陰極用ニッケル基体金属からのマグネシウムの蒸発について
1963 年 32 巻 2 号 p. 103-108
詳細
1963 年 32 巻 2 号 p. 103-108
An extensive investigation of factors affecting the evaporation of Mg from Ni core metal is carried out by the heating method in high vacuum. The evaporation is affected not only by the quantity of Mg contained in Ni and surface treatment of the core metal, but also by the manu-facturing conditions of the core metal as regards material, deoxidization and melting atmosphere.
The evaporation of Mg from oxide coated Ni core metal depends on how the coating and evacuation are processed. If these processes remain the same, further addition of 2-4 percent W to the core metal lowers the evaporation. Such evaporation characteristics seem to relate to the chemical reaction of Mg with oxide compound, such as NiO, in the Ni core metal.
