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Simulated scratch cell

A simple cell, termed the simulated scratch cell, has been devised that can check for the key elements in the self-healing of CCCs (59). This cell, shown in Fig. 19, consists of two metal surfaces, normally several square centimeters in area, opposing one another and separated by several millimeters. One metal surface is conversion coated, while the other is left bare to simulate a defect or... [Pg.285]

Figure 19 (a) Cross section schematic of the simulated scratch cell, (b) Photograph of... [Pg.287]

Figure 20 Coating resistance versus time for bare 2024-T3 surfaces exposed to Ce sealed hydrotalcite, a Ce(III) conversion coating, and bare 2024-T3 in the simulated scratch cell. Rc was determined ex situ during immersion in 0.05 M NaCl solution. The plot indicates an elevated resistance to corrosion for the sample exposed to the Ce sealed hydrotalcite coating. (From S. B. Mamidipally, P. Schmutz, R. G. Buchheit. Corrosion, 58, 3, 2001.)... Figure 20 Coating resistance versus time for bare 2024-T3 surfaces exposed to Ce sealed hydrotalcite, a Ce(III) conversion coating, and bare 2024-T3 in the simulated scratch cell. Rc was determined ex situ during immersion in 0.05 M NaCl solution. The plot indicates an elevated resistance to corrosion for the sample exposed to the Ce sealed hydrotalcite coating. (From S. B. Mamidipally, P. Schmutz, R. G. Buchheit. Corrosion, 58, 3, 2001.)...
See other pages where Simulated scratch cell is mentioned: [Pg.287]    [Pg.293]    [Pg.59]    [Pg.287]    [Pg.293]    [Pg.59]    [Pg.148]    [Pg.493]    [Pg.2133]    [Pg.181]   
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