Emeritus Faculty

Wilbur Bigelow, Professor Emeritus

2042 HH Dow

(734) 764-3321
Research activities cover a variety of topics, including: surface chemistry and structure of oleophobic monolayers, development of special purpose lubricating oils, identification of minor phases formed during heat treatment of heat resistant alloys, transformation kinetics of the hydrates of calcium sulfate and their relationship to producing potable water from sea water, the distribution and function of silica deposits in plant tissues, and bonding of ceramics to dental prostheses. Ongoing investigation continues in instrumentation and nstrumental methods in the general fields of electron microscopy and x-ray diffraction.
John Bilello, Professor Emeritus

2042 HH Dow

(734) 764-6128

Application of high energy (synchrotron radiation) x-ray diffraction imaging, microdiffraction, grazing angle incidence scattering and other associated techniques as a tool for non-destructive materials characterization to study a wide range of problems in metals, alloys and semi-conductors where it is necessary to control the structure-property relationships on both the micro and macro-scale to achieve improved performance or to create new materials.

Current research is focused on surface and interface studies in controlling the fabrication and mechanical properties of thin films, multilayer nanocomposites, and on the role of grain boundaries in fatigue and fracture.

Rod Ewing, Professor Emeritus

2012 CC Little

(734) 647-8529

The research program emphasizes the interdisciplinary study of natural and synthetic phases. Topics include: radiation effects caused by heavy-particle interactions with crystalline materials (e.g., amorphization and ion-beam modification of ceramics and minerals); structure and crystal chemistry of complex Nb-Ta-Ti oxides; structure and crystal chemistry of actinide-bearing phases; geochemistry of uranium; design and selection of radioactive waste forms; use of natural systems to evaluate the long-term durability of materials; low-temperature corrosion of silicate glasses; study of the natural nuclear reactors in Gabon, Africa, and the application of synchrotron radiation, x-ray diffraction and high resolution and analytical transmission electron microscopy to the study of earth and ceramic materials.

Ronald Gibala, Professor Emeritus

2028 HH Dow

(734) 936-0178
My research is on structural materials, mainly metallic and intermetallic alloys, with an emphasis on fundamental micromechanical behavior and mechanistic understanding. It includes interest in polymers, polymer composites and functional materials through problems that focus on the importance of interfaces and interface properties. Much of the research on bcc metals and intermetallics involves investigation of ductility enhancement mechanisms using surface films and precipitated second phases. Mechanisms of deformation and fracture of thermoelastic polymers and composites and the interface structure and properties of semiconductor and metallic superlattice materials prepared by molecular beam epitaxy have been examined. Additional interests include hydrogen and other interstitial solutes in metals, structure and mechanical properties of inorganic amorphous solids and, most recently, use of first principles density functional theory to understand defect interactions in metals.
John William Halloran, Professor Emeritus

2010 HH Dow

(734) 763-1051

Ceramic Matrix Composites, Ultra-High Temperature Ceramics, Additive Manufacturing

Edward Hucke, Professor Emeritus

Chemical thermodynamics, materials processing, carbide cermets, vitreous carbon, ceramic materials, metallurgy, extraction and processes.
J. Wayne Jones, Professor Emeritus

2022 Gerstacker

(734) 764-7503

My research area if focused on the mechanical behavior of structural metal alloys and specifically on fatigue and creep. For the past three years my group has been involved in using ultrasonic fatigue to examine the very high cycle fatigue behavior of magnesium, aluminum, titanium alloys and nickel-base superalloys. Our goals are to understand the mechanisms of fatigue crack initiation and crack growth where fatigue lifetimes may be as long as 109 cycles and to understand how microstructural variability can be incorporated into probabilistic models for fatigue life prediction. My research group is also investigating the influence of composition and microstructure on creep behavior in magnesium alloys. Here the emphasis is on understanding the role of microstructural stability during creep in die cast magnesium alloys intend for elevated temperature applications. These research efforts are funded by NSF, AFOSR, DARPA, Ford Motor Company and USAMP.

John Mansfield, Associate Research Scientist Emeritus

(734) 834-3913

Dr. Mansfield's research focused on the application of advanced microscopy techniques to the chemical, morphological, and crystallographic characterization ofa wide variety ofmaterials. He served as the laboratory manager of the University of Michigan Electron Microbeam Analysis Laboratory (EMAL) from 1987-2005, then as the laboratory manager and associate laboratory director from 2005-15. In 2015, when EMAL was renamed as the Michigan Center for Materials Characterization ((MC)2), Dr. Mansfield was promoted to director ofeducation and engagement, a position that he held until his retirement.
In his position in the EMAL/(MC)2, Dr. Mansfield taught, mentored, and collaborated with over 6,110 undergraduate students, graduate students, and post-doctoral researchers in the field of nanoscale materials characterization. He taught the introductory electron microscopy course MSE562, over a dozen different techniques seminars for new users to EMALI/(MC)2, modules of the College of Engineering's Responsible Conduct for Research and Scholarship, and numerous guest lectures in electron microscopy techniques across campus. His efforts were always focused on student success and have ensured that graduate practitioners in advanced materials characterization are among the most proficient in the field, both nationally and internationally.
In addition, his numerous contributions to the university have included ensuring that external funding was secured to maintain the EMAL/(MC)2 as a world-class facility for materials science research.

Robert Pehlke, Professor Emeritus

2042 HH Dow

(734) 764-7489
Major research interests include computer modeling of casting processes, along with experimental and theoretical investigation of extraction, refining and metal processing systems. A major program on computer-aided design (CAD) of castings has focused on modeling of heat transfer and solidification of castings, and the integration of this information into optimization of the rigging, gating and risering of castings. Experimental studies of thermal properties and metal-mold behavior are underway to extend the supporting database for CAD systems. Computer and physical modeling of fluid flow in the tundish of a continuous steel slab caster has been conducted to optimize the processs and minimize transition slabs during continuous-continuous casting.
Richard Robertson, Professor Emeritus

2146B HH Dow

(734) 763-9867

Current research interests range from the molecular dynamics of mechanical relaxation of polymers to the high-speed, low-cost manufacturing of fiber composite structures and includes fracture processes in polymers and composites and failure analysis. Related to mechanical relaxation is the physical aging of polymer glasses. The nature of molecular motion in polymer glasses and the parameters that control the kinetics of physical aging are being studied. The goal is to be able to predict aging rates at normal service temperatures where experimental measurements would take too long. Current study of fracture processes ranges from fundamental studies of the mechanisms of crack propagation in brittle materials to the use of fracture in fiber composite structures for crash energy absorption.

Research into high-speed, low-cost fiber composite structure manufacturing involves several problems of the "liquid molding" process, in which liquid resin is injected into a closed mold containing a fiber preform. The problems being studied are the design and manufacture of the fiber preform and the displacement of air and the wetting of the fibers by the injected resin. A related problem being studied is the repair of such composite structures after damage.

Albert Yee, Professor Emeritus

Research activities focus on various aspects of the physical and mechanical behavior of polymer-based materials. The emphasis is on understanding the fundamental mechanisms governing their behavior, with the ultimate goal of modifying polymers on microscopic and macroscopic levels to enhance performance.

A new area of investigation relates to polymers for electronic devices and MEMS: low-K dielectrics, packaging, and thin films. Other current work includes investigations into the nature of cooperative molecular motions in glassy polymers and the effect of changes in the molecular architecture on these motions. These motions influence the diffusion, viscoelastic, and fracture behavior of polymers. Another group of projects studies the deformation and fracture mechanisms of multi-phase polymers. Methods of investigation include various mechanical characterization techniques, optical and electron microscopy, positron annihilation spectroscopy (in some cases utilizing a monoenergetic low energy positron beam), chemical synthesis, and numerical simulation.