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Mechanical Properties of Metals
Expert has studied aluminum alloys from the 2xxx, 5xxx, 6xxx and 7xxx series and studied their grain size, tensile properties, heat treatments, corrosion resistance, and fatigue behavior (both room temperature stress - life (S-N) and crack growth behavior). His work…
Electrical Connectors
Expert has applied his physics background to generate a fundamental understanding of temperature generation and material transport in electrical contact spots (a-spots) in bulk electrical interfaces. Over 25 years, his research showed that 1) Sintering effects occur in a-spots even…
Metallurgical Engineering
Expert has 30 years of experience in providing effective, unbiased forensic and materials engineering and failure analysis. His knowledge enables him to evaluate the data obtained by the latest materials diagnostic evaluation methods. Expert has a comprehensive understanding of failure…
Machinability, Cutting Tools, Workpiece Material Development, and Surface Integrity
Expert's company is internationally recognized for its work in developing and distributing data for machining of a wide variety of materials. It's the premier source for machining data (specific operating conditions), process engineering, machinability testing, and machine tool and cutting…
Gear Design & Analysis
HELICAL GEAR DESIGN; SPUR GEAR DESIGN; GEAR TOOTH. Expert has extensive experience in the design and analysis of spur and helical gears. He is the author of the computer programs GEARCALC and AGMA218, which are widely used by the gear…
Vacuum Processes, Optical Multilayer Thin Films, Ophthalmic Lenses, Photochromic Dyes, Diamond film
THIN FILM, HIGH VACUUM, THIN-FILM DEPOSITION PROCESS. Expert has expertise in many aspects of thin film deposition processes including physical vapor deposition, rf and dc magnetron sputtering, ion beam sputtering, ion-assisted deposition, and chemical vapor deposition (CVD). He developed an…
Electronic Reliability & On-Chip ESD Protection
Expert currently works on predicting the electric breakdown of silicon dioxide gate dielectric. He is knowledgeable of the electric breakdown characteristics of silicon and air. Additionally, he has studied the effects of electric field on the reliability of semiconductor devices.…
Skeletal Biomechanics, Design and Evaluation of Orthopaedic Implants, Artificial Joints, etc.
Expert's research interest centers on the biomechanics of bone, cartilage, tendons, and ligaments. This includes studying the causes of fracture of bone and the mechanics of fracture healing. Other areas of orthopaedic biomechanics include the design, development, and evaluation of…
Electrical Connector Design and Materials, Electrical connector failure analysis, Forensic support
ELECTRIC CONTACT; ELECTRICAL CONNECTOR DESIGN. Expert (pronounced mro-kow-ski) has extensive experience studying metals and metal surfaces related to electrical conduction processes and how they occur in bulk and across interfaces. Such an understanding is a critical first step in the…
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,…