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.
Mechanism of the stress corrosion cracking of high-strength aluminum alloys was investigated using electrochemical, mechanical, and electron microscopic techniques. The feasibility of detecting stress corrosion damage in fabricated aluminum alloy parts by nondestructive testing was investigated using ultrasonic surface waves and eddy currents.
Electron microscope study of proton irradiated metal surfaces
Study establishes a relationship between radioresistance and the nucleolar stratification characteristics of various amoeba species. Two species of fresh water amoeba are studied with the electron microscope. The report discusses the nature of nucleolar layers and their possible relationship to the differences in radiosensitivity of the two amoeba species.
Electron microscopic studies for exobiological application
Cryo-electron microscope with high field superconducting lenses
Etched, single crystal tungsten tips spot welded on zone refined tungsten wire for improved cathode sources in high resolution electron microscopes
Electron microscopic study of deterioration in thin film tunnel cathodes
Rosette or star fracture modes from metallography, electron microscope and continuum mathematical plasticity fracture theory
Transmission electron microscope investigation of two dimensional coherent precipitate platelets in boron doped titanium carbides
Rosette or star fracture modes from metallography, electron microscope and continuum mathematical plasticity fracture theory
Work function variation with Cs layer coverage on W, Mo, Re and Ni substrates, using field electron microscopes
Nylon 66 spherulites morphology before and after cold drawing from X ray diffraction, light and electron microscopic examination
Stress corrosion cracking of high strength aluminum alloys investigated by electrochemical, mechanical, and electron microscopic techniques
Electron microscopic, fractographic, and microprobe observations of crack initiation and propagation phenomena associated with stress corrosion of aluminum alloys
Electron microscopic analysis of particles caught by sounding rockets for extraterrestrial origin
Electron microscopic examination of Thailand tektite
Electron microscopic study of deoxyribonucleic acid conformation in spinach chloroplasts
Electron microscopic study of hemagglutinin from Limulus Polyphemus