Index Catalog // ScholarsArchive@OSU

The effect of primary alpha, nickel, and chromium on the creep properties of Ti 6242Si

Creator:: Thiehsen, Kurt
Resource Type:: Masters Thesis

Thermal annealing of Mo/Si multilayers to assess the stability relevant to soft x-ray projection lithography

Creator:: Viliardos, Michael A.
Resource Type:: Masters Thesis

Microstructural and mechanisms of cyclic deformation of aluminum single crystals

Creator:: Delos-Reyes, Michael A.
Abstract:: Aluminum single crystals were cyclically deformed in single-slip at small strain amplitudes at 77 K to presaturation. The observed mechanical behavior is consistent with other recent work. The dislocation substructure was analyzed in detail. The structure can be described as consisting of dense bundles or veins of dislocation dipoles, separated...
Resource Type:: Masters Thesis

Changes in structure and stress in Mo/a-Si thin films upon annealing

Creator:: Weber, Frank John
Abstract:: The structural and stress changes in molybdenum/amorphous silicon (Mo/a-Si) EUV reflecting multilayers during annealing at 316°C were studied. The amorphous interlayers, with an Mo:Si stoichiometry of 1:2, grew during annealing. The residual stresses in each component of the multilayer also changed significantly. Through high resolution electron microscopy, selected area electron...
Resource Type:: Masters Thesis

Design of advanced aluminum silicon alloy compositions and processing

Creator:: Li, Xiao, 1963-
Abstract:: Part I discusses the development of an aluminum-magnesium-silicon alloy that may combine strength, extrudability, favorable corrosion resistance with low cost and scrap compatibility. The first part of the study determined the effects of small composition, heat treatment and mechanical processing changes on the ambient temperature tensile properties of the alloy....
Resource Type:: Dissertation

Thermal stability of surface treated zirconium

Creator:: Hayes, Troy A.
Abstract:: Zirconium press plates have been developed for the production of melamine coated particle board, using shot-peening to achieve the desired plate (and therefore coated particle board) surface texture. Service temperatures of the press plates approach 200°C. This study examined the microstructural effects of extended exposure of shot-peened zirconium to temperatures...
Resource Type:: Masters Thesis

Dwell time low cycle fatigue in Ti-6242Si

Creator:: Faber, Robyn O.
Abstract:: Dwell time low cycle fatigue (DLCF), low cycle fatigue (LCF), and creep tests were performed at ambient temperature on Ti-6Al-2Sn-4Zr-2Mo-0.1Si (Ti-6242Si). Test specimens were solution annealed at various temperatures below the beta transus to control the volume fraction of primary alpha. The influence of the changes in primary alpha phase...
Resource Type:: Masters Thesis

Ductile fracture of metals under triaxial states of stress

Creator:: Schrems, Karol Krumrey
Abstract:: Silver interlayers between maraging steel base metal were examined to evaluate mechanisms leading to ductile failure in constrained thin metals. The constraint of the maraging steel base metal during uniaxial testing of constrained thin silver results in a large hydrostatic tension component, a small von Mises effective stress, and negligible...
Resource Type:: Dissertation

Electrochemical etch characteristics of (100) silicon in tetramethyl ammonium hydroxide

Creator:: Watts, Paul E.
Abstract:: A study of potentiostatic and galvanostatic electrochemical etching of silicon in tetramethylammonium hydroxide (TMAH) has been carried out. In TMAH baths,, we find that biased (100) silicon etch rates increase 21% over OCP etch rates. For TMAH baths seasoned with silicon, biased silicon etch rates increase to 63% over those...
Resource Type:: Masters Thesis

Phase diagram, thermal stability, and high temperature oxidation of the ternary Cu-Ni-Fe system

Creator:: Gallino, Isabella
Abstract:: Due to the aluminum industry demands, a large effort has recently been devoted to the development of special alloys to be used as inert anodes for a newly designed aluminum reduction cell. The implementation of this new technology aims at the replacement of the graphite anodes that have been used...
Resource Type:: Dissertation

ScholarsArchive@OSU

The effect of primary alpha, nickel, and chromium on the creep properties of Ti 6242Si

Thermal annealing of Mo/Si multilayers to assess the stability relevant to soft x-ray projection lithography

Microstructural and mechanisms of cyclic deformation of aluminum single crystals

Changes in structure and stress in Mo/a-Si thin films upon annealing

Design of advanced aluminum silicon alloy compositions and processing

Thermal stability of surface treated zirconium

Dwell time low cycle fatigue in Ti-6242Si

Ductile fracture of metals under triaxial states of stress

Electrochemical etch characteristics of (100) silicon in tetramethyl ammonium hydroxide

Phase diagram, thermal stability, and high temperature oxidation of the ternary Cu-Ni-Fe system

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