An introduction is provided to the important engineering properties of materials, to the scientific understanding of those properties and to the methods of controlling them. This is provided in the context of the processing of materials to produce products.
This course includes both experimentation and open-ended design problems that are integrated with the Materials Processing course taught concurrently. Core design themes are further developed.
An introduction to the macroscopic theory of mechanical behavior. Topics include: concept of tensor stress and strain tensor, principal stresses, stress strain relations, anisotropic elastic constants, the dislocation stress field, yield and flow stress criteria, fracture, fatigue, viscoelasticity and creep.
A lecture and laboratory course that introduces basic concepts in the design and operation of transmission electron microscopes and scanning electron microscopes as well as the fundamental aspects of image interpretation and diffraction analysis. Topics include: electron sources, electron optics, kinematic and dynamic theory of electron diffraction, and spectroscopic analysis.
A typical textbook is Goodhew and Humphreys, Electron Microscopy and Analysis.
MT 650:Special Topics in Materials Science and Engineering
Selected topics in surface modification and coatings technology, such as chem-ical vapor deposition, physical vapor deposition, ion implantation or other. Description of the processing techniques, characterization and performance evaluation of the surfaces.
Research & Education
Research
Libera's research centers on the development, implementation, and application of advanced electron-optical techniques to the measurement and control of microstructure and morphology in engineering materials at high spatial resolution. He studies polymer morphology and polymer interfaces using transmission electron holography and spatially resolved electron energy-loss spectroscopy (EELS) in multi-component systems such as block copolymers, polymer blends, and composites.
One current emphasis area centers on the quantitative mapping of water in hydrated polymers and tissue using cryo-TEM coupled with spatially resolved EELS. The field-emission TEM and SEM tools at Stevens are being used to both study the physics of electron-polymer interactions as well as pattern polymers on surfaces using electron-beam lithography. The general interest is in creating bioactive surfaces to control protein adsorption and cell adhesion phenomena relevant to biomaterials and tissue engineering applications.
Education
Sc.D. (1987) MIT, Cambridge, MA, Materials Science, Thesis advisors: John Vander Sande and Morris Cohen
1989- present, Professor Stevens Institute of Technology
1996-97, Visiting Scientist, Robert L. Mitchell Technical Center, Hoescht-Celanese Corporation, Summit, New Jersey
1988-89; Visiting Scientist; IBM Research Division; Almaden Research Center, San Jose, CA
1987-1988 Post-Doctoral Research Associate, MIT, Cambridge, MA
Achievements & Professional Societies
Honors & Awards
Jess N. Davis Award for Exemplary Research, 1998
Alexander Humphreys Award for Outstanding Teaching, 1997
Materials Research Society Student Award, December 1986
Microscopy Society of America, Presidential Scholar, 1986
Charles D. Fraser Award, October 1980
Professional Societies
the American Physical Society (APS)
the Society for Biomaterials
the Materials Research Society (MRS)
the Adhesion Society
Selected Publications
Journals
G. Kim, A. Sousa, D. Myers, and M. Libera. (2008). "Nanoscale composition of biphasic polymer nanocolloids in solution measured by spatially resolved EELS in the cryo-STEM", Microscopy and Microanalysis. 14 (5), 459-468.
S. Yakovlev and M. Libera. (2008). "Dose-limited spectroscopic imaging of soft materials by low-loss EELS in the scanning transmission electron microscope", Micron. 39 734-740.
K. Ganeshnarayan, S.M. Shah, M.R. Libera, A. Santostefano, and J.B. Kaplan. (2009). "Poly-N-acetylglucosamine matrix polysaccharide impedes fluid convection and transport of the cationic surfactant cetylpyridinium chloride through bacterial biofilms", Applied and Environmental Microbiology. 75 1308-1314.
P. Krsko, J. Kaplan, and M. Libera. (2009). "Spatially controlled bacterial adhesion using surface-patterned poly(ethylene glycol) hydrogels.\", Acta Biomaterialia. 5 589-596.
P. Krsko, T. McCann, T.-T. Thach, T. Laabs, H. Geller, and M. Libera. "Length-Scale Mediated Adhesion and Directed Growth of Neural Cells by Surface-Patterned Poly(ethylene glycol) Hydrogels", Biomaterials. 30 721-729.
M. Sengonul, A. Sousa, and M. Libera. "Selective adsorption of surface-modified ferritin on a phase-separated polymer blend", Colloids and Surfaces B: Biointerfaces 2009. 73 (1), 152-155.
S. Yakovlev, M. Misra, S. Shi, and M. Libera. (2009). "Specimen thickness dependence of hydrogen evolution during cryo-transmission electron microscopy of hydrated soft materials", Journal of Microscopy.
D. Arayasantiparb, S. McKnight, M.R. Libera. (2001). "Compositional Variation within the Epoxy/Adherend Interphase", Journal of Adhesion Science and Technology, 15 (1463-84).
Miranda-Caru, A.D. Askanase, R.M. Clancy, F. Di Donato, T. Chou and M. Libera. (2000). "Anti-Ssa/Ro and Anti-Ssb/La Autoantibodies Bind the Surface of Apoptotic Fetal Cardiocytes and Promote Secretion of Tnf-Alpha by Macrophages", Journal of Immunology, 165 5345-1.
A. Quintero, M. Libera, C. Cabral Jr., C. Lavoie and J.M.E Harper. (1999). "Enhanced C54-Tisi2 Formation in Ti-Ta Alloy Films on Si Single Crystal Substrates", Journal of Materials Research, 14 4690-700.
Report
T.M. Chou, P. Prayoonthong, A. Aitouchen and M. Libera. (2002). "Nanoscale Artifacts in RuO4-Stained Poly(Styrene)", Polymer in Press.
T. Douglas, E. Strable, D. Willits, A. Aitouchen, M. Libera and
M. Young. (2002). "Protein Engineering of a Viral Cage for Constrained Nano-Materials Synthesis", Advanced Materials, 14 415-8.
J. Taylor, A. Romo-Uribe and M. Libera. (2002). "Spatially Resolved Electron Diffraction and the Determination of Orientational Order Parameters in Thermotropic Liquid Crystalline Polymer", Polymer 43, 1641-8.
J. Taylor, A. Romo-Uribe and M. Libera. (2002). "Bimodal Orientation Defects in Main-Chain Thermotropic Liquid Crystalline Polymer Fibers", Macromolecules, 35 1751-6.
K. Siangchaew and M. Libera. (1999). "Measurement of Interfacial Width in Poly(Styrene)/Poly(2-Vinyl Pyridine) by Spatially-Resolved Inelastic Electron Scattering", Macromolecules, 32 (3051-6).
G. Kim and M. Libera. (1998). "Microstructural Development in Solvent-Cast Polystyrene-Polybutadiene-Polystyrene (SBS) Triblock Copolymer Thin Films", Macromolecules, 31 2569-77.
G. Kim and M. Libera. (1998). "Kinetic Constraints on the Development of Surface Microstructure in SBS Thin Films", Macromolecules, 31 2670-2.
Y.C. Wang, T.M. Chou, M. Libera and T.F. Kelly. (1997). "Transmission Electron Holography of Silicon Nanospheres with Surface Oxide Layers", Applied Physics Letters, 70 1296-8.
Magazine
K. Siangchaew and M. Libera. (2000). "Influence of Fast Secondary Electrons on the Aromatic Structure of Polystyrene", Philosophical Magazine, 80 1001-16.
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