A New Vision of Plasma Facing Components

Conference · Fri Apr 01 04:00:00 EDT 2016

DOI:https://doi.org/10.1016/j.fusengdes.2016.03.031· OSTI ID:1394193

Nygren, Richard ^[1]; Youchison, Dennis ^[1]; Wirth, Brian D. ^[2]; Snead, Lance Lewis ^[3]

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1. ORNL
2. University of Tennessee, Knoxville (UTK)
3. Independent, Knoxville

This paper advances a vision for plasma facing components (PFCs) that includes the following points. The solution for plasma facing materials likely consists of engineered structures in which the layer of plasma facing material (PFM) is integrated with an engineered structure that cools the PFM and may also transition with graded composition. The key to achieving this PFC architecture will likely lie in advanced manufacturing methods, e.g., additive manufacturing, that can produce layers with controlled porosity and features such as micro-fibers and/or nano-particles that can collect He and transmutation products, limit tritium retention, and do all this in a way that maintains adequate robustness for a satisfactory lifetime. This vision has significant implications for how we structure a development program. (C) 2016 Elsevier B.V. All rights reserved.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1394193
• Country of Publication: United States
• Language: English