Characterization of Plasma Sprayed Beryllium ITER First Wall Mockups

Conference · Wed Dec 31 04:00:00 EST 1997

OSTI ID:661876

Castro, Richard G; Vaidya, Rajendra U; Hollis, Kendall J

ITER first wall beryllium mockups, which were fabricated by vacuum plasma spraying the beryllium armor, have survived 3000 thermal fatigue cycles at 1 MW/sq m without damage during high heat flux testing at the Plasma Materials Test Facility at Sandia National Laboratory in New Mexico. The thermal and mechanical properties of the plasma sprayed beryllium armor have been characterized. Results are reported on the chemical composition of the beryllium armor in the as-deposited condition, the through thickness and normal to the through thickness thermal conductivity and thermal expansion, the four-point bend flexure strength and edge-notch fracture toughness of the beryllium armor, the bond strength between the beryllium armor and the underlying heat sink material, and ultrasonic C-scans of the Be/heat sink interface.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 661876
• Report Number(s): LA-UR--97-4201; CONF-9710153--; ON: DE98003007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ADHESION
BENDING
BERYLLIUM
BONDING
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
COATINGS
COPPER
FIRST WALL
FLEXURAL STRENGTH
FRACTURE PROPERTIES
HEAT FLUX
HEAT RESISTANT MATERIALS
HEAT SINKS
INTERFACES
ITER TOKAMAK
MATERIALS
MECHANICAL PROPERTIES
PLASMA ARC SPRAYING
TEMPERATURE RANGE 0400-1000 K
TESTING
THERMAL CONDUCTIVITY
THERMAL CYCLING
THERMAL EXPANSION
THERMODYNAMIC PROPERTIES
THICKNESS
VACUUM COATING