Dielectric formulations for use in processing screened ceramic microcircuit substrates.
Material formulation, processing and firing techniques for screened ceramic microcircuit capacitors and conductor crossovers
DIELECTRICS↗
SEARCH · Engineering Papers
Results for “conductor”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Feed-through has polyterminal feature
Feed-through connector with individual solder pots in the polyterminal side provides good connections with small amounts of solder and permits visual inspection of bonds. Polyterminal also provides a friction mechanical bond to position conductors prior to soldering.
Sanders, L. H.↗
Carbon-arc rod holder has long life, reduces arc splatter
Carbon-arc rod holder with front end of beryllium oxide, a high electrical resistor and good thermal conductor, prevents nonuniform burning of the positive carbon rod and corrosion of the rod holder.
Source record↗
Laser beam transmits electric power
Semiconductor laser beam supplies sustained level of electrical power to remote location not served by conventional conductors. This system would be useful where transmission of energy is critical, such as in nuclear reactors, or other hazardous environments.
Source record↗
High temperature thermocouple research and development program summary report
High temperature thermocouple research and development program - thermocouples with thermochemically formed tungsten sheath and tungsten rhenium center conductor
THERMOCOUPLE↗
Wet electric faults. i - dendrites.
Metal electrode dendrites from electrochemical reaction between conductors bridged by water and impressed voltage
ELECTROCHEMISTRY↗
Metal boot permits fabrication of hermetically sealed splices in metal sheathed instrumentation cables
Metal boot splices hard sheathed instrumentation cables used with high temperature strain gages and thermocouples. Silver brazing the conductors together, hermetically seals the splice. This boot is a highly reliable sealed splice which is equally effective at cryogenic temperatures, high temperatures, nuclear environments, and combinations of the above.
Chambers, G.↗
Some unique applications of intense magnetic fields
A brief history of our knowledge of ordinary magnetism and electromagnetism is given, from the time of the Roman poet, Lucretius Carus, to the present. Practical examples of magnetic field strength associated with objects familiar to all are discussed, and a frame of reference regarding magnetic field strength is thereby established. The earliest known investigators of intense transient magnetic field manipulation of solid conductor materials are mentioned, and the phenomena described. Systems, apparatus, and basic theory of operation are detailed. The importance of adequate diagnostics is discussed, and some techniques employed are illustrated. The "magnetic sawing" phenomenon is described, and implications explained. Typical applications are shown, including swaging, sizing, sealing. clamping, forming, and other unique neoterisms. A particularly successful application, the magnetomotive sizer, is described in detail, and beneficial application in the Saturn V program is described. Potential industrial applications are prognosticated, and developmental trends are indicated.
Electromagnetic field↗
Propellant injection into a coaxial plasma accelerator.
Two propellant injector designs for plasma accelerators that minimize or avoid bearing seal difficulty, using piezoelectric element and pulsed vaporization of filament of liquid conductor
VAPORIZATION↗
Reparable, high-density microelectronic module provides effective heat sink
Reparable modular system is used for packaging microelectronic flat packs and miniature discrete components. This three-dimensional compartmented structure incorporates etched phosphor bronze sheets and frames with etched wire conductors. It provides an effective heat sink for electric power dissipation in the absence of convective cooling means.
Carlson, K. J.↗
Protected, high-temperature connecting cable
Ceramic insulated, swaged stainless steel, sheathed, protective atmosphere cable admits electrical leads into an 1800 deg F air-environment test chamber. The cable has some bending capability and provides for nine niobium alloy conductors. An argon purge during the TIG weld closure protects internal wires from oxidation and embrittlement.
Engdahl, R. E.↗
Double copper sheath multiconductor instrumentation cable is durable and easily installed in high thermal or nuclear radiation area
Multiconductor instrumentation cable in which the conducting wires are routed through two concentric copper tube sheaths, employing a compressed insulator between the conductors and between the inner and outer sheaths, is durable and easily installed in high thermal or nuclear radiation area. The double sheath is a barrier against moisture, abrasion, and vibration.
Mc Crae, A. W., Jr.↗
Areas of irregular, discontinuous patterns rapidly and accurately measured
Simple, rapid method measures the surface area of a pattern such as comprised by the conductors on a printed circuit board. A negative or positive film of the circuit layout is placed over a uniformly illuminated translucent surface and the proportion of light transmitted to silicon solar cells is determined.
Munford, J. A.↗
Topographic simulation as an aid to printed circuit board design
Topographic simulation scheme used to program path layout of conductors in printed circuit board design
CIRCUIT BOARD↗
Cutoff frequencies of eccentric waveguides.
Point matching method, solving boundary value problem in uniform cylindrical waveguide with inserted conductor within conducting tube
CYLINDRICAL SHELL↗
Inspection criteria ensure quality control of parallel gap soldering
Investigation of parallel gap soldering of electrical leads resulted in recommendation on material preparation, equipment, process control, and visual inspection criteria to ensure reliable solder joints. The recommendations will minimize problems in heat-dwell time, amount of solder, bridging conductors, and damage of circuitry.
Burka, J. A.↗
Concept to convert electrical power
Moving fluid conductor transforms electrical power from one voltage to another. The electrically conductive fluid acts as a coupling medium between or among multiple electromagnetic fields producing the conversion.
Ratti, N.↗
Rating of electrical wires in vacuum environments
Electric conductors used in vacuum environments have smaller cross sections. This report provides data on the correct size wire for a required current load in free-air, low-pressure oxygen, and vacuum environments.
Schaefer, J. L.↗