Electrochemical techniques in corrosion analysis provide data complementary to coupon and salt spray tests which are less than effective for short-term diagnosis. Corrosion rates and charge transfer properties of an electrochemical system can rapidly be predicted from impedance data and potentiodynamic techniques.
Corrosion rate depends primarily on factors relating to the electrochemical reaction, temperature, electrode material, surface area and chemical environment.
Two phenomena control the reaction rate: charge transfer (activation energy) and mass transfer effects. The ability to transfer charge controls the magnitude and nature of the corrosion reaction. Mass transfer is the ability of the electrolyte to diffuse from the bulk electrolyte to the electrode surface. Impedance analysis enables the user to compare different corroding systems and the effectiveness of corrosion inhibitors and barrier coatings. By analyzing a system's charge transfer properties, comparative data on electrical conductivity can also be obtained. A variety of electrochemical analysis techniques are available including linear polarisation resistance (LPR), electrochemical noise (ECN), harmonic analysis and electrochemical impedance spectroscopy (EIS). Each of these can provide valuable data that when used effectively minimises product corrosion.
Potentiostats
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1287A Potentiostat
The Solartron 1287A Potentiostat is a research grade, high accuracy, wide bandwidth potentiostat/galvanostat that offers a full range of DC capabilities. When coupled with a frequency response analyzer (FRA), the 1287A Potentiostat offers the scientist AC impedance capabilities unrivalled in the marketplace. |
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1285A Potentiostat
The Solartron 1285A electrochemical interface is a high accuracy, potentiostat/galvanostat that offers a full range of DC capabilities including cyclic voltammetry, electrochemical noise and galvanostatic experiments. |
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1280Z Electrochemical System
The Solartron 1280Z Electrochemical Test System offers a cost-effective, wide bandwidth potentiostat/galvanostat and frequency response analyzer (FRA) in a single compact unit. |
Frequency Response Analyzers/Impedance Analyzers
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1260A Impedance/Gain-Phase Analyzer
The 1260A Impedance/Gain-phase Analyzer is without doubt the most powerful, accurate and flexible frequency response analyzer (FRA) available today. Two or four electrode impedance measurements can be performed in stand-alone mode making the 1260A the ideal choice for general materials characterization. |
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1252A Frequency Response Analyzer
Using the single sine correlation technique (SSC), the 1252A provides precise measurement of gain and phase between any two points in a system. This fully digital technique is used to assess performance of both simple and complex systems - mechanical, electronic and electrochemical. |
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1255A Frequency Response Analyzer
The 1255A Frequency Response Analyzer is ideally suited to a wide variety of applications in the fields of electronics and the analysis of electrochemical/biological phenomena. |
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1255B Frequency Response Analyzer
The 1255B Frequency Response Analyzer is one of a range of instruments that will meet your needs today and in the future. This frequency response analyzer is capable of operating in stand-alone mode, suitable for testing amplifiers, filters and switch mode power supplies (SMPS). |
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1253A Frequency Response Analyzer
The 1253A Frequency Response Analyzer (FRA) is an instrument that is capable of meeting today's measurement requirements for dynamic system analysis. Using the single sine correlation technique (SSC), it provides precise data relating to the gain and phase between any points in a dynamic system. |
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1250 Frequency Response Analyzer
The 1250 series of frequency response analyzers (FRAs) provide a range of accurate solutions for the measurement of gain, phase and AC impedance (when coupled with a suitable AC impedance interface). |
Multiplexers
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1281 Multiplexer
The model 1281 is a computer-controlled multiplexer with eight channels for use with a Solartron potentiostat/galvanostat e.g. 1280/1285A/1286 or 1287A. It can sequence a potentiostat to any of eight different test cells for high performance multichannel testing and automated monitoring. |
Multichannel Potentiostats/Multistats
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Solartron CellTest® System
The 1470E multi-channel potentiostat has been specifically designed to meet the requirements of electrochemists and material scientists to enable the rapid generation of high quality, accurate and repeatable data. The 1470E is ideal for research, development and quality assurance of new sensors, corrosion/coatings, battery materials and fuel cells. Coupled with a Solartron 145x series frequency response analyzer (FRA), the 1470E becomes the most powerful multi-channel potentiostat with impedance capability on the market today. |
Software
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Zplot & CorrWare Software
CorrWare and ZPlot software packages provide the most comprehensive range of control, measurement and analysis facilities for electrochemical research. ZPlot and CorrWare are available separately or as a fully integrated package, enabling you to combine impedance measurements with conventional DC electrochemical techniques. |
