Electrical properties of porous oxides of alkaline-earth metals with high thermoelectric efficiency

Electrical properties of porous oxide layers investigated with the help of specially developed methods. The electrical conductivity measurements made in the wide range of electrical fields by developed pulse method. The method of thin metallic probes and measurements of their spreading resistance in o.l. used to receive the parameters of electron gas in pores. The value of electrical conductivity of contacts between small oxide grains separated from the value of electrical conductivity through electron gas in pores at high temperatures by measurements of spreading resistance and thermoemf, and their changes in magnetic field. The results of these experiments are giving and discussed below.