Flat corrosion Cell

Flat Corrosion Cell (Non-Jacketed)

A compact, laboratory-standard flat corrosion cell for repeatable electrochemical corrosion testing on planar coupons and coated panels. The specimen is clamped behind a sealed window so only a defined geometric area is exposed to the electrolyte, enabling reliable current density calculations and consistent comparison between alloys, surface treatments, corrosion inhibitors, and electrolyte conditions. This non-jacketed configuration is ideal for ambient / room-temperature studies where a simpler setup, faster turnaround, and easy cleaning are priorities.

Working principle and measurement setup

The cell is configured for conventional three-electrode electrochemistry used in corrosion science:

• Working electrode: flat metal coupon or coated panel (clamped specimen holder with sealed exposure window)
• Reference electrode: Ag/AgCl reference electrode positioned close to the working surface
• Counter electrode: platinum mesh counter electrode to complete the circuit

A Luggin capillary (salt bridge) helps place the reference potential near the electrode surface, improving potential control and measurement quality by reducing solution resistance effects.

Typical experiments and applications

• Open Circuit Potential (OCP) monitoring
• Electrochemical Impedance Spectroscopy (EIS) for barrier/coating performance and interfacial kinetics
• Linear Polarisation Resistance (LPR) for rapid corrosion-rate screening
• Potentiodynamic / potentiostatic polarisation for passivity, breakdown and pitting tendency
• Comparative testing of alloys, coatings, surface treatments and inhibitors
  
  

Key features

• Defined exposed area for quantitative corrosion comparisons
• Clear borosilicate glass cell body for visual observation of the working surface
• Chemically resistant sealing components for stable, leak-minimised operation in common corrosion electrolytes
• Designed to pair with potentiostats/galvanostats and standard electrochemical accessories for reliable corrosion data
  
  

Included components (typical kit)

• Flat corrosion cell × 1
• Ag/AgCl reference electrode × 1
• Platinum mesh counter electrode (20 × 20 mm) × 1
• Liquid seal part × 1
• F-type intake tube × 1
• Luggin capillary (salt bridge) × 1