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Ralph E. Napolitano

Ames Laboratory Associate and Associate Professor, Iowa State University
Address
3273 Gilman Hall
Iowa State University
Ames, IA 50011
Phone 515-294-9101
Fax 515-294-4291
Email ralphn@iastate.edu

Research Interests

  • Fundamentals of physical metallurgy:
    • DOT solidification
    • Solid-liquid interfacial phenomena
  • Theoretical, computational, and experimental investigations of interfacial behavior:
    • Properties of crystal-melt interfaces
    • Morphological stability and dynamics of structural transitions
    • Dynamic control of solidification microstructures

        Project Affiliations:

(Chronologically most recent on top)Education

  • Ph.D. Metallurgy, Georgia Institute of Technology, 1996
  • M.S. Metallurgical Engineering, Georgia Institute of Technology, 1994
  • B.S. Materials Science & Engineering, University of Florida, 1989

(Chronologically most recent on top)Professional Appointments

  • 2005 - present Associate Professor, Materials Science and Engineering, Iowa State University
  • 2000 - 2005 Assistant Professor, Materials Science and Engineering, Iowa State University
  • 1998 - present Associate Scientist, The Ames Laboratory
  • 1996 - 1998 NRC Post Doctoral Research Fellow, National Institute of Standards and Technology
  • 1989 - 1992 Research Engineer, Babcock and Wilcox Research and Development Division

(Chronologically most recent on top)Honors & Awards

  • 2006 Outstanding Young Faculty Research Award, Iowa State College of Engineering Award
  • 2004 Excellence in Research Award, Iowa State Department of Materials Science and Engineering
  • 2000 Council of Outstanding Young Engineering Alumni, Georgia Institute of Technology
  • 1996 NRC Postdoctoral Fellowship, National Research Council
  • 1996 Outstanding Doctoral Thesis Award, Sigma Xi, Scientific Research Society, Georgia Tech Chapter
  • 1995 Student Leadership Scholarship for International Study, Georgia Tech Alumni Association
  • 1995 SAIC Paper Competition Winner, Science Applications International Corporation
  • 1995 ASM Leadership Award, ASM International, Atlanta Chapter
  • 1994 NSF Traineeship for Composites Research, National Science Foundation
  • 1994 TMS Symposium on Superalloys Scholarship, The Minerals, Metals, and Materials Society
  • 1993 Inducted into the Alpha Sigma Mu Honorary MSE Fraternity, The Georgia Tech Chapter of Alpha Sigma Mu
  • 1989 Grodsky Outstanding Senior Scholarship, University of Florida, Department of Materials Science and Engineering

(Chronologically most recent on top)Publications with the Ames Laboratory

2012
Wang T; Napolitano R E . 2012. A Phase-Field Model for Phase Transformations in Glass-Forming Alloys. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science. 43A:2662-2668. abstract
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2011
Fang X W; Wang C Z; Hao S G; Kramer M J; Yao Y X; Mendelev M I; Ding Z J; Napolitano R E; Ho K M . 2011. Spatially Resolved Distribution Function and the Medium-Range Order in Metallic Liquid and Glass. Scientific Reports. 1:194. abstract
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Hao S G; Wang C Z; Li M Z; Napolitano R E; Ho K M . 2011. Dynamic arrest and glass formation induced by self-aggregation of icosahedral clusters in Zr(1-x)Cu(x) alloys. Physical Review B. 84:064203. abstract
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Kalay I; Kramer M J; Napolitano R E . 2011. High-Accuracy X-Ray Diffraction Analysis of Phase Evolution Sequence During Devitrification of Cu50Zr50 Metallic Glass. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science. 42A:1144-1153. abstract
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2010
Kramer M J; Mendelev M I; Napolitano R E . 2010. In Situ Observation of Antisite Defect Formation during Crystal Growth. Physical Review Letters. 105:245501. abstract
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Hao S G; Wang C Z; Li M Z; Napolitano R E; Mendelev M I; Ho K M . 2010. Prediction of cooling rate dependent ordering in metallic glass transition using a two-state model. Computational Materials Science. 49:615-618. abstract
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Yao Y X; Napolitano R; Wang C Z; Ho K M . 2010. Thermodynamic limits of crystallization and the prediction of glass formation tendency. Physical Review B. 81:212202. abstract
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Zhou S H; Napolitano R E . 2010. Phase stability for the Cu-Zr system: First-principles, experiments and solution-based modeling. Acta Materialia. 58:2186-2196. abstract
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2009
Asta M; Beckermann C; Karma A; Kurz W; Napolitano R; Plapp M; Purdy G; Rappaz M; Trivedi R . 2009. Solidification microstructures and solid-state parallels: Recent developments, future directions. Acta Materialia. 57:941-971. abstract
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2008
Zhou S H; Napolitano R E . 2008. Energetics of nonequilibrium solidification in Al-Sm. Physical Review B. 78:184111. abstract
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