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DOE OSTI · 1818079

High Temperature Moderator Cladding Report

O'Brien, Lindsay Beth·Luther, Erik Paul
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Abstract

The hydrogen permeation system at LANL has been modified and improved to perform high temperature testing of metals and metal/ceramic samples. This will allow us to demonstrate the ability to reduce hydrogen permeation for microreactor materials. For this program, two metals have been chosen for analysis, stainless steel as a base metal and TZM based on its high temperature properties and anticipated higher H permeation resistance. Samples have been fabricated and coated with Al 2 O 3 via atomic layer deposition in order to evaluate the potential to reduce hydrogen permeation with a thin layer ceramic coating. Current efforts include literature review of systems and sample fabrication to demonstrate feasibility, future work will focus on collecting hydrogen permeation data.

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22 GENERAL STUDIES OF NUCLEAR REACTORS36 MATERIALS SCIENCE

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O'Brien, Lindsay Beth, Luther, Erik Paul. 2021-08-25. High Temperature Moderator Cladding Report. https://doi.org/10.2172/1818079

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