On the Effect of Electrode Temperature on Spark Discharge-2:Pure Gold Electrode and Pure Silver Electrode

概要

論文の詳細を見る
This work presents the influence of heating an electrode on the spark phenomenon.Pure silver electrode and pure gold electrode, which are most difficult to be oxygenized, are heated to 600°C, and changes of spectral lines intensity and erosion amount are studied.In an atmosphere of argon lines intensity and erosion amount of both sample electrodes do not change between the electrode temperature 20°C-600°C.But in an atmosphere of oxygen or air they change between the same temperature range: lines intensity of silver electrode increase abruptly near the electrode temperature 170°C and 400°C, and get maximum at 470°C, ones of gold electrode get maximum near the electrode temperature 300°C.Erosion amount increases in accordance with lines intensity.From the fact that the change of lines intensity depends on the sort of atmosphric gas, we thought that the increase of lines intensity is due to the change of surface status i.e.the change of surface status, which is caused by the reaction with atmospheric gas, accelerates the erosion rate.
社団法人日本分光学会の論文