Sintered nanostructured alloys for advanced fusion energy applications

D. J. Sprouster, J. Gentile, M. Ouyang, C. Killeen, J. R. Trelewicz, W. Zhong, Y. Yang, D. Bhardwaj, W. S. Cunningham, M. M.A. Shawon, B. Cheng, D. Olds, H. Yan, A. Pattammattel, L. Tan, L. L. Snead

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We describe our recent efforts demonstrating direct current sintering parameters appropriate to mimic near-identical microstructure to optimize reduced activation ferritic martensitic “castable nanostructured alloy”. The fabrication process is presented, and through a combination of computational thermodynamics, multimodal characterization, and mechanical testing we confirm that sintering may be used to produce relevant castable nanostructured alloy (CNA). Our success in demonstrating the applicability of sintering to CNA fabrication opens the opportunity to fabricate functionally graded first wall tile structures or other complicated structures with demanding high-temperature performance, as example fusion high heat flux components.

Original languageEnglish
Article number154683
JournalJournal of Nuclear Materials
Volume586
DOIs
StatePublished - Dec 1 2023

Funding

These experiments and analysis were supported by the U.S. Department of Energy Office of Fusion Energy Sciences under contract DE-SC0018322 with the Research Foundation for the State University of New York at Stony Brook and DE-AC05–00OR22725 with UT-Battelle LLC. Use of the National Synchrotron Light Source-II, Brookhaven National Laboratory, was supported by the U.S. Department of Energy under Contract no. DE-SC0012704 . This research used resources of the Center for Functional Nanomaterials, which is a U.S. Department of Energy Office of Science Facility, at Brookhaven National Laboratory under Contract No. DE-SC0012704 .

Keywords

  • Castable nanostructured alloys
  • Computational thermodynamics
  • Direct current sintering
  • Multimodal characterization

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