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Browsing by Author "Chikwanda, HK"

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Phase characterisation in spark plasma sintered TiPt alloy

Author: Chikosha, S ; Mahlatji, ML ; Chikwanda, HK Date: Dec 2011 The conclusions drawn from this presentation are that Spark Plasma Sintering (SPS) of equiatomic BE TiPt powder produces fully sintered specimens, with incomplete homogenisation. There is a need for improved furnace atmosphere control so that ... Read more
Phase transformations during sintering of mechanically alloyed TiPt

Author: Nxumalo, S ; Chikwanda, HK ; Machio, Christopher N Date: Oct 2010 A TiPt alloy was produced by mechanically alloying the desired quantities of titanium and platinum. The resultant TiPt alloy powder was cold pressed to produce green bodies. Several sintering conditions were used to sinter this alloy. It was ... Read more
Separation of DR synthesized Ti-Mg Alloy by dissolution of waste by-products in acid media

Author: Mushove, T ; Chikwanda, HK ; Ndlovu, S ; Machio, Christopher N Date: Jun 2010 The objective of this work is to isolate synthesized Ti-Mg alloy powder through leaching out of MgO and any unreduced oxides of Titanium. Leaching media investigated are H2SO4, HCl and organic acids ascorbic acid/oxalic and L-cysteine /ascorbic ... Read more
Separation of DR synthesized Ti-Mg Alloy by dissolution of waste by-products in acid media

Author: Mushove, T ; Chikwanda, HK ; Ndlovu, S ; Machio, Christopher N Date: Jun 2010 The objective of this work is to isolate synthesized Ti-Mg alloy powder through leaching out of MgO and any unreduced oxides of Titanium. Leaching media investigated are H2SO4, HCl and organic acids ascorbic acid/oxalic and L-cysteine /ascorbic ... Read more
Ti-Mg alloy powder synthesis via mechanochemical reduction of TiO2 by elemental magnesium

Author: Mushove, T ; Chikwanda, HK ; Machio, Christopher N ; Ndlovu, S Date: Apr 2009 This paper reports the preliminary results of an investigation on the synthesis of a Ti-Mg alloy powder through mechanochemical processing of TiO2 and Mg powders. TiO2 was mixed with elemental Mg according to a nominal stoichiometric composition ... Read more
Ti-Pt Alloys form mechanical milling

Author: Nxumalo, S ; Chikwanda, HK ; Machio, Christopher N Date: Dec 2009 The high temperature ß-TiPt phase has been shown to undergo a martensitic transformation upon quenching to room temperature. The martensitic transformation results from a transformation of the parent B2 cubic structure to the martensitic B19 ... Read more
Use of equimolar cysteine/ascorbic acids to recover MCP synthesized Ti(Mg) alloy

Author: Mushove, T ; Chikwanda, HK ; Machio, Christopher N ; Ndlovu, S Date: Oct 2010 Dissolution of waste by-products of mechanochemical processing (MCP) synthesis of Ti(Mg) alloy, from TiO2 and 15 wt.% excess Mg, was conducted in equimolar cysteine/ascorbic acids. The synthesized alloy is inherently mixed with MgO and other ... Read more

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Browsing by Author "Chikwanda, HK"

Browsing by Author "Chikwanda, HK"

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