Thesis is submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the Faculty of Engineering and the Built Environment, School of Mechanical, Industrial and Aeronautical Engineering, University of the Witwatersrand, Johannesburg, 2017 / Porous structures are increasingly becoming important engineering materials
in aerospace, health, cooling of electronics, and several other areas. However,
the supply of porous structures in these areas is still not being met because
the conventional methods of manufacturing porous structures lack the modern
requirements of competitiveness, quality, and
exibility. Therefore, new meth-
ods are required. One of these methods is the cold spray technology. However,
studies do not give clear indications on how the cold spray technology could
be used to fabricate porous structures. Consequently, this thesis uses various
methods such as the control of cold spray parameters, powder mixtures, and
the integration of the cold spray with alloy-de-alloy process to investigate the
capability of cold spray technology to manufacture porous structures. The
results of this investigation proved that the cold spray technology can be used
to fabricate porous structures with varied amount of porosity for a number of
applications. / MT 2018
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:wits/oai:wiredspace.wits.ac.za:10539/24014 |
| Date | January 2017 |
| Creators | Hamweendo, Agripa |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | Online resource (xxviii, 198 leaves), application/pdf, application/pdf |
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