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Browsing by Author "Phasha, MJ"

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Link between structural and mechanical stability of fcc- and bcc-based ordered MgeLi alloys

Author: Phasha, MJ ; Ngoepe, PE ; Chauke, HR ; Pettifor, DR ; Nguyen-Mann, D Date: Jun 2010 The first principles pseudopotential calculations based on the PerdeweBurkeeErnzerhof (PBE) form of generalized gradient approximation (GGA) within density functional theory (DFT) have been utilized to investigate the structural and elastic ... Read more
Microstructure and phase transformation on milled and unmilled Ti induced by water quenching

Author: Bolokang, AS ; Phasha, MJ ; Motaung, DE ; Cummings, FR ; Muller, TFG ; Arendse, CJ Date: Oct 2014 Water quenching of unmilled Ti compact has yielded martensitic-type laths and fishbone-type twinned microstructures, with a', a'' and FCC phases induced. Upon quenching 30 h milled and (0+30) h mixed powders at 1200 °C, a', FCC, tetragonal ... Read more
Presentation - I: Electronic structure calculations of ordered cubic-based Mg-Li alloys; II: Microstructural evolution of a+ß

Author: Phasha, MJ ; Ngoepe, PE ; Pettifor, DG ; Nguyen-Mann, D ; Osawa, M ; Harada, H Date: Apr 2006 Mg alloys have, in the past decade, received revolutionary attention which emanated from the need of lightweight materials in transportation and allied industries, wherein intrinsic strength to weight ratio is of paramount importance Read more
Solution-combustion synthesized aluminium-doped spinel (LiAl(subx)Mn(sub2-x)O(sub4) as a high-performance lithium-ion battery cathode material

Author: Kebede, Mesfin A ; Phasha, MJ ; Kunjuzwa, N ; Mathe, Mahlanyane K ; Ozoemena, KI Date: Jun 2015 High-performing (LiAl(subx)Mn(sub2-x)O(sub4) (x = 0, 0.125, 0.25, 0.375, and 0.5) spinel cathode materials for lithium-ion battery were developed using a solution combustion method. The as-synthesized cathode materials have spinel cubic ... Read more
Structural and electrochemical properties of aluminium doped LiMn2O4 cathode materials for Li battery: experimental and ab initio calculations

Author: Kebede, Mesfin A ; Phasha, MJ ; Kunjuzwa, N ; Le Roux, Lukas J ; Mkhonto, D ; Ozoemena, KI ; Mathe, Mahlanyane K Date: Mar 2014 Pristine and Al-doped lithium manganese oxide (LiAlxMn2-xO4) spinel cathode materials were successfully synthesized by combustion method using urea as reducer and fuel. The structural and electrochemical properties of the as-synthesized powders ... Read more
XRD analysis and microstructure of milled and sintered V, W, C, and Co powders

Author: Bolokang, AS ; Phasha, MJ ; Oliphant, C ; Motaung, D Date: Jan 2011 In the current study, results of the milled and sintered V, W, C, Co powders are presented. Analytical techniques such as SEM equipped with EDS and XRD were used to study microstructure and phase evolution, respectively. In addition to B1 ... Read more

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Browsing by Author "Phasha, MJ"

Browsing by Author "Phasha, MJ"

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