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  1. No Access

    Article

    Microstructure and mechanical properties of two-phase Fe30Ni20Mn20Al30. Part I: Microstructure

    The microstructure of Fe30Ni20Mn20Al30 in both the as-cast condition and after annealing at 823 K for various times up to 72 h was characterized using transmission electron microscopy, scanning transmission elect...

    X. Wu, I. Baker, M. K. Miller, K. L. More, Z. Cai, S. Chen in Journal of Materials Science (2013)

  2. No Access

    Article

    Comparison of Short-Term Oxidation Behavior of Model and Commercial Chromia-Forming Ferritic Stainless Steels in Dry and Wet Air

    A high-purity Fe–20Cr and commercial type 430 ferritic stainless steel were exposed at 700 and 800 °C in dry air and air with 10% water vapor (wet air) and characterized by SEM, XRD, STEM, SIMS, and EPMA. The ...

    M. P. Brady, J. R. Keiser, K. L. More, M. Fayek, L. R. Walker… in Oxidation of Metals (2012)

  3. No Access

    Article

    Sulfidation–Oxidation Behavior of FeCrAl and TiCrAl and the Third-Element Effect

    Short-term sulfidation–oxidation exposures were conducted under high pS2 and low pO2 conditions for TiCrAl and FeCrAl alloys at 600 and 800 °C. Low mass gains and submicron Al-and Ti-rich oxide scales were formed...

    M. P. Brady, P. F. Tortorelli, K. L. More, L. R. Walker in Oxidation of Metals (2010)

  4. No Access

    Article

    Characterization of alumina interfaces in TBC systems

    Interfacial segregants in thermally grown α-Al2O3 scales formed during high temperature exposure of thermal barrier coating systems reflect the oxygen-active dopants present in the bond coating and substrate, suc...

    B. A. Pint, K. L. More in Journal of Materials Science (2009)

  5. No Access

    Article

    The formation of protective nitride surfaces for PEM fuel cell metallic bipolar plates

    The selective gas nitridation of model nickel-based alloys was used to form dense, electrically conductive and corrosion-resistant nitride surface layers, including TiN, VN, CrN, Cr2N, as wellas a complex NiNbVN ...

    M. P. Brady, B. Yang, H. Wang, J. A. Turner, K. L. More, M. Wilson, F. Garzon in JOM (2006)

  6. No Access

    Article

    Effect of Quaternary Additions on the Oxidation Behavior of Hf-Doped NiAl

    Cast model alloys, based on β-NiAl+0.05at.%Hf, were used to study the effects on oxidation behavior of elements that are commonly present in low-activity aluminide bond coatings on single-crystal, Ni-base supe...

    B.A. Pint, K.L. More, I.G. Wright in Oxidation of Metals (2003)

  7. No Access

    Article

    Influence of Sulfur, Platinum, and Hafnium on the Oxidation Behavior of CVD NiAl Bond Coatings

    The influences of S, Pt, and Hf on the oxidation behavior of chemical vapor deposition (CVD) NiAl bond coatings on high-S and low-S superalloys were investigated. Cyclic and isothermal-oxidation testing at 115...

    J. A. Haynes, B. A. Pint, K. L. More, Y. Zhang, I. G. Wright in Oxidation of Metals (2002)

  8. No Access

    Article

    Synthesis of functionally graded metal-ceramic microstructures by chemical vapor deposition

    A composite microstructure consisting of small α-Al2O3 particles dispersed in a β-NiAl coating matrix was synthesized by chemical vapor deposition (CVD). White the surface of a pure Ni substrate was being reacted...

    W. Y. Lee, Y. W. Bae, K. L. More in Journal of Materials Research (1995)

  9. No Access

    Article

    Matrix characterization of fibre-reinforced SiC matrix composites fabricated by chemical vapour infiltration

    Ceramic matrix composites (CMCs), that consist of silicon carbide (SiC) reinforced with continuous Nicalon™ or T-300® fibres, are being developed for many high-temperature structural applications. The large poten...

    D. P. Stinton, D. M. Hembree Jr., K. L. More, B. W. Sheldon… in Journal of Materials Science (1995)

  10. No Access

    Article

    Effects of radiation on SiC-based Nicalon fibers

    This paper presents neutron and ion radiation effects in the Nicalon SiC polymer precursor fiber. It is shown that the serious structural degradation of this fiber and its composites (e.g., CVD SiC/Nicalon) pr...

    L. L. Snead, M. Osborne, K. L. More in Journal of Materials Research (1995)

  11. No Access

    Chapter

    Kinetics and Mechanisms of Constant Stress Creep in the Non-Oxide Ceramics of SiC, SiC Whisker-Reinforced Si3N4 Composites and AIN

    Constant stress, uniaxial compressive creep studies have been conducted within inert environments on polycrystalline SiC, SiC-whisker reinforced Si3N4 and AIN. Creep of reaction-bonded SiC within the ranges of te...

    Robert F. Davis, C. H. Carter Jr., K. L. More… in Plastic Deformation of Ceramics (1995)

  12. No Access

    Article

    Self-Lubricating, TiN-MoS2 Composite Coatings Produced by Simultaneous Deposition from Ti ((CH3)2N)4/NH3/MoF6/H2S Gas Mixtures

    Composite coatings consisting of discrete phases of TiN and MoS2 were codeposited on graphite substrates from Ti((CH3)2N)4/NH3/MoF6/H2S gas mixtures in a cold-wall reactor at 1073 K and 1.3 kPa. Chemical composit...

    Y. W. Bae, W. Y. Lee, T. M. Besmann, P. J. Blau… in MRS Online Proceedings Library (1994)

  13. No Access

    Article

    Composition/structure/property relations of multi-ion-beam reactive sputtered lead lanthanum titanate thin films: Part II. Textured microstructure development

    This paper, the second of three parts, presents a detailed analysis of the crystallographic texture observed in lead lanthanum titanate (PLT) thin films deposited by multi-ion-beam reactive sputtering. Since f...

    G. R. Fox, S. B. Krupanidhi, K. L. More in Journal of Materials Research (1993)

  14. No Access

    Article

    Phase evolution in boron nitride thin films

    Boron nitride (BN) thin films were deposited on monocrystalline Si(100) wafers using electron beam evaporation of boron with simultaneous bombardment by nitrogen and argon ions. The effect of film thickness on...

    D. J. Kester, K. S. Ailey, R. F. Davis, K. L. More in Journal of Materials Research (1993)

  15. No Access

    Article

    Kinetics and mechanisms of high-temperature creep in polycrystalline aluminum nitride

    The operative and controlling mechanisms of steady-state creep in hot-pressed AlN have been determined both from kinetic data within the temperature and constant compressive stress ranges of 1470 to 1670 K and...

    A. Vasudev, K. L. More, K. S. Ailey-Trent, R. F. Davis in Journal of Materials Research (1993)

  16. No Access

    Article

    Composition/structure/property relations of multi-ion-beam reactive sputtered lead lanthanum titanate thin films: Part I. Composition and structure analysis

    Material properties are greatly dependent upon the structure of the material. This paper, the first of three parts, discusses how composition influences the crystallographic structure and microstructure of lea...

    G. R. Fox, S. B. Krupanidhi, K. L. More, L. F. Allard in Journal of Materials Research (1992)

  17. No Access

    Article

    Deformation and microstructural changes in SiC whisker-reinforced Si3N4 composites

    Constant stress compressive creep studies have been conducted on hot-pressed Si3N4 containing 30 vol. % SiC whiskers and an initial vitreous phase composed of Al2O3, Y2O3, and SiO2. The conditions of temperature ...

    D. A. Koester, K. L. More, R. F. Davis in Journal of Materials Research (1991)

  18. No Access

    Article

    Growth of Epitaxical SiC Layers onto on and off Axis 6H SiC Substrates by Ion Beam Deposition

    Thin films of ß-SiC have been grown epitaxically onto on-axis (0001) 6H α-SiC substrates using ion beam deposition. The ion beam deposition technique involves the direct deposition of alternating layers of 13C+ a...

    K. L. More, S. P. Withrow, T. E. Haynes, R. A. Zuhr in MRS Online Proceedings Library (1989)

  19. No Access

    Article

    Microstructural Characterization of Multiphase Coatings Produced By Chemical Vapor Deposition

    Chemical vapor deposition has been utilized to produce ternary, multiphase coatings of various compositions of silicon carbide (SiC) with Ti, Cr, and Mo. Thermodynamic calculations have been performed for a va...

    R. A. Lowden, K. L. More, T. M. Besmann, R. D. James in MRS Online Proceedings Library (1989)

  20. No Access

    Article

    Characterization of Ceramic Matrix Composites Fabricated by Chemical Vapor Infiltration

    A process for the preparation of fiber-reinforced SiC composites by chemical vapor deposition has been developed at Oak Ridge National Laboratory. Composites are prepared by infiltrating fibrous preforms with ...

    D. P. Stinton, D. M. Hembree, K. L. More, B. W. Sheldon… in MRS Online Proceedings Library (1989)

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