Brazing of ceramic and graphite to metal in the fabrication of ICRF (ion cyclotron range of frequencies) antenna and feedthrough components

Conference · Wed Dec 31 23:00:00 EST 1986

OSTI ID:5795185

Schechter, D E; Sluss, F; Hoffman, D J

Fabrication of some of the more critical components of ion cyclotron range of frequencies (ICRF) antenna and feedthrough assemblies has involved the brazing of alumina ceramic and graphite to various metals. Copper end pieces have been successfully brazed to alumina cylinders for use in feedthroughs for TEXTOR and in feedthroughs and capacitors for a Tokamak Fusion Test Reactor (TFTR) antenna. Copper-plated Inconel rods and tubes have been armored with graphite for construction of Faraday shields on antennas for Doublet III-D and TFTR. Details of brazing procedures and test results, including rf performance, mechanical strength, and thermal capabilities, are presented. 14 figs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5795185
• Report Number(s): CONF-871007-33; ON: DE88001763
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
ANTENNAS
BRAZING
CAPACITORS
CARBON
CERAMICS
CYCLOTRON FREQUENCY
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
ELEMENTAL MINERALS
ELEMENTS
EQUIPMENT
FABRICATION
GRAPHITE
HEATING
HIGH-FREQUENCY HEATING
ICR HEATING
JOINING
METALS
MINERALS
NONMETALS
PLASMA HEATING
RF SYSTEMS
TESTING
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
WELDING