Browsing Research Articles (Chemical Engineering) by UP Author "Grobler, N.J.M. (Nicolas)"

Browsing Research Articles (Chemical Engineering) by UP Author "Grobler, N.J.M. (Nicolas)"

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  • Finite-element analysis of the effect of sheath-gas composition in an inductively-coupled plasma 
    Grobler, N.J.M. (Nicolas); Bissett, H.; Puts, Gerard Jacob; Crouse, Philippus L. (IOP Publishing, 2018)
    The sheath gas plays an important role in inductively-coupled plasmas (ICPs) in preventing thermal damage to the side wall of the torch. The sheath gas (hydrogen in our case) is more difficult to ionise than argon (the ...
  • Reaction kinetics of ZrF4 chloridation at elevated temperatures 
    Grobler, N.J.M. (Nicolas); Postma, C.J. (Catharina); Crouse, Philippus L. (Southern African Institute of Mining and Metallurgy, 2017-10)
    Zirconium metal is used in the alloy cladding of nuclear fuel rods. Necsa produces ZrF4 by reacting ammonium bifluoride with desilicated plasmadissociated zircon. The ZrF4 then undergoes a sublimation separation step to ...