In a Bureau of Mines study, the thermal conductivity of several iron aluminide alloys was determined as a function of temperature. Four point electrical resistivity data were used in conjunction with the Wiedemann-Franz-Lorenz equation to determine the thermal conductivity of Fe3Al. An identical sample of iron, along with literature data, was used to verify the accuracy of the method. The results indicate that the thermal conductivity of Fe3Al alloys is independent of composition and increases linearly as a function of temperature.
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