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NRC, DOE update MOU
The Nuclear Regulatory Commission and the Department of Energy have updated a 2019 memorandum of understanding to coordinate on the review of advanced nuclear reactors and advanced reactor fuel technologies.
T. Schober, H. Conrads, Armin Schulz
Fusion Science and Technology | Volume 23 | Number 2 | March 1993 | Pages 227-229
Technical Note | Materials Engineering | doi.org/10.13182/FST93-A30150
Articles are hosted by Taylor and Francis Online.
Niobium deuteride samples are exposed to vacuum sparks with plasma temperatures exceeding 10 keV and a density of >1023 cm−3. An investigation of the surfaces of the niobium deuteride samples by scanning electron microscopy reveals clear signs of surface melting, orifices, bubbles, blisters, and cracks. The surface features are explained in terms of a very high vapor pressure of deuterium forming in niobium at temperatures near its melting point. Vacuum sparks touching the surfaces for ∼1 µs may expel most of the deuterium from the surface region.
