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The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Otto Demel
Nuclear Technology | Volume 48 | Number 3 | May 1980 | Pages 298-302
Technical Paper | Material | doi.org/10.13182/NT80-A32476
Articles are hosted by Taylor and Francis Online.
A ternary 15 Cr—35 Ni—50 Fe alloy and three versions of the same base doped with niobium, titanium, or molybdenum were exposed in the temperature range from 700 to 1000°C to simulated high temperature reactor helium in two corrosion experiments that differed mainly in moisture content at the High Temperature Materials Programme in Wimborne, United Kingdom. The water level in Run B was about ten times higher than in the dryer Run A. As expected, oxides that formed during exposure in the oxidizing atmosphere of Run B were generally thicker. Thickness and structural appearance of the oxides varied between the four alloys in both runs. In electron probe microanalysis studies the oxides were found to be virtually pure chromium oxides containing no significant amounts of the additives. It is inferred that variations in thickness and structural appearance of the oxides are caused by differences in kinetics of chromium oxidation, depending on the additives.