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Wood Science, Wood Chemistry, Wood Coatings, Recycling
Expert has been involved in research in weathering of wood for the past 20 years. He studies wood discoloration, surface oxidation, and surface protections. He uses electron spin resonance to characterize free radicals (formation, termination) and mechanisms of weathering. He…
Polymer Coating Technologies
Expert has designed numerous formulations serving commercial and industrial coating needs. Expert has experience in the development of coating products for graphic arts, inks, paints, lacquers, elastomerics, adhesives, chemically resistant coatings, decorative coatings, photosensitive coatings, anti-corrosive, and abrasive coatings. The…
Polyurethanes; Crystalline Polymers; Dielectric Properties; Ion-containing Polymers
Summary: Although I retired from Penn State in July '18, I continue to be engaged in the scientific / technical side of polymer science and engineering. I am more actively seeking external consulting opportunities, including serving as an expert witness.…
Failure Analysis of Materials
MATERIAL FAILURE ANALYSIS; ADHESIVE FAILURE; COMPOSITE FAILURE; METAL FAILURE. Expert's (pronounced Wall-teen) principal occupation has been in the analysis of failures of machine components, including orthopedic (surgical) implants. Materials analyzed include metals and alloys of all types, polymers, elastomers, composites,…
Synthesis and Characterization of Ceramic Powders and Single Crystals
Expert has used microencapsulation as a method to prepare multicomponent ceramic powders containing two to five components. He developed (and is in the process of patenting) the first dry microencapsulation process that also can be used as a granulation method.…
Cryogenic Materials
AUSTENITIC STAINLESS STEEL. Expert has expertise in the development of new nitrogen-strengthened steels. He was the U.S. representative to the High Nitrogen in Steels International Conference. He has also published three review papers and about 50 technical papers on low-temperature…
Thin Films, Coatings, and Instruments
Expert has more than fifteen years of experience in the areas of experimental thin films and coatings. The range of thin films include, AL, Cr, Ni-Cr, Pd, Au, SeGe, In, polyvinylalcohol, polyvilylchloride, Si0x, electroless Au, electroless Ni, and electroless Pd.…
Dielectric Phenomena
Some of Expert's prior work has centered on the design and appraisal of transformer insulation structures, with particular emphasis on oil/cellulose systems. This work has involved both fundamental research on mechanistic aspects and the implications for design. He has been…
Design/Manufacturing & Materials
MATERIAL SCIENCE. Expert (prefers Expert ) has expertise in many aspects of design and manufacturing, in particular, materials selection, processing, forming, shaping, and materials properties, behavior, and performance. He is a well-known expert in mechanics of materials, deformation processing of…
Rubber and Adhesion Technology
RUBBER SCIENCE & TECHNOLOGY; RUBBER TESTING. Expert has consulted widely in the area of rubbery materials, including compounding, processing, and physical-mechanical properties such as fatigue, cut growth, and aging. He has carried out research on rubber blends, particulate reinforcement, compatibilization,…