Thermal-fatigue properties of coated materials for fusion device applications

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6180856

Mullendore, A W; Whitley, J B; Mattox, D M

The adherence of plasma sprayed coatings of TiC, VC, TiB/sub 2/ and B on substrates of Cu, 316 SS, Mo, Ta and Poco AXF-5Q artificial graphite has been evaluated in a pulsed electron beam, thermal fatigue environment. The materials are candidates for application as limiter and armor components of tokamak fusion devices. Up to 500 cycles of heating at power densities of 1.5 kW/cm/sup 2/ for 1.5 sec. were used. Materials were tested both in the as-sprayed (19 to 33% porosity) condition and after hot isostatic pressing (HIP) to increase coating density. Some (e.g. TiC on Mo and Ta) showed good survivability in both the as-sprayed and HIP densified conditions. TiB/sub 2/ on Mo and Ta and VC on Poco graphite were improved while TiC + V on Mo and Ta were degraded by the HIP treatment.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6180856
• Report Number(s): SAND-81-0230C; CONF-810831-21; ON: DE81028367
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
BEAMS
BORIDES
BORON
BORON COMPOUNDS
CARBIDES
CARBON
CARBON COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CLOSED PLASMA DEVICES
COATINGS
COPPER
CORROSION RESISTANT ALLOYS
ELECTRON BEAMS
ELEMENTS
FATIGUE
GRAPHITE
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
LEPTON BEAMS
LIMITERS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
METALS
MOLYBDENUM
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NONMETALS
PARTICLE BEAMS
REFRACTORY METALS
SEMIMETALS
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
SUBSTRATES
TANTALUM
TESTING
THERMONUCLEAR DEVICES
TITANIUM BORIDES
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TOKAMAK DEVICES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VANADIUM CARBIDES
VANADIUM COMPOUNDS