Results 111 to 120 of about 8,844 (222)

Some NASA contributions to the use of plasma jet technology in chemical processing [PDF]

open access: yes
NASA contributions to use of plasma jet technology in chemical ...
Ludwig, H. C.
core   +1 more source

Feasibility of remotely manipulated welding in space. A step in the development of novel joining technologies [PDF]

open access: yes
In order to establish permanent human presence in space technologies of constructing and repairing space stations and other space structures must be developed.
Agapakis, J. E.   +3 more
core   +1 more source

Electrical termination techniques [PDF]

open access: yes
A technical review of high reliability electrical terminations for electronic equipment was made. Seven techniques were selected from this review for further investigation, experimental work, and preliminary testing.
Oakey, W. E., Schleicher, R. R.
core   +1 more source

The keyhole region in VPPA welds [PDF]

open access: yes
The morphology and properties of the Variable Polarity Plasma Arc (VPPA) weld composite zone are intimately related to the physical processes associated with the keyhole.
Walsh, Daniel W.
core   +1 more source

VPPA weld model evaluation [PDF]

open access: yes
NASA uses the Variable Polarity Plasma Arc Welding (VPPAW) process extensively for fabrication of Space Shuttle External Tanks. This welding process has been in use at NASA since the late 1970's but the physics of the process have never been ...
Gordon, Stephen S.   +2 more
core   +1 more source

Composite Alloying of Metal Surface by Plasma Transferred Arc Welding Process.

open access: yesBulletin of the Japan Institute of Metals, 1992
Tomoki Tomita   +2 more
openaire   +2 more sources

Individual Effects of Alkali Element and Wire Structure on Metal Transfer Process in Argon Metal-Cored Arc Welding. [PDF]

open access: yesMaterials (Basel), 2023
Bui HV   +8 more
europepmc   +1 more source

Lithium and potassium heat pipes for thermionic converters [PDF]

open access: yes
A prototypic heat pipe system for an out-of-core thermionic reactor was built and tested. The emitter of the concentric thermionic converter consists of the condenser of a tungsten heat pipe utilizing a lithium working fluid.
Kroeger, E. W., Miskolczy, G.
core   +1 more source

High energy density capacitors for vacuum operation with a pulsed plasma load [PDF]

open access: yes
Results of the effort of designing, fabricating, and testing of a 40 joules/lb (88.2 joules/Kg) high voltage energy storage capacitor suitable for operating a pulsed plasma thruster in a vacuum environment for millions of pulses are presented.
Guman, W. J.
core   +1 more source

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