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  1. Article

    Open Access

    Microstructure and Crystallographic Texture Evolution of β-Solidifying γ-TiAl Alloy During Single- and Multi-track Exposure via Laser Powder Bed Fusion

    The microstructural evolution and crystallographic texture formation of β-solidifying Ti-44Al-6Nb-1.2Cr alloy were identified under single- and multi-track exposures via laser powder bed fusion (L-PBF) for var...

    Sung-Hyun Park, Ozkan Gokcekaya, Ryosuke Ozasa… in Metals and Materials International (2024)

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    Article

    Optimum Combination of Thermoplastic Formability and Electrical Conductivity in Al–Ni–Y Metallic Glass

    Both thermoplastic formability and electrical conductivity of Al–Ni–Y metallic glass with 12 different compositions have been investigated in the present study with an aim to apply as a functional material, i....

    Min Young Na, Sung Hyun Park, Kang Cheol Kim… in Metals and Materials International (2018)

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    Article

    Effect of minor addition of Zr on the oxidation behavior of Ti-Cu metallic glasses

    The oxidation behavior of (TiCu)100-XZrX (x=3, 5, 7 at%) amorphous alloy during continuous heating up to 1073 K has been investigated. The weight-gain due to oxidation occurs in a two-step mode. The first-step ox...

    Sung Hyun Park, Ka Ram Lim, Min Young Na… in Metals and Materials International (2016)

  4. No Access

    Article

    Spectrophotometric Observations of Gel-Free Reaction Front Kinetics in Confined Geometry

    We present a new experimental system to study the kinetics of the reaction front in A + B→ C reaction-diffusion systems with initially-separated reactants. The set-up is composed of a CCD camera monitoring the ki...

    Sung Hyun Park, Stephen Parus, Raou Kopelman… in MRS Online Proceedings Library (2011)

  5. No Access

    Article

    Microstructural Investigation of Bilayer Growth of In- and Ga-Rich InGaN Grown by Chemical Vapor Deposition

    Epitaxial InGaN with an In content of up to 89% was grown on a GaN template on a sapphire substrate using metalorganic chemical vapor deposition. The grown layer showed a bilayered structure of In- and Ga-rich...

    Jiwon Park, Sung-Il Baik, Dong-Su Ko, Sung-Hyun Park… in Journal of Electronic Materials (2009)

  6. No Access

    Article

    Anomalous Kinetics of Depletion Zone Growth with One-Dimensional Geometry: Photobleaching Experiments and Simulations

    We studied the kinetics of a diffusion-limited trap** reaction A + T → T in an effective one-dimensional geometry by experiments, supported by simulation calculations. The experiments are based on the photob...

    Hailin Peng, Sung Hyun Park, Haim Taitelbaum… in MRS Online Proceedings Library (2003)

  7. No Access

    Article

    Dimensional Crossover in the Growth of Depletion Zone in a Rectangular Capillary: Experiments and Monte Carlo Simulations

    The diffusion-limited kinetics of the growth of depletion zone around a static point trap in a thin, long stripe geometry was studied using a laser photobleaching experiment of fluorescein dye inside a rectang...

    Sung Hyun Park, Hailin Peng, Panos Argyrakis… in MRS Online Proceedings Library (2003)

  8. No Access

    Article

    Competing Elementary Reactions in a Capillary - Two Reaction Fronts Moving in Opposite Directions

    The behavior of two reaction fronts created in a system of two competing reactions has been investigated using the reaction between xylenol orange (XO) and chromium(III) ion in aqueous solution. Two reaction f...

    Sung Hyun Park, Haim Taitelbaum, Raoul Kopelman in MRS Online Proceedings Library (1998)