bre, carbon composites and synthetic graphite. It has a complex transformation during pyrolysis which incorporates the separation of a liquid crystalline ...
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Tewo, Robert Kimutai; Rutto, Hilary Limo; Focke, Walter Wilhelm; Ramjee, Shatish; Seodigeng, Tumisang (American Institute of Physics, 2020-11)The thermal and mechanical properties of paraffin wax, linear low-density polyethylene (LLDPE) and poly (methyl methacrylate) (PMMA) microbeads formulations were prepared via extrusion process. The blends were characterized ...
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Thermal characterisation of metal stearate lubricant mixtures for polymer compounding applications Phillips, Justin; Weldhagen, Michelle; Mhlabeni, Thobile; Radebe, Lucky; Ramjee, Shatish; Wesley-Smith, James; Atanasova, Maria T.; Focke, Walter Wilhelm (Elsevier, 2021-05)Metal stearate blends are potential lubricants and filler dispersants in polymer compounding. Therefore, the thermal phase behaviour of binary blends of calcium stearate and magnesium stearate with zinc stearate was ...
Now showing items 1-15 of 15