Mesure De La Resistance De Polarisation Au Moyen De Deux Electrodes Identiques

The purpose of the paper is the derivation of the equation between potential difference and current density around the corrosion potential in the case of two identical corroding metallic electrodes without reference electrode. The main polarization types (activation and/or concentration) likely to be encountered in practice, were considered.It was possible to establish that, in all cases, the derived relation was practically linear in a relatively large overpotential range.     

Staining of biological material for the scanning electron microscope

A histochemical technique has been used in scanning electron microscopy to localize specific areas in biological material. The specific contrast introduced by the staining procedure depends on the interaction of complex variables such as the coating material, the accelerating voltage and the use of a primary or secondary electron signal.