アノードスライム層構造に関する一考察
銅陽極不働態化の研究 (第12報)
1984 年 100 巻 1156 号 p. 519-522
詳細
1984 年 100 巻 1156 号 p. 519-522
An attempt was made to find a way of expressing in a numerical fashion the average pore size that an anode slime layer has. The method involves first obtaining basic relationship between passivation time, critical current density and pore size by using so called ‘simulated aged anode’ as prepared by firmly holding an artificial slime laver (i. e. Millipore filter papers with different pore sizes 0.22-8.0μ) against the surface of a pure copper anode, and then correlating these data to those obtained for ‘real’ slime layers.
The pore size of a ‘real’ slime layer is numerically expressed by the following equation.
logW=a-blog (P. S.)
where W is the amount of slime formed, kg/t-Cu, and P. S. is the pore size, μ. The pore size so obtained does not have any academic significance; yet it seems useful enough to give a relative indication as to whether one particular slime layer inquestion is denser or more porous compared to the other, or whether the original pore size turns denser or looser when the electrolytic conditions are changed.
