SEARCH · Engineering Papers
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.
Viscosity, electric resistivity, and Youngs modulus measurements of glass compositions for crystallization kinetics of oxide systems
Transition temperature, critical fields, electrical resistivities and crystalline structures of technetium-tungsten alloys
Heat sinks in electronic packaging can be flame sprayed with dielectric coatings of alumina or beryllia and finished off with an organic sealer to provide high heat and electrical resistivity.
Coating for electronic components used in space applications has bacteriostatic qualities capable of hindering bacterial reproduction, both vegetative and sporulative viable microorganisms. It exhibits high electrical resistivity, a low outgassing rate, and is capable of restraining electronic components when subjected to mechanical vibrations.
High amplitude square shaped shock waves in solid propellants, discussing shock wave generation by impact experiment and electrical resistance gage measurement
Hall coefficient and electrical resistivity of tantalum carbide as function of carbon content and temperature
Study investigated the behavior of density waves propagating vertically in an atmospheric pressure air-water system using a technique based on the correlation between density change and electric resistivity. This information is of interest to industries working with heat transfer systems and fluid power and control systems.
Electrical resistance of a carbon-pile resistor is controlled by the compression or relaxation of a pile of carbon disks by a thermally actuated bimetallic spring. The concept is advantageous in that it is direct-acting, can cover a wide range of controllable characteristics, and can handle considerable power directly.
New polymeric material exhibits excellent physical shock protection, high electrical resistance, and thermal conductivity. It is especially useful for electronic circuitry, such as subminiaturization of components and modular construction of circuits.
Series of measurements on the thermal expansion coefficients of several aerospace alloys and standard materials establish relationships between related alloys that would aid in predicting their thermal expansion reliability. Thermal expansion data are also necessary for the reduction of electrical resistivity measurements of those same materials.
Interfacial adhesion force produced by contact under axial loads of Cu and Ni surfaces in high vacuum related to electrical resistance and plastic strain
Polyethylene film grafts, grafting solution properties, and effects on electrical resistance
Polyacrylic acid effect on grafted polyethylene film in electrical resistance and ion migration
Experimental measurements of thermal conductivity, electrical resistivity, and specific heat with hot pressed beryllium specimens
Granite compressional wave velocity and electrical resistivity variations with depth, explaining discrepancy between in situ and laboratory measurements on dry samples
Vapor phase epitaxial production of indium arsenic phosphide crystalline layers, discussing electron mobilities, electrical resistivities and doping
Mechanical properties associated with 55-Nitinol memory effect, presenting stress-strain and electrical resistivity as function of temperature
Device determines velocity and electrical conductivity of a moving fluid of high electrical resistance by imposing a transverse electro-quasistatic field on the fluid. Position changes of charge accumulations induced within the fluid by the field are sensed by relative movement between fluid and sensor.