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Thermal conductivit...
Thermal conductivity of copper under high pressure
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- Sundqvist, Bertil (författare)
- Umeå universitet,Institutionen för fysik
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- Bäckström, Gunnar (författare)
- Umeå universitet,Institutionen för fysik
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(creator_code:org_t)
- London : Pion Ltd, 1977
- 1977
- Engelska.
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Ingår i: High Temperatures-High Pressures. - London : Pion Ltd. - 0018-1544 .- 1472-3441. ; 9:1, s. 41-48
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- The thermal diffusivity, a, of copper has been measured at room temperature up to a pressure of 2.5 GPa (25 kbar) by means of a method recently developed. In this pressure range the diffusivity increases linearly with a slope of (1/a)da/dp = 2.7x10-2 GPa-1. As the density and specific heat of copper are known as functions of pressure, this result can be used to obtain the pressure dependence of the thermal conductivity, lambda, with the result (1/lambda)d(lambda)/dp = 3.1x10-2 GPa-1. This value is shown to agree well with theoretical calculations of this slope. However, a comparison between this result and the pressure dependence of the electrical conductivity shows deviations from the Wiedemann-Franz law.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Thermal diffusivity
- thermal conductivity
- Ångström's method
- high pressure
- Cu
- copper
- Condensed matter physics
- Kondenserade materiens fysik
- fysik
- Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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