| 摘要 |
<p>Disclosed is an end hat for magnetrons which is constituted of sintered Mo, characterized in that the surface area ranging from the surface of the sintered Mo to a depth of 100 µm therefrom has a carbon content of 30 ppm or less and the central area ranging from the thickness-direction center of the sintered Mo to distances of ±100 µm therefrom has a carbon content of 50-300 ppm. By reducing the carbon content in the surface area, long-term reliability can be improved. The end hat for magnetrons which has high long-term reliability can be produced in a high yield.</p> |
