Faculty Profiles
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CHRISTOPHER C. BERNDT, Professor Ph.D. 1981, Monash University, Australia Chris Berndt researches thermal spray coatings and their failure processes. These coatings can be classified as "composite-like" in character and, in this fashion, various microstructural phenomena can be scientifically analyzed. His specific areas of interest include coatings for biomedical, power generation, and infrastructural applications. A particular analysis technique that he has championed is that of acoustic emission whereby sensors placed on coatings can be used to detect and amplify cracking processes in situ. In this fashion, he has been able to develop tools that can be used to predict the onset of coating failure and, thereby, the spray parameter variations of thermal spray are now better understood. Berndt is also editor-in-chief of The Journal of Thermal Spray Technology-the only journal that is dedicated to this area of science and technology. (516) 632-8507, cberndt@notes.cc.sunysb.edu |
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CLIVE R. CLAYTON, Professor Ph.D. 1976, University of Surrey, England It has been the philosophy of Clive Clayton's laboratory to utilize the powerful tools of surface science for the study of industrially relevant surface and interfaces. For this purpose the lab has developed a surface analysis laboratory that consists of several X-ray photoelectron spectrometers and two scanning auger microscopes. These facilities have been used to pursue a better understanding of the passivation of engineering alloys in aqueous media. Passive films having thicknesses of 1-10 monolayers can be studied by these techniques without removing the films. To prepare passive films and to test their effectiveness in a variety of corrosive media (including microbial environments), electrochemical polarization techniques are utilized. Clayton's lab is collaborating with the Mechanical Engineering department in order to correlate surface chemistry with the corrosion fatigue of aircraft grade aluminum alloys. This study also seeks to correlate laser speckle interferometer measurements with the early stages of localized corrosion. (516) 632-8504, cclayton@ccmail.sunysb.edu |
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MICHAEL DUDLEY, Professor Ph.D. 1982, University of Warwick, England Michael Dudley has directed the Stony Brook Synchrotron Topography Facility at the National Synchrotron Light Source at Brookhaven National Laboratory since 1987. His specialties include synchrotron topographic analysis of defects and generalized strain fields of single crystals in general, with particular emphasis on semiconductor, optoelectronic, and optical crystals. Establishing the relationship between crystal growth conditions and resulting defect distributions is a particular thrust area of interest to Dudley, as is the correlation between electronic/ optoelectronic device performance and defect distribution. He also actively pursues topographic studies of dynamic phenomena. His current research is funded through AFOSR/DARPA, ARO, NASA, and industry (Cree Research Inc., ATMI, and Sterling Semiconductor). Dudley is a member of ASM International, the American Chemical Society, and the Materials Research Society. He has authored in excess of 100 articles. (516) 632-8500, mdudley@notes.cc.sunysb.edu |
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RICHARD J. GAMBINO, Professor M.S. 1976, Polytechnic Institute of New York Richard Gambino does research on magnetic and magneto-optical materials and devices. He invented the materials used in magneto-optical storage disks. In 1995 he received the National Medal for Technology for this work. His current research interest is magnetic exchange interactions at phase boundaries. A new class of giant magnetoresistance materials has been discovered based on anti-ferronmagnetic exchange at the boundary between two ferronmagnetic phases. Gambino has studied a wide range of electronic materials including magnetic thin films, oxide superconductors, intermetallic compounds, and magnetic oxide crystals. Prior to joining the Materials Science faculty in 1993, Gambino was a member of the research staff at IBM Research, and has some 40 patents to his credit. (516) 632-9513, rgambino@ms.cc.sunysb.edu |
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DILIP GERSAPPE, Assistant Professor Ph.D. 1992, Northwestern University Studying statistical mechanics and computer modeling of complex chemical systems is at the heart of Dilip Gersappe's research. He investigates the behavior of self-assembling polymeric and biopolymeric systems, and is developing theories for the properties of polymer blends and the behavior of polymers at surfaces and interfaces. In recent work, Gersappe has used mean field theories to determine the effect of confinement on the properties of thin film polymer blends. In other work, he has used molecular dynamics simulations to isolate the molecular mechanisms of failure in polymeric adhesives. Currently, he is developing parallel molecular dynamics techniques to study the strengthening mechanisms in polymer nanocomposites and to investigate the factors that control the permeability of polymeric membranes. (516) 632-7642, Dilip.Gersappe@sunysb.edu |
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GARY HALADA, Assistant Professor Ph.D. 1993, State University of New York at Stony Brook Gary Halada is associate director of the Laboratory for Surface Analysis and Corrosion Science. His research involves the use of surface analytical equipment, including novel development of laboratory and synchrotron-based infrared surface microspectroscopy (in association the National Synchrotron Light Source at BNL), in the study of environmental degradation and corrosion, protective coatings development, decontamination of metallic surfaces, and ion beam surface modification. In addition, he works on a number of industrial collaborations in failure analysis and multilayer device fabrication through the Strategic Partnership for Industrial Resurgence. Halada is an active member of the American Vacuum Society, the Electrochemcial Society, the Materials Research Society, and the American Society for Engineering Education. He is also the coordinator for the undergraduate Engineering Science computer laboratory. (516) 632-8526, ghalada@ms.cc.sunysb.edu |
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HERBERT HERMAN, Professor Ph.D. 1961, Northwestern University In addition to directing the Center for Thermal Spray Research, Herbert Herman engages in research on thermal spray science and technology, which involves the high velocity melt-spraying of materials to form enhanced performance protective coatings of metals, ceramics, and polymers. Supported by an NSF "Materials Research Science and Engineering Center" grant, Herman and his colleagues are exploring means through which processing can control deposit microstructure and thus properties. In particular, Herman's work focuses on the imperfection structure associated with thermal spray deposits. Herman also has research activities in ocean engineering, principally involving marine materials. His lab has a long-term program underway aimed at the protection of materials at sea. The group's work involves the thermal spray metallization of structural steel, yielding long-term corrosion protection in a wide range of industrial and marine environments. (516) 632-8510, hherman@ms.cc.sunysb.edu |
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FRANCO P. JONA, Professor Ph.D. 1949, Swiss Polytechnic Institute, Switzerland Franco Jona studies the physical and chemical properties of solid crystal surfaces; in particular, the arrangement of atoms in the first few atomic layers of metal and semiconductor surfaces, using low-energy electrons as a probe. He is also engaged in the study of epitaxial ultrathin films of metals on metals or semi-conductors (ultrathin films have thickness of only ten or twenty atomic layers). Such films allow the growth of new, metastable phases of the film material, i.e., phases that are not found in nature at ordinary temperatures or pressures. Before joining Stony Brook in 1969, Jona spent ten years at the IBM Research Center doing research on various aspects of crystal growth and crystal physics. In 1960, he co-authored a book on ferroelectric crystals, which is now considered a classic in the field. (516) 632-8508, franco@ccvm.sunysb.edu |
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ALEXANDER H. KING, Professor D.Phil. 1979, Oxford University Alex King works on grain boundaries and other interfaces, with a special emphasis on polycrystalline thin films of a variety of different materials. Using electron microscopy and a range of theoretical approaches, his research group is developing a detailed understanding of the forces that influence grain boundaries in thin films, and how the grain boundaries influence the properties of the films. Recent work has focused upon the junctions of grain boundaries, called "triple lines" and the work has applications ranging from electronic materials to thermal barrier coatings. King has published over 100 refereed papers and has edited four technical books. He is a fellow of both ASM International and the Institute of Materials (UK). King is also the print and electronic media review editor for the Elsevier journal, Materials Science & Engineering A, and a member of the board of Review of Metallurgical Transactions A. (516) 632-8499, Alexander.King@sunysb.edu |
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DAVID J. LARSON, JR., Professor Ph.D. 1984, Northwestern University Helping NASA reach for the stars is one of David Larson's many activities. During his 27 years at Grumman Aerospace Corporation, he worked on specific aircraft applications involving shape-memory (smart) materials, Sn-coated copper wire aging, and eutectic brazements for titanium structures. In 1972 he began a long, continuing collaboration with the Office of Life and Microgravity Science and Applications Division of NASA, studying the influences of gravitational phenomena on solidification and crystal growth. Larson's current interests include: microgravity science; high-fidelity solidification process modeling development for eutectic solidification and crystal growth; and crystal characterization using infrared and X-ray spectroscopy and synchrotron topography. Current NASA projects include: Orbital Processing of Zn-alloyed CdTe Compound Semiconductors, Orbital Processing of Eutectic Rod-Like Arrays (OPERA), and Thermal Equilibration and Chemical Homogeneity (TEACH). It is anticipated that the OPERA and TEACH experiments will be flown on the Space Shuttle or the International Space Station. (516) 632-8485, dlarson@ms.cc.sunysb.edu |
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MIRIAM RAFAILOVICH, Professor Ph.D. 1980, State University of New York at Stony Brook While earning her Ph.D. in Nuclear Physics, Miriam Rafailovich specialized in the study of magnetic properties of metals using nuclear techniques. She then took an appointment at Brookhaven National Laboratory where she did further studies in the field of solid state magnetism before she joined the Materials Science department. Today, Rafailovich now devotes most of her research effort to the study of polymers. In this area, she has worked on problems of ordering in polymer mixtures and at liquid interfaces, defect structures in block polymer systems, adhesion between different polymers and dynamics of ion-containing polymers. Her experiments on polymers involve atomic force microscopy, electron microscopy, X-ray and neutron reflection measurements, and ion scattering. (516) 632-8483, mrafailovich@ccmail.sunysb.edu |
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SANJAY SAMPATH, Associate Professor Ph.D. 1989, State University of New York at Stony Brook Sanjay Sampath's research encompasses the fields of thermal spray processing of materials, tribology of protective coatings, and the synthesis and application of functionally graded materials. His specific current research focus includes microstructural control during thermal spray deposition and establishing process-microstructure-property relationships. As part of this activity-wide ranging materials including metals, intermetallics, ceramics, and composites are being investigated through a variety of non-equilibrium spray processes. A consequence of the research is the development of novel layered and functionally graded microstructures, wherein materials design and processing are interlinked to provide optimum surface engineering solutions. He is also interested in the application of these layered and graded surfaces to mitigate against contact damage and wear, and as such tribological evaluation of these complex systems is being studied. (516) 632-9512, ssampath@ms.cc.sunysb.edu |
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LESLIE SEIGLE, Professor Emeritus D.SC. 1951, Massachusetts Institute of Technology Dr. Leslie Seigle's research interests lie in the general areas of thermodynamics of solids, diffusion in solids, and the theory of solid-state sintering. He has been actively engaged in studies of the thermodynamics of solid metallic solutions, mechanisms of formation and degradation of aluminide and similar types of protective coatings on high-temperature alloys, and the role of diffusion processes in the sintering of solids. His work includes detailed investigations of the thermodynamic activity of oxygen, nitrogen, and carbon in the refractory metals; diffusion in the nickel-aluminum and iron-aluminum systems; and thermodynamics and kinetics of the pack-aluminization process. Seigle was a member of the New York University-Moscow Steel Institute Exchange of Metallurgical Delegates in 1957, chairman of the National Academy of Sciences, Material Advisory Board Panel on the Fundamentals of Coating Systems from 1967-1969, and is past chairman of the N.Y. chapters of ASM and AIME. (516) 632-8514, lseigle@ms.cc.sunysb.edu |
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JONATHAN C. SOKOLOV, Professor Ph.D. 1983, State University of New York at Stony Brook Before joining Stony Brook's faculty in 1992, Jonathan Sokolov began his work in the area of polymer studies at the Weizman Institute of Science. Currently, his research on polymers includes studies of diffusion, surface and interfacial properties, ordering in polymer blends and dynamics in thin films. To study polymers, Sokolov uses various experimental techniques, such as ion and neutron scattering, atomic force microscopy, mechanical measurements, and optical microscopy. Experiments are carried out at Stony Brook and in collaboration with various scientists at other laboratories, especially using advanced facilities at nearby Brookhaven National Laboratory. (516) 632-8483, jsokolov@ccmail.sunysb.edu |
