Влияние водорода на электропроводность металлов

Abstract

Magnetic spectrometer analyzer (MSA) is used to analyze the processes of hydrogenation metals (for example, titanium and copper). Sensitivity magnetic spectrometer analyzer is determined by the depth of penetration of high frequency currents in metals, the space of the sample, and the phase shift between its resistance and reactance. Sensitivity is the ratio of (delta epsilon/epsilon)/(delta d/d), where delta epsilon/epsilon relative increase signal of MSA. The increment signal arises due to a change delta delta/delta penetration depth of the eddy current in the metal. Parameter delta d/d is the relative change in the thickness of the samples. To study the sensitivity of the spectrometer used for S parameter (delta epsilon/epsilon)/(delta S/S). These options allow you to eliminate or reduce the error in determining the conductivity. Further developed the technique of determining the sensitivity of the spectrometer to the parameter zeta that is the ratio of the thickness d of the sample to its area S. Parameter zeta permed accurately the dimensions of the metal layers. Layers are located at different depths depending and associated with the electrical part of the metal layer. Parameter beta, equal to the product of the area of the sample by the reciprocal of the penetration depth of the eddy current in the sample. If the product of these parameters beta equals 1, the eddy current penetration depth in the sample is equal to the thickness of the test sample. Relationship between the number of implanted hydrogen atoms per atom of metal and its electrical conductivity is expressed by equation. Depending on this established technique for determining the composition of titanium hydride phase at different depths of penetration as a function of eddy currents in the metal. Operating modes of the (MSA) determined by the accuracy of approximation of the size of the epsilonmetal layer, located at different depths of the sample.