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U.S. Department of Energy
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Fabrication of the 320-CM-OD all-ceramic ZT-40 torus

Conference ·
The fabrication of the ZT-40 torus, a large complex all-ceramic toroidal plasma containment vessel, is described. Several glass sealants covering the temperature range of 500 to 1300/sup 0/C, were developed and used to ''braze'' segments of the torus together, sapphire windows to the torus and the required pump-out and diagnostic parts to the ceramic vacuum vessel. Designs of window seals were developed that allowed sealing of the sapphire windows in a vertical position with minimum sealing glass flow.
Research Organization:
Los Alamos Scientific Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6196509
Report Number(s):
LA-UR-79-86; CONF-790125-5
Country of Publication:
United States
Language:
English