Materials tests and analyses of Faraday shield tubes for ICRF (ion cyclotron resonant frequency) antennas

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7029293

King, J F; Baity, F W; Hoffman, D J; Walls, J C; Taylor, D J

The ion cyclotron resonant frequency (ICRF) antennas for heating fusion plasmas require careful analysis of the materials selected for the design and the successful fabrication of high integrity braze bonds. Graphite tiles are brazed to Inconel 625 Faraday shield tubes to protect the antenna from the plasma. The bond between the graphite and Inconel tube is difficult to achieve due to the different coefficients of thermal expansion. A 2-D stress analysis showed the graphite could be bonded to Inconel with a Ag-Cu-Ti braze alloy without cracking the graphite. Brazing procedures and nondestructive examination methods have been developed for these joints. This paper presents the results of our joining development and proof testing. 2 refs., 3 figs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7029293
• Report Number(s): CONF-881031-6; ON: DE88016802
• 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
CARBON
ELECTRICAL EQUIPMENT
ELEMENTAL MINERALS
ELEMENTS
EQUIPMENT
GRAPHITE
HEATING
HIGH-FREQUENCY HEATING
ICR HEATING
MATERIALS TESTING
MINERALS
NONDESTRUCTIVE TESTING
NONMETALS
PLASMA HEATING
RF SYSTEMS
SHIELDING
STRESS ANALYSIS
TESTING