Search Constraints

Start Over
Filtering by: Creator Williams, Mark W. Remove constraint Creator: Williams, Mark W. Committee Member Warnes, William H. Remove constraint Committee Member: Warnes, William H.

Search Results

  • Development of new high-temperature piezoelectric perovskite ceramics

    Creator:
    Ansell, Troy Youngmin
    Abstract:
    Lead zirconate titanate (PZT) is the dominant ferroelectric material in the market due to its excellent piezoelectric properties, relatively high Curie transition temperature (T[subscript C]), low cost, etc. However, because of emerging applications with requirements for high temperature (T[subscript C] > 400 °C) ferroelectrics, researchers are increasingly looking at alternative...
    Resource Type:
    Dissertation
    Full Text:
    Academic Press Inc. (London) Ltd., Bernard Jaffe, William R. Cook Jr., and Hans Jaffe, Piezoelectric

  • New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

    Creator:
    Konrad, Kevin
    Abstract:
    Earth’s mantle extends to nearly 3000 km depth, comprises >80 % of Earth’s total volume, and has the largest influence on the primordial and radiogenic heat budget. Despite its importance, the structure and composition of the mantle is still debated. There are three primary models for Earth’s mantle structure that...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________ David W. Graham Anthony A.P. Koppers Earth’s mantle extends to nearly 3000 km

  • Electronic Properties of Passive Films on Carbon Steel Rebar in Simulated Concrete Pore Solutions

    Creator:
    Williamson, Jon W.
    Abstract:
    In the highly alkaline environment of concrete, carbon steel rebar is protected against corrosion by a passive oxide/oxyhydroxide film. Understanding the characteristics of this passive film, and how it depassivates, is the key for mitigating problems associated with steel corrosion in concrete. Although a large number of electrochemical and analytical...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Jon W. Williamson for the

  • Structure-property relationships in oxides containing tellurium

    Creator:
    Siritanon, Theeranun
    Abstract:
    Oxides of post-transition metals often show unique structures and properties due to the presence of lone pair electrons and the diffused s orbitals. The present work focuses on synthesis and characterizations of oxides containing Te, a heavy post transition metal. New series of pyrochlore oxides of the formula Cs(M,Te)₂O₆ (M...
    Resource Type:
    Dissertation
    Full Text:
    with W 6+ , Te 6+ , and Te 4+ randomly occupying 16c octahedral site. The compounds show no

  • Effect of Imprinting Process on Fracture Behavior of a Zr-based Bulk Metallic Glass

    Creator:
    Li, Bosong
    Abstract:
    Bulk metallic glasses (BMGs) are relatively new amorphous materials that have received much attention in recent years. Rapid cooling methods from the liquid state provides the possibility to bypass crystallization during solidification. Due to the lack of crystal defects such as grain boundaries and dislocations, BMGs can have some special...
    Resource Type:
    Masters Thesis
    Full Text:
    values (KJ) and dimple sizes (w), a linear association between KJ2 and w was constructed. Overall

  • Printing 3D Magnetic Composite Structures with Arbitrary Anisotropy using UV-curable Magnetic Ink

    Creator:
    Clay, Garrett
    Abstract:
    Inkjet printing offers a cost effective, highly customizable method for rapid manufacturing of functional devices with minimal material waste. Although this method has been used for a variety of composites, little work has been done in the area of 3D printing magnetic composites. Presented here is a process for inkjet...
    Resource Type:
    Masters Thesis

  • Ecology of Greenland halibut (Reinhardtius hippoglossoides) during the early life stages in the Eastern Bering Sea and Aleutian Islands

    Creator:
    Sohn, Dongwha
    Abstract:
    Greenland halibut (Reinhardtius hippoglossoides) have decreased in the eastern Bering Sea and Aleutian Islands since the 1970s. The reasons behind the poor recruitment are unknown, and important knowledge gaps of the ecology of the early life stages have been identified. The objectives of thesis research were (1) to examine geographic...
    Resource Type:
    Masters Thesis
    Full Text:
    concentration of fish eggs, and w is the terminal velocity (m/s). When the Reynolds number for flow around

  • Routerless Network-on-chip

    Creator:
    Alazemi, Fawaz
    Abstract:
    Traditional bus-based interconnects are simple and easy to implement, but the scalability is greatly limited. While router-based networks-on-chip (NoCs) offer superior scalability, they also incur significant power and area overhead due to complex router structures. In this thesis, a new class of on-chip networks, referred to as Routerless (RL) NoCs,...
    Resource Type:
    Dissertation
    Full Text:
    . Rakesh Bobba, and William H. Warnes. • Prof. Ziad Najem for being a role model. • Prof. Mehmet Karaata

  • Comparison of HEU and LEU neutron spectra in irradiation facilities at the Oregon State TRIGA® reactor

    Creator:
    Schickler, Robert
    Abstract:
    In 2008, the Oregon State TRIGA® Reactor (OSTR) was converted from highly-enriched uranium (HEU) fuel lifetime improvement plan (FLIP) fuel to low-enriched uranium (LEU) fuel. This effort was driven and supported by the Department of Energy's (DoE's) Reduced Enrichment for Research and Test Reactors (RERTR) program. The basis behind the...
    Resource Type:
    Masters Thesis
    Full Text:
    characterization. I would like to thank my committee (Dr. Kenneth Krane, Dr. William Warnes, Dr. Andrew Klein

  • Fabrication and characterization of thin-film transistor materials and devices

    Creator:
    Hong, David
    Abstract:
    A class of inorganic thin-film transistor (TFT) semiconductor materials has emerged involving oxides composed of post-transitional cations with (n-1)d¹⁰ns⁰ (n≥4) electronic configurations. This thesis is devoted to the pursuit of topics involving the development of these materials for TFT applications: Deposition of zinc oxide and zinc tin oxide semiconductor layers...
    Resource Type:
    Dissertation
    Full Text:
    pressure of 30 mTorr and constant power of 50 W. A forward sweep (increasing oxygen partial pressure