An overview of NASA's projected mission requirements for space nuclear systems

Bennett, Gary L.; Pilcher, C. B.; Smith, William; Stetson, Douglas

doi:10.1016/0094-5765(94)90237-2

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Cited by 6 publications

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“…One possibility proposed in current and previous program plans is fission reactors (Bennett, 1994). One possibility proposed in current and previous program plans is fission reactors (Bennett, 1994).…”

Section: Introductionmentioning

confidence: 99%

Environmental Resistance in the Mars Atmosphere

Pint¹,

Tortorelli²

2005

AIP Conference Proceedings

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The atmosphere of Mars is ~6mbar of total pressure (compared to ~1 bar on Earth) and 95%CO 2 . Thermodynamic calculations have been made of the partial pressure of oxygen as a function of temperature assuming various impurities in the remaining 5%. These oxygen pressures are sufficient to oxidize most common metals in the 900-1300K range. Therefore, oxidation resistance will be a concern for materials of construction in a high temperature fission reactor on Mars. An additional environmental resistance consideration is internal carburization during exposures in CO 2 . The effect of low pressure CO 2 exposures on the mechanical properties of austenitic alloys is being investigated.

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Section: Introductionmentioning

confidence: 99%