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Sisa Pityana

Researcher at Council for Scientific and Industrial Research

Publications -  182
Citations -  2430

Sisa Pityana is an academic researcher from Council for Scientific and Industrial Research. The author has contributed to research in topics: Microstructure & Indentation hardness. The author has an hindex of 21, co-authored 161 publications receiving 1856 citations. Previous affiliations of Sisa Pityana include University of Sussex & Council of Scientific and Industrial Research.

Papers
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Proceedings Article

Functionally graded material: an overview

Rasheedat M. Mahamood, +3 more
TL;DR: An overview of fabrication processes, area of application, some recent research studies and the need to focus more research effort on improving the most promising FGM fabrication method (solid freeform SFF) is presented.
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Scanning velocity influence on microstructure, microhardness and wear resistance performance of laser deposited Ti6Al4V/TiC composite

Rasheedat M. Mahamood, +4 more
- 01 Sep 2013 - 
TL;DR: In this article, the influence of the scanning velocity on the evolving physical properties, the microstructure, microhardness and the wear resistance behavior of Ti6Al4V/TiC composite is thoroughly investigated towards achieving an effective properties control.
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Effects of Ti and TiC ceramic powder on laser-cladded Ti-6Al-4V in situ intermetallic composite

O.F. Ochonogor, +5 more
- 15 Dec 2012 - 
TL;DR: Titanium metal matrix composite (MMCs) was developed on titanium alloy (Ti-6Al-4V) substrate with the aim of improving the hardness and wear properties by laser cladding technique using a Rofin Sinar 4kW Nd: YAG laser.
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Frequency doubling in ion-implanted KTiOPO4 planar waveguides with 25 % conversion efficiency

L. Zhang, +5 more
- 15 Mar 1993 - 
TL;DR: In this article, a second-harmonic generation (SHG) was performed in ion-implanted planar waveguides in KTiOPO4 using type 2 zero order mode phase matching at a wavelength of ∼ 1.07 μm.
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Microstructures, hardness and bioactivity of hydroxyapatite coatings deposited by direct laser melting process.

Monnamme Tlotleng, +6 more
- 01 Oct 2014 - 
TL;DR: The results showed that the choice of the laser power has much influence on the evolving microstructure, the mechanical properties and the retainment of HAP on the surface of the coating, and the 750 W coating could survive long in service.