100-kW class applied-field MPD thruster component wear
Conference
·
OSTI ID:6329899
Component erosion and material deposition sites were identified and analyzed during tests of various configurations of 100 kW class, applied-field, water-cooled magnetoplasmadynamic (MPD) thrusters. Severe erosion of the cathode and the boron nitride insulator was observed for the first series of tests, which was significantly decreased by reducing the levels of propellant contamination. Severe erosion of the copper anode resulting from sputtering by the propellant was also observed. This is the first observation of this phenomenon in MPD thrusters. The anode erosion indicates that development of long life MPD thrusters requires the use of light gas propellants such as hydrogen, deuterium, or lithium.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center
- OSTI ID:
- 6329899
- Report Number(s):
- N-93-22482; NASA-TM--106023; E--7586; NAS--1.15:106023; CONF-930103--; CNN: RTOP 506-42-31
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330000* -- Advanced Propulsion Systems
36 MATERIALS SCIENCE
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALKALI METALS
ANODES
BORON COMPOUNDS
BORON NITRIDES
CATHODES
CONTAMINATION
COPPER
DEPOSITION
DEUTERIUM
ELECTRODES
ELEMENTS
ENGINES
EROSION
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPES
LIFETIME
LIGHT NUCLEI
LITHIUM
METALS
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PNICTIDES
PROPELLANTS
PROPULSION
ROCKET ENGINES
SERVICE LIFE
SPUTTERING
STABLE ISOTOPES
THRUSTERS
TRANSITION ELEMENTS
WATER
WEAR
330000* -- Advanced Propulsion Systems
36 MATERIALS SCIENCE
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALKALI METALS
ANODES
BORON COMPOUNDS
BORON NITRIDES
CATHODES
CONTAMINATION
COPPER
DEPOSITION
DEUTERIUM
ELECTRODES
ELEMENTS
ENGINES
EROSION
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPES
LIFETIME
LIGHT NUCLEI
LITHIUM
METALS
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PNICTIDES
PROPELLANTS
PROPULSION
ROCKET ENGINES
SERVICE LIFE
SPUTTERING
STABLE ISOTOPES
THRUSTERS
TRANSITION ELEMENTS
WATER
WEAR