CURRICULUM VITAE
Immigration status: Green Card Holder (Permanent Resident) by NIW (National Interest Waiver)
Education
Ph.D. Materials Science and Engineering
Korea Advanced Institute of Science and Technology (KAIST), Daejeon,
South Korea, February 2009
Dissertation: Effect of the Underlayer and Carbon Addition on the
Perpendicular Magnetization of FePt:C Magnetic Thin Film
Thesis Advisor: Dr. Joong Keun Park
M.S. Materials Science and Engineering
Hanyang University, Seoul, South Korea, February 2004
Dissertation: A Study on the Microstructure and Mechanical Properties of
Nanocrystalline (Al+Y)3X (X=Zr, Ti; Y=Cu, Mn) Intermetallic Compounds
Synthesized by Planetary Ball Milling and Spark Plasma Sintering
Thesis Advisor: Dr. Kyung Sub Lee
B.S. Materials Science and Engineering
Hanyang University, Seoul, South Korea, February 2002
Research Areas of Specialty
Advanced Materials Science and Engineering
Electronic Microscopy, Analysis Technique
Nano Materials Physics, Nano Materials Chemistry
Nanostructured Metal Alloys and Materials (Structure & Property)
Thin Film Technology (Structure & Property)
Biomedical Device Materials Area, Porous Bioceramic Materials Area
Professional Experience
January 2011-December 2013: Senior Materials Scientist
Research and Development
SigmaGraft, Inc. in CA, USA
Conducted research and development on the porous bioceramic materials such as β-tricalcium phosphate (β-TCP), biphasic calcium phosphate (BCP, hydroxyapatite(HAp) & β-tricalcium phosphate), inorganic bovine bone applied as medical device (dental/orthopedic bone graft substitute for bone repair or healing) products and research on relationship between physicochemical & mechanical characterization, microstructure, and fabrication process of natural hydroxyapatite derived from bovine bone (xenograft) and β-TCP & BCP (synthetic bone graft).
December 2009-July 2011: Visiting Scholar Researcher
Department of Materials Science and Engineering
University of California, Los Angeles (UCLA)
Conducted assistance for research proposal preparation in powder and bulk titanium alloy fabrication of nanostructured Ti-6Al-4V for high temperature structural applications using Cryogenic Milling and Spark Plasma Sintering; enhancement of mechanical properties by nanostructure and nanoscale deformation twins (nanotwins) of titanium alloy (Ti-6Al-4V)-bulk.
August 2009-December 2009:Postdoctoral Research Fellow
Engineering Research Center (ERC)
Department of Electrical and Computer Engineering
Colorado State University
Conducted research on the synthesis and structural properties of nanoporous Al2O3 and TiO2 oxide films used as an electrode materials for atmospheric plasma.
March 2009-May 2009: Postdoctoral Research Fellow
Applied Science Research Institute
Korea Advanced Institute of Science and Technology (KAIST)
Conducted research on the relationship between microstructure evolution and magnetic properties of FePt:C nanocomposite films with perpendicular magnetic anisotropy.
March 2004-February 2008: Research Assistant
Materials Institute
Korea Advanced Institute of Science and Technology (KAIST) Brain Korea 21
Conducted research on the synthesis, structural characterizations, magnetic domain structure analysis, and magnetic properties of L10-highly ordered FePt:C nanocomposite multilayer magnetic thin films with perpendicular and longitudinal magnetic anisotropy; epitaxial growth mechanism of MgO oxide films with sputter-deposition condition; synthesis of a new underlayer of Pt/MgO composite films for perpendicular magnetic anisotropy of FePt:C composite films; low-temperature deposition process of FePt:C composite films using a new underlayer; thin films growth mechanism during film deposition by in-situ surface stress measurement of thin films.
March 2002-February 2004: Research Assistant
Materials Institute
Hanyang University Brain Korea 21
Conducted research on the powder and bulk alloy preparation of nanocrystalline (Al+Y)3X (X=Zr, Ti; Y=Cu, Mn) intermetallic compounds for high temperature structural applications using Planetary Ball Milling and Spark Plasma Sintering; microstructure analysis, thermal stability for microstructure (grain growth), and mechanical properties of nanocrystalline intermetallic compounds; enhancement of mechanical properties by L12 ordering phase transformation and nanocrystalline structure of intermetallic compounds (Al3X)-bulk.
June 2002-October 2002: Research Engineer
Nano Power Tech. (Intramural Venture), Seoul, South Korea
Conducted research on the fabrication, microstructure analysis, and magnetic properties of nanocrystalline magnetic powder and bulk materials. This was joint work with researchers in the Division of Materials Science and Engineering, Hanyang University in South Korea, as well as in the Samwha Electronics, Inc. in South Korea.
Technical Experience:
Specimen Fabrication Nano thin films synthesis by direct current (DC)/radio frequency
(RF) magnetron sputtering and electrochemical process (anodizing
method), Nano powder synthesis by Planetary Ball Milling (PBM),
Nano bulk systhesis by Spark Plasma Sintering (SPS), Furnace
annealing, Rapid Thermal Annealing (RTA), Transmission electron
microscopy (TEM) specimen preparation by polishing, ultrasonic
disk cutting, dimpling, ion milling, and Focused Ion Beam (FIB)
milling, Wet-chemical precipitation (β-tricalcium phosphate,
biphasic calcium phosphate powder synthesis)
Measurement ...
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