Heat capacity and thermal conductivity from pulsed wire probe measurements under pressure

摘要: If a metal wire immersed in an electrically insulating medium is heated by known constant power, the thermal conductivity of may be deduced from temperature variation wire. It shown that further analysis this also permits specific heat capacity or diffusivity to determined. A nickel used both as heater and sensor. The power kept electronic means, resistance measured four-probe technique. Eight values are recorded during pulse which has typical duration 1 s. This extended method been tested studying glycerol its amorphous crystalline states range 130-300K at pressures up 0.8 GPa.