Applications in the Nuclear Industry for Thermal Spray Amorphous Metal and Ceramic Coatings

Blink, J.; Farmer, J.; Choi, J.; Saw, C.

doi:10.1007/s11661-009-9830-4

Applications in the Nuclear Industry for Thermal Spray Amorphous Metal and Ceramic Coatings

Conference · Fri Apr 10 04:00:00 EDT 2009 · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science

DOI:https://doi.org/10.1007/s11661-009-9830-4· OSTI ID:920845

Blink, J. ^[1]; Farmer, J. ^[1]; Choi, J. ^[2]; Saw, C. ^[1]

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Univ. of Tokyo (Japan); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Amorphous metal and ceramic thermal spray coatings have been developed that can be used to enhance the corrosion resistance of containers for the transportation, aging and disposal of spent nuclear fuel and high-level radioactive wastes. Iron-based amorphous metal formulations with chromium, molybdenum and tungsten have shown the corrosion resistance believed to be necessary for such applications. Rare earth additions enable very low critical cooling rates to be achieved. The boron content of these materials, and their stability at high neutron doses, enable them to serve as high efficiency neutron absorbers for criticality control. Ceramic coatings may provide even greater corrosion resistance for container applications, though the boron-containing amorphous metals are still favored for criticality control applications. These amorphous metal and ceramic materials have been produced as gas atomized powders and applied as near full density, non-porous coatings with the high-velocity oxy-fuel process. This paper summarizes the performance of these coatings as corrosion-resistant barriers, and as neutron absorbers. Relevant corrosion models are also discussed, as well as a cost model to quantify the economic benefits possible with these new materials.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); USDOE Office of Environmental Management (EM), Regulatory and Policy Affairs. Waste and Materials Management; Defense Advanced Research Projects Agency (DARPA)

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 920845

Report Number(s):: UCRL-CONF--232603

Conference Information:: Journal Name: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Journal Issue: 6 Journal Volume: 40

Country of Publication:: United States

Language:: English

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Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
AGING
Amorphous Metal
Applications
BORON
CERAMICS
CHROMIUM
COATINGS
CONTAINERS
CORROSION
CORROSION RESISTANCE
CRITICALITY
Coatings
ECONOMICS
HIGH-LEVEL RADIOACTIVE WASTES
Iron-Based
MOLYBDENUM
NEUTRON ABSORBERS
NEUTRONS
NUCLEAR FUELS
NUCLEAR INDUSTRY
Nuclear Criticality Safety Program (NCSP)
RARE EARTH ADDITIONS
SPENT FUELS
SPRAY COATING
TUNGSTEN

Applications in the Nuclear Industry for Thermal Spray Amorphous Metal and Ceramic Coatings

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References (17)

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