電解コンデンサー陽極用高純度アルミの誘電体皮膜に関する研究(第2報)
Mg,Znの影響
1955 年 1955 巻 17 号 p. 75-78
詳細
1955 年 1955 巻 17 号 p. 75-78
In the previous investigation it was found that the dielectric properties of plain high-purity aluminium foil (99.99%) were improved by the addition of small amount of Mg or Zn.
In this time, the effect of these elements on the electrostatic capacity of etched foil, which is one of the most important properties for electrolytic condenser, was investigated.
Then it was found that Mg is very effective to improve it and Zn has little effect.
In general, {110} orientation appears dominently in 99.99%Al foil with a heavy reduction.
By this investigation, it was brought to be clear that in the case of addition of Mg {100} orientation increases and {110} orientation decreases and it is hardly to find out any changes of these orientations in the case of addition of Zn.
Consequently the cause of the increase of electrostatic capacity of etched foil by addition of Mg seems to be due to the decrease of {110} orientation and to the increase of {100} orientation
