Browsing by Author "Williams, Ryan"

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    The improvement of the wear performance of the Ti-64 alloy using the oxygen boost diffusion treatment
    (2010) Williams, Ryan; Knutsen, Robert D
    Oxygen Boost Diffusion Hardening (OBDH) is a cost effective surface modification process which can greatly improve the tribological properties of titanium components. This report deals with the oxygen diffusion treatment of Ti-6Al-4V (Ti-64), the most commonly used titanium alloy, to rank various treatment conditions based on their ability to increase the surface hardness and wear resistance. Modes of wear were evaluated using SEM micrographs and elemental analysis of worn surfaces and wear debris.
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    Mbeki's Africanism : the intellectual and political thought of Thabo Mbeki
    (2009) Williams, Ryan; Garuba, Harry; Bogues, Anthony
    This dissertation examines and analyses the intellectual and political thought of Thabo Mbeki. The study examines Mbeki’s thought throughout his political career from his political activism during the anti-apartheid movement to his rise as major leader in the ANC and the government. The thesis argues that analysing the intellectual and political thought of a practicing politician requires moving beyond conventional ideas relating to the work of political intellectuals. The thesis establishes the importance of Mbeki's political activism and political career to the content of his political thought. The study locates Mbeki' s intellectual and political thought within the body of intellectual work that forms part of history of modern African political thought. The research also establishes that Mbeki's thought cannot be located solely in one political tradition and that the movement in his political ideas corresponds to the different phases of South African political history. The thesis argues that during the struggle against apartheid Mbeki's political thought has a distinctly revolutionary Marxist character but as result of the transition to freedom there is a movement towards issues of race and culture as well as the appropriation of certain features of Marxist-Leninism in Mbeki's idea of political leadership and political practice. The thesis concludes by arguing that Mbeki's political thought is a critical contribution to the history of modern African political thought.