Monday, July 04, 2005

LATERAL SECOND ANODIZATION

For the reanodization, we implemented the experimental portion of our research. Rather than using the same stainless steel plate, we instead used a thin stainless steel wire. The diameter of the wire was measured to be 508 micrometers. The same setup was used in terms of securing the aluminum metal as before. However, for the stainless steel a new setup was necessary since the plate was now replaced with a thin wire. So, we decided to mount the wire on a plastic panel of the same proportions as the ones used to secure the aluminum metal (The matching panel sizes would help in aligning the wire with the aluminum metal). The wire was secured to its panel using hydroxyy glue. Since the design of the panel was porous, we were able to protrude a small portion of the wire through one of the holes in the panel. The wire's end was cut off close to the surface to ensure that, once combined, the stainless steel wire and the aluminum metal do not touch. The panel with the steel wire was then combined with the panels securing the aluminum metal. The "device," now different from before, was set for reanodization.
The point of using the thin wire as opposed to the plate was to see whether or not the pores would radially arrange in terms of their diameters and density. Since the cathode is much smaller this second time around, the amount of pores and their respectice diameter would theoretically decrease radially across the metal from the point where the wire is pointed. Whereas the stainless steel plate was applying a uniform amount of voltage across the aluminum metal, the wire is pointed at the center of the sample. It will be interesting to observe the results of the second anodization under the scanning electron microscope.

6 Comments:

Anonymous maziar said...

that was great
good luck

10:18 PM  
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