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Step structure of GaInAsSb grown by OMVPE (Organometallic Vapor Phase Epitaxy)

Description: The microscopic surface morphology of GaInAsSb grown by organometallic vapor phase epitaxy (OMVPE)on GaSb substrates has been studied by atomic force microscopy. The effects of growth temperature, alloy composition, and substrate misorientation on the step structure were investigated. The competition between thermodynamically driven phase separation and kinetically limited surface diffusion is discussed.
Date: May 23, 1999
Creator: Charache, G.W. & Wang, C.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

X-Ray Scattering Applications Using Pulsed X-Ray Sources

Description: Pulsed x-ray sources have been used in transient structural phenomena investigations for over fifty years; however, until the advent of synchrotrons sources and the development of table-top picosecond lasers, general access to ligh temporal resolution x-ray diffraction was relatively limited. Advances in diffraction techniques, sample excitation schemes, and detector systems, in addition to IncEased access to pulsed sources, have ld tO what is now a diverse and growing array of pulsed-source me… more
Date: May 23, 1999
Creator: Larson, B.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization and Process Development of Cyanate Ester Resin Composites

Description: Cyanate ester resins offer advantages as composite matrices because of their high thermal stability, low outgassing, low water absorption, and radiation resistance. This paper describes the results of a processing study to develop a high-strength hoop-wound composite by the wet-filament winding method using Toray TI 000G carbon fiber and YLA RS- 14A cyanate ester resin as the constituent materials. The study shows that the cyanate ester resin has a broad process envelope but that an inert-atmos… more
Date: May 23, 1999
Creator: Frame, B.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fiber-Matrix Interface Studies on Electron Beam Cured Composites

Description: The recently completed Department of Energy (DOE) and industry sponsored Cooperative Research and Development Agreement (CRADA) entitled, ''Electron Beam Curing of Polymer Matrix Composites,'' determined that the interlaminar shear strength properties of the best electron beam cured IM7/epoxy composites were 19-28% lower than autoclave cured IM7/epoxy composites (i.e. IM7/977-2 and IM7/977-3). Low interlaminar shear strength is widely acknowledged as the key barrier to the successful acceptance… more
Date: May 23, 1999
Creator: Drazel, L. T.; Janke, C. J. & Yarborough, K. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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