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Haydn N.G. Wadley
| Contact Information |
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| Office: |
Wilsdorf Hall Room 207A |
| Address: |
395 McCormick Road
Mats Science Eng, RM 112 |
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P.O.Box 400237 |
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Charlottesville, VA 22904-4237 |
| Phone: |
(434) 982-5670
(Assistant, Sherri Sullivan) |
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(434) 982-5671 (Direct) |
| Fax: |
(434) 982-5677 |
Position
University Professor and
Edgar A. Starke, Jr. Research Professor of
Materials Science and Engineering
Education
1979 Ph.D., Physics, University of Reading, UK
1974 B.S., Chemical Physics (First Class Honors),
University of Reading, UK
Research
My research group's interests are focused upon the synthesis of high
performance materials for aerospace structures and spin electronic devices.
It addresses fundamental aspects
of their synthesis and the linkages between processing
and performance.
Currently, we are exploring
methods for making
cellular materials, depositing spintronic devices, and
synthesising thermal barrier coating
systems. Our approach combines
structure property relationships (to identify the optimal material
states needed for particular applications) with predictive process
modeling, in-situ sensing and model predictive control to deliver
materials whose microstructural states are optimized.
We have developed several patented methods for making cellular metals and have
explored their application as novel multifunctional materials that
enable load supporting structures to perform other functions such as
impact protection, power storage, shape morphing and thermal
management. Our work in spin based electronics (Spintronics) has
explored the fabrication of improved spin valves and magnetic tunnel
junctions by controlling atomic assembly during hetero metal
deposition and reactive tunnel barrier formation. The group's
research in thermal barrier coating systems has led to improvements in
the vapor phase processes used for the deposition of these
multilayered coatings and has begun to explore new compositions for
intermetallic bond coats and the ceramic over-layers that will extend
their use temperature.
We make extensive use of atomistic modeling
(Monte Carlo and Molecular Dynamics methods) to
analyze vapor phase atomic transport and to explore atomic and
molecular self assembly during the growth of thin films and
coating's. We have developed state of the art codes for
simulating the assembly of metallic multilayers, metal-metal oxide
systems and many semiconductors. The group's earlier sensor research
has explored the interaction of ultrasonic and electromagnetic fields
with materials. It led to the development of laser ultrasonic,
dielectric spectroscopy, microwave scattering, acoustic emission,
laser induced luminescence and multifrequency eddy current sensors
that have been widely applied to materials as diverse as aluminum
alloys and II-VI semiconductors.
The group originally helped pioneer
the integration of insitu sensing with predictive
process modeling and feedback control concepts - an approach now referred to as
intelligent
processing of materials (IPM).
Two
start-up companies (Directed Vapor Technologies International. and
Cellular Materials International.) have been spun out of the
group. They are commercializing a vapor depositing technology
(directed vapor deposition) and several processes for making periodic
cellular materials. I have published 392 papers in journals and
conference proceedings, co-authored one book on Cellular Metals,
co-edited 6 conference proceedings and hold 11 patents with many others (25)
pending.
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