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

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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 ... continued below

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Blink, J; Choi, J & Farmer, J July 9, 2007.

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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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PDF-file: 16 pages; size: 0.6 Mbytes

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  • Presented at: Materials Science & Technology 2007 Conference and Exhibition, Detroit, MI, United States, Sep 16 - Sep 20, 2007

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  • Report No.: UCRL-CONF-232603
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 920845
  • Archival Resource Key: ark:/67531/metadc893623

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  • July 9, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 2, 2016, 8:18 p.m.

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Blink, J; Choi, J & Farmer, J. Applications in the Nuclear Industry for Thermal Spray Amorphous Metal and Ceramic Coatings, article, July 9, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc893623/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.