| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder brazing material which does not need an atmosphere such as high vacuum, low oxygen concentration, low dew point, a low generated gas and the like and which is excellent in oxidation resistance.SOLUTION: A powder brazing material 100 containing one or more kinds of active metals selected from among titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V) and chromium (Cr), silver (Ag) and copper (Cu) and having a layer structure of two or more layers including an active metal core 11 localized with the active metal and an outer shell layer 13, a joined body where a metal member and a member are joined by the powder brazing material and a vacuum vessel are provided.SELECTED DRAWING: Figure 1 |
