〓の相変化に伴う起電現象について (第1報)
1956 年 72 巻 820 号 p. 577-581
詳細
1956 年 72 巻 820 号 p. 577-581
We found the electrification occurring during the melting or the freezing of copper blast furnace slag.
Two iron wires as electrodes and a thermocouple were dipped into the molten slag in an iron crucible. The e. m. f. and the temperature were recorded simultaneously on a photographic paper using two galvanometers.
The e. m. f. occurred when the slag began to melt or freeze, reached to its maximum value, 0.16-0.20V, then it disappeared when the melting or the freezing was complete. The solid had generally a positive charge with respect to the melt.
