03-10-2004, 02:01 AM
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Amateur Metal Finisher
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Join Date: Mar 2003
Posts: 162
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From Technology of Anodising by Arthur Brace (196  :
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The pores produced in an anodic coating are in the region of 100-250 angstroms diameter (footnote: 1 angstrom = 3.397x10^-9 in.) and the wall of the oxide surrounding them is about 100-200 angstoms whilst the length of the pore is 5000 to 25000 greater than the pore diameter.
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Hope it helps!
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