Specific heat of solids at high pressures from simultaneous measurements of thermal conductivity and diffusivity

• A method of determining the specific heat of solids at high pressures, from simultaneous measurements of thermal conductivity and diffusivity in a cylindrical geometry, is described. Results are reported for polytetrafluoroethylene (Teflon) in the range 0-30 kbar at 300 K. With increasing pressure both the thermal conductivity and diffusivity increase strongly and approximately linearly, while the specific heat decreases, most strongly at low pressures.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

Specific heat

thermal conductivity

thermal diffusivity

PTFE

Teflon

high pressure

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)