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Materials Science and Engineering, University of Michigan

  MSE / People / Faculty / Tresa Pollock

Bond Coats and Thermal Barrier Coatings
Sponsor: National Science Foundation - European Union Project

In this program a multidisciplinary US-EU scientific team has been integrated to undertake a collaborative program to study the dynamics of layered, multifunctional surfaces. The focus is on coating systems that provide both thermal insulation and oxidation/corrosion protection for thermostructural components. The overarching intellectual challenge

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Rapid Assessment of the Role of Microstructural Variability in the Fatigue Behavior of Superalloys Using Ultrasonic Fatigue
Sponsor: DARPA

The objective of this research program is to conduct a critical investigation of the capabilities of ultrasonic fatigue techniques in life prediction of nickel base superalloys. With DARPA support we will investigate the role of microstructure variability on the fatigue behavior of superalloy turbine disk

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Focused Research Group onFundamental Aspects of Design of New Structural Magnesium Alloys
Sponsor: National Science Foundation

The objective of this multi-institutional Focused Research Group (FRG) is to investigate fundamental aspects of solidification, phase equilibria and deformation mechanisms in order to establish a strong foundation for the design of future high temperature magnesium systems. To accomplish this, a collaborative program between the

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Ruthenium Aluminides: Deformation Mechanisms and Substructure Development
Sponsor: Department of Energy

RuAl is a very unusual intermetallic compound among the large number of B2 compounds that have been identified and investigated in recent years. This material has a very high melting temperature of 2060˚C, low thermal expansion, high thermal conductivity and good corrosion resistance. Unlike most

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Femtosecond Laser-Assisted Health Monitoring of Critical Structural Components in Advanced Defense Systems
Sponsor: DARPA

Remarkable advances in ultrahigh-intensity lasers as sources of hyperspectral radiation offer unprecedented opportunities for probing and modifying the structure of advanced engineering materials. The objective of this MURI program is to develop the scientific basis for use of ultrafast lasers as materials diagnostics and microfabrication

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Local Strain Development and Property Variability in B2 Aluminides
Sponsor: Air Force Office of Scientific Research

In recent years the need for accelerated characterization and improved prediction of the properties of structural materials has become critical. Designs that utilize new structural materials require knowledge of not only average properties, but more importantly, minimum properties. Experimental generation of such information is costly

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Development of Microstructure and Micromechanism-Sensitive Property Models and Their Integration into the Design of Advanced Disk and Blade Turbine Systems
Sponsor: Air Force Office of Scientific Research

This research program is in collaboration with Ohio State University and Johns Hopkins University. The goal of the program is to develop improved models that will (a) incorporate more realistic representation of the relevant microstructures and micromechanisms, (b) enable modeling for a range of relevant

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Defects Associated with Solidification of Melt-Processed Superalloys for the Aerospace Industry and Their Impact on High-Temperature Mechanical Properties
Sponsor: Air Force Office of Scientific Research

Nickel-base single crystals are critical to the operation of high performance turbine engines, and in particular aircraft engines. In recent years grain defect formation during directional solidification has become an increasingly important problem due to the increasing levels of strengthening refractory alloying additions in these

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Knowledge-Oriented Materials Engineering of Layered Thermal Protection
Sponsor: Air Force Office of Scientific Research

This research effort is in collaboration with Johns Hopkins University, Harvard University, Princeton University, the University of California Santa Barbara and the Delphi Research Center. The main objective of NOMELT will be to develop a code that facilitates the more aggressive design of multilayered thermal

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Hold Time Dwell Fatigue in Advanced Disk Alloys
Sponsor: General Electric

MURI: Revolutionary Materials for Hypersonic Flight
Sponsor: Office of Naval Research

There are three planned approaches to provide a national forum for research on materials for hypersonic vehicles. (a) Provide direction for the basic materials research by using a test-bed protocol to ascertain performance requirements and property deficiencies. (b) Develop a modeling hierarchy applicable to a

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MURI: Hyperspectral and Extreme Light Diagnostics for Defense-Critical Advanced Materials and Processes
Sponsor: Air Force Office of Scientific Research

This five year Multidisciplinary University Research Initiative (MURI) involves a team of University of Michigan Investigators from Materials Science and Engineering (MSE), Physics and the Center for Ultrafast Optical Sciences (CUOS). The objective of this MURI program is to develop the scientific basis for use

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Strategies for Alloy Development for 1000 degree C Service in the Next Generation Nuclear Plant
Sponsor: Department of Energy

The very high temperature reactor (VHTR) has been selected by the Department of Energy for the Next Generation Nuclear Plant (NGNP) Project. This design calls for outlet gas temperatures of 1000 degrees and a lifetime of 60 years. These are extremely challenging conditions for the

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Single Crystal Growth by the Liquid Metal Cooling Process
Sponsor: General Electric and National Science Foundation

Acquisition of a Focused Ion Beam Workstation for Multidisciplinary Materials Research at the University of Michigan
Sponsor: National Science Foundation

Mechanisms of Deformation and Structure-Property Models for Creep in Rotor Materials
Sponsor: Pratt and Whitney Aircraft / DARPA

A model that predicts the strength of turbine disk alloys with complex multimodal micrsotructures has been developed. This model accepts either experimental or computed information on chemistry, physical properties and a range of microstructural parameters and the overall strength of the material can be predicted.

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Tools for 3-D Microstructural Characterizaion
Sponsor: Office of Naval Research

A fundamental precept in the characterization of practically all materials is the study of the materials microstructure. To accomplish this, conventional means have historically relied upon the visualization of a polished surface from the material. The limiting factor of such an analysis is the fact

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