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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.

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Ion implantation damage effects in silicon

Ion implantation lattice damage effects in crystalline silicon with allowance for optical reflectivity, considering annealing temperature and amorphous layer formation

Eberle, D. E.

Electron beam recrystallization of amorphous semiconductor materials

Nucleation and growth of crystalline films of silicon, germanium, and cadmium sulfide on substrates of plastic and glass were investigated. Amorphous films of germanium, silicon, and cadmium sulfide on amorphous substrates of glass and plastic were converted to the crystalline condition by electron bombardment.

Evans, J. C., Jr.

O-18/O-16 and Si-30/Si-28 studies of some Apollo 15, 16, and 17 samples

A study of lunar rock samples from eight sites on the near side of the moon showed oxygen isotope abundance variations much smaller than those in meteorites and earth material. The grain-surface coatings of the lunar fines were found to be generally depleted in oxygen relative to silicon. The lunar soils, on the other hand, were somewhat richer in both O18 and Si30 than the lunar crystalline rock.

Taylor, H. P., Jr.