Monopropellant engine investigation for space shuttle reaction control system. Volume 3 : Improvement of metal foam for catalyst retention
- Apr 18, 1975.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available. and Free-to-read Unrestricted online access
- The retention of granular catalyst in a metal foam matrix was demonstrated to greatly increase the life capability of hydrazine monopropellant reactors. Since nickel foam used in previous tests was found to become degraded after long-term exposure the cause of degradation was examined and metal foams of improved durability were developed. The most durable foam developed was a rhodium-coated nickel foam. An all-platinum foam was found to be incompatible in a hot ammonia (hydrazine) environment. It is recommended to scale up the manufacturing process for the improved foam to produce samples sufficiently large for space shuttle APU gas generator testing.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19750022180., Accession ID: 75N30253., NASA-CR-144417., and REPT-75-R-460-VOL-3.
- No Copyright.
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