Multi-functional Extreme Environment Surfaces: Nanotribology for Air and Space
Abstract
We have: *Discovered that ethanol extends silicon MEMS lifetimes at ultra-low coverages, and proposed fundamental mechanisms for the exceptional lubricating properties. *Derived a new multi-scale modeling code for continuum heat and current flow in nanowires at de-adhering gold-gold contacts. *Applied our finite-element algorithms techniques to investigate nanocomposites with grains down to 20 nm over a broad spectrum of extreme loading conditions. *Developed new models of surface roughness and materials properties for RF MEMS contact and the transition from plastic deformation to creep behavior. *Developed a classical potential energy function capable of accurately modeling chemical reactions in carbon, hydrogen, and oxygen containing materials, allowing first time studies of DiamondLikeCarbon (DLC) in the presence of water. *Discovered that the run-in friction behavior of NanoCrystallineDiamond coatings is strongly correlated with the structure of sp2 carbon in *Performed an STM study of boron-doped diamond films that revealed growth features possibly due to quantum nanoscale effects.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 14, 2010
- Accession Number
- ADA547131
Entities
People
- Jacqueline Krim
Organizations
- North Carolina State University