Speaker
Keith Smith
(Materion Beryllium and Composites Elmore, OH, United States)
Description
In its current design, the ITER fusion machine will use tens of thousands of beryllium tiles as plasma-facing components in its First Wall. S-65 is one of three grades of beryllium which has been accepted by the ITER International Organization for use in the reactor. The beryllium material for ITER has to pass through many machining and manufacturing processes after being consolidated by vacuum hot-pressing in order to be made into the tiles that will be used in the First Wall. Due to beryllium metal's inherent reactivity, pitting of the beryllium surface can occur during these processes, if it is not handled correctly. As there are many different manufacturing facilities around the world who will be producing the ITER First Wall tiles, a discussion on proper handling of beryllium through all of the tile fabrication processes will be offered. This paper will characterize the pitting that can occur and discuss its causes and the methods that can be employed to prevent it from happening.
Co-authors
Aaron Sayer
(Process Engineering, Materion Beryllium and Composites, Elmore, OH, United States)
Christopher Dorn
(Sales and Marketing, Materion Beryllium and Composites, Elmore, OH, United States)
Keith Smith
(Materion Beryllium and Composites Elmore, OH, United States)
Li Qian
(Process Engineering, Materion Beryllium and Composites, Elmore, OH, United States)
