NDLI: Thermophysical Properties of Platinum-Copper Alloys

Content Provider	Springer Nature Link
Author	Mehmood, Shahid Klotz, Ulrich E. Pottlacher, Gert
Copyright Year	2012
Abstract	Platinum and copper along with their alloys have been used in a broad range of applications including jewelry, coinage, electrical and electronic devices, and many others. Their thermophysical properties play an important role in casting processes and are required as input data for casting simulation. The focus of this work was to investigate these properties by different methods. Platinum, copper, and four platinum-copper alloys, namely, Pt96Cu04, Pt68Cu32, Pt50Cu50, and Pt25Cu75, were investigated within this work. The melting range and thermal expansion were measured at fem by differential scanning calorimetry and dilatometry, respectively. At TU Graz, wire-shaped samples were investigated by an ohmic pulse heating technique. This technique delivers thermophysical properties of electrically conducting materials far into the liquid phase. These measurements allow the calculation of specific heat capacity and the temperature dependencies of electrical resistivity, enthalpy, and density of these alloys in the solid and liquid phases. Thermal conductivity and thermal diffusivity as a function of temperature are estimated from resistivity data using the Wiedemann–Franz law at the end of the solid phase and at the beginning of the liquid phase. The results are compared with the available literature values.
Starting Page	5029
Ending Page	5037
Page Count	9
File Format	PDF
ISSN	10735623
Journal	Metallurgical and Materials Transactions A
Volume Number	43
Issue Number	13
e-ISSN	15431940
Language	English
Publisher	Springer US
Publisher Date	2012-10-17
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nanotechnology Structural Materials Surfaces and Interfaces, Thin Films Characterization and Evaluation of Materials Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Metals and Alloys Condensed Matter Physics

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