dc.contributor.advisor |
Lang, Candace |
en_ZA |
dc.contributor.author |
Smith, Ernest Gregory
|
en_ZA |
dc.date.accessioned |
2016-03-28T14:21:29Z |
|
dc.date.available |
2016-03-28T14:21:29Z |
|
dc.date.issued |
1995 |
en_ZA |
dc.identifier.citation |
Smith, E. 1995. The electrical properties of ruthenium-aluminium alloys. University of Cape Town. |
en_ZA |
dc.identifier.uri |
http://hdl.handle.net/11427/18217
|
|
dc.description.abstract |
The electrical properties of platinum, gold-palladium and a selection of alloys from the ruthenium-aluminium system have been studied at high temperatures (up to 1000°C). The majority of the ruthenium-aluminium alloy compositions studied lie near or in the ruthenium aluminide phase field. Ruthenium aluminide is a B2 structure intermetallic which is suited to high temperature applications because in addition to a high melting point (2060°C), oxidation resistance to 1200°C and high temperature strength, it is also relatively ductile at room temperature. The possibility of high temperature electrical applications required an investigation of the electrical properties of ruthenium-aluminium alloys as compared to platinum and gold-palladium. Two sets of apparatus, capable of measuring the resistivity and thermo-e.m.f to high temperatures, were constructed and used to obtain the first experimental results for the electrical properties of ruthenium-aluminium alloys. Chemical analysis of these alloys has been performed for the first time, and together with energy dispersive spectroscopy, has revealed a composition at which there is a resistivity minimum and a positive thermo-e.m.f maximum, which appears to be associated with the formation of the ordered ruthenium aluminide phase. The resistivity and the temperature dependence of resistivity of some ruthenium-aluminium alloys are similar to that of platinum, the least resistive of the three materials investigated. |
en_ZA |
dc.language.iso |
eng |
en_ZA |
dc.subject.other |
Materials Engineering |
en_ZA |
dc.subject.other |
Applied Science |
en_ZA |
dc.title |
The electrical properties of ruthenium-aluminium alloys |
en_ZA |
dc.type |
Master Thesis |
|
uct.type.publication |
Research |
en_ZA |
uct.type.resource |
Thesis
|
en_ZA |
dc.publisher.institution |
University of Cape Town |
|
dc.publisher.faculty |
Faculty of Engineering and the Built Environment |
|
dc.publisher.department |
Centre for Materials Engineering |
en_ZA |
dc.type.qualificationlevel |
Masters |
|
dc.type.qualificationname |
MSc |
en_ZA |
uct.type.filetype |
Text |
|
uct.type.filetype |
Image |
|
dc.identifier.apacitation |
Smith, E. G. (1995). <i>The electrical properties of ruthenium-aluminium alloys</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Materials Engineering. Retrieved from http://hdl.handle.net/11427/18217 |
en_ZA |
dc.identifier.chicagocitation |
Smith, Ernest Gregory. <i>"The electrical properties of ruthenium-aluminium alloys."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Materials Engineering, 1995. http://hdl.handle.net/11427/18217 |
en_ZA |
dc.identifier.vancouvercitation |
Smith EG. The electrical properties of ruthenium-aluminium alloys. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Materials Engineering, 1995 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18217 |
en_ZA |
dc.identifier.ris |
TY - Thesis / Dissertation
AU - Smith, Ernest Gregory
AB - The electrical properties of platinum, gold-palladium and a selection of alloys from the ruthenium-aluminium system have been studied at high temperatures (up to 1000°C). The majority of the ruthenium-aluminium alloy compositions studied lie near or in the ruthenium aluminide phase field. Ruthenium aluminide is a B2 structure intermetallic which is suited to high temperature applications because in addition to a high melting point (2060°C), oxidation resistance to 1200°C and high temperature strength, it is also relatively ductile at room temperature. The possibility of high temperature electrical applications required an investigation of the electrical properties of ruthenium-aluminium alloys as compared to platinum and gold-palladium. Two sets of apparatus, capable of measuring the resistivity and thermo-e.m.f to high temperatures, were constructed and used to obtain the first experimental results for the electrical properties of ruthenium-aluminium alloys. Chemical analysis of these alloys has been performed for the first time, and together with energy dispersive spectroscopy, has revealed a composition at which there is a resistivity minimum and a positive thermo-e.m.f maximum, which appears to be associated with the formation of the ordered ruthenium aluminide phase. The resistivity and the temperature dependence of resistivity of some ruthenium-aluminium alloys are similar to that of platinum, the least resistive of the three materials investigated.
DA - 1995
DB - OpenUCT
DP - University of Cape Town
LK - https://open.uct.ac.za
PB - University of Cape Town
PY - 1995
T1 - The electrical properties of ruthenium-aluminium alloys
TI - The electrical properties of ruthenium-aluminium alloys
UR - http://hdl.handle.net/11427/18217
ER -
|
en_ZA |