The Polarization Curve and Anodic Protection

Current Oscillations in Epoxy-coated Steel at Anodic Polarization

The current oscillatory behavior of epoxy-coated low carbon steel at anodic polarization was investigated in 3,5 % and 0,5 % solutions of NaCl. It was established, that the coated steel may show current oscillations at potentiostatic anodic polarization. The oscillations are of different type, period and amplitude and are more clearly expressed in 0,5 % solution. The presented results might be ...

POLARIZATION HYSTERESIS CURVE MEASUREMENT FOR AN Au/PZT/YBCO DEVICE BY DOUBLE PULSE TECHNIQUE

Polarization for Au/Pb(Zr Ti )O /YBa Cu O ferroelectric capacitor has been studied and measured by pulse method. A sequence of pulses with amplitudes varying from 0 to 10 volts in 2 volt steps is applied and a conventional polarization curve is obtained by integrating the charge flow from the polarization switching induced by the voltage ramp. A value of 25?C/cm2 is measured for the satur...

The Differentiating Polarization Curve Technique for the Tafel Parameter Estimation

An experimentally obtained polarization curve for the hydrogen evolution reaction on silver in a 0.5 mol dm−3 solution was investigated using an electrochemical curve technique named the differential polarization method (DPM). The exchange current density estimated by the Tafel extrapolation method (TEM) and the DPM were compared and assessed from points of simple and more accurate handling. It...

On the Fe Enrichment during Anodic Polarization of Mg and Its Impact on Hydrogen Evolution

Temporary Protection and Technology Choice under the Learning Curve

This paper examines the effects of temporary protection in a model of international Cournot competition under the learning curve. We show that when the protected firm can choose among multiple technologies subject to different scopes for learning, the positive relationship between current production and learning cannot be relied upon. The protection may hurt the long-run competitiveness of the ...