Expert is highly regarded for his knowledge of carbon composites and high performance organic fibers including carbon and graphite fibers. He is very knowledgeable of the development and consequences of structure on the performance of carbon fibers and has written on shape instabilities in composites.
Expert's research also includes formation of carbon and ceramic matrix composites for high temperature application by precursor pyrolysis and chemical vapor deposition (CVD). He has used liquid crystalline thermoplastic polymers for composite matrices. He developed pyrolytic graphite as reentry and rocket nozzle material and has used silicon carbide to produce optical quality, non-stick molds for glass lenses. He discovered shape stable unsymmetric composites and has studied hygrothermally shape stable composites and filament winding of complex geometry shapes. He is very familiar with the properties and applications of mesophase pitch. He presented a paper on the use of expert systems for manufacturing composite materials.
Expert may consult nationally and internationally, and is also local to the following cities:
Atlanta, Georgia - Augusta, Georgia - Athens, Georgia - Roswell, Georgia - Marietta, Georgia - Asheville, North Carolina - Greenville, South Carolina - Knoxville, Tennessee
Responsibilities: Expert provides consultation in materials science and engineering.
Years: 1990 to 1999
Department: Materials Science and Engineering
Responsibilities: He instituted the Materials Science & Engineering Department at Clemson.
Years: 1965 to 1990
Employer: Rensselaer Polytechnic Institute
Department: Materials Engineering
Responsibilities: Expert was the Director of the ONR/DARPA Center for high temperature structural composites, was the Co-Director for the Center of Rotorcraft Technology, and developed carbon fibers and ceramic matrix composites.
Years: 1960 to 1965
Employer: General Electric Research Lab
Department: Ceramic Studies
Responsibilities: He developed pyrolytic graphite, boron filaments, silicon carbide, fuel cells, and superconductors.
Years: 1958 to 1960
Employer: General Electric
Department: Missile and Ordnance Systems
Responsibilities: Expert studied the mechanical properties of graphite, and worked on reentry materials development.
Country / Region
Years: 1976 to 1992
Country / Region: France
Summary: Expert provided consultation in composites and CVD.
Years: 1975 to 1992
Country / Region: Germany
Summary: He consulted on pitch products and composites.
Years: 1984 to 1985
Country / Region: Switzerland
Summary: Dr. Diefendorfdid design work on a CVD furnace.
Years: 1988 to 2001
Country / Region: Japan
Summary: He providedconsultation on fibers andcomposites; and was the JTEC team Chairman for review of advanced composite technologyin Japan.
Years: 1982 to 1982
Country / Region: Brazil
Summary: Expert was part of a UNIDO team for development.
Associations / Societies
Expert is a member of ACS and a member of NMAB for high temperature composites. He has participated in the Division Advisory Group, Aeronautical Systems Division, United States Air Force.
He is the Associate Editor for Journal of Advanced Materials. He is past Materials Panel Chairman for "Aerospace Technology 2000," has served on the Aeronautical & Space Engineering Board, was JTEC Chairman for review of composites activities in Japan, and was NMAB Chairman for Advanced Fibers.
Awards / Recognition
Expert is a Fellow of ASM, ACerS, and the American Carbon Society. He has received the Skakel and Graffin Awards of the American Carbon Society, the Sauveur Award of ASM, the Mueller Award of ACerS, and the Humboldt Award for science and teaching from Humboldt Foundation.
Publications and Patents Summary
Expert is credited with 24 patents and over 160 publications, including several book chapters.
Expert Witness Experience
Expert served as an expert witness in two patent infringement cases, two product liability cases (at the corporate level), involving both deposition and court trials.
Training / Seminars
He has presented short courses for NASA, E.I. du Pont, B.F. Goodrich, Sikorsky, Eastman Kodak, and many universities, societies, and international conferences.
Expert can select and build specialty instrumentation and equipment.
Other Relevant Experience
His accomplishments include the manufacturing of boron filament on a carbon monofilament substrate, and detection of capacity loss during cycling in nickel/cadmium batteries.