Interrelation between the rate of increase of electric conductivity with temperature and specimen thickness in metallic alloys

Under conditions of normal external pressure the rate of electric resistance R growth of metat alloys depending on the temperature T in the range of above 20 deg C at different sample thickness (from 10 to 55 μm) has been studied. It is shown that there is the same effect in alloys which has been previously detected in metals: the change of resistance growth rate, if it is not conditioned by phase or other transformations in the basic structure of the alloy, is connected with the sample thickness. The temperature, corresponding to the change beginning and the temperature after which the change ends and linear dependence R(T) is established, increase considerably with the sample thickness increase. The investigation has been conducted using the alloys W-20% Re, brass L68, alumel