• Angastiniotis, Nicos

Abstract

“Nanomaterials By Design” presents an immense research challenge. To realize the promise of nanomaterials, nanoscale components must be incorporated into larger-scale materials, products, and systems while retaining their novel attributes. A key challenge is to develop the capabilities to precisely design and build nanoscale materials that will predictably exhibit desired properties and to preserve those properties through cost-effective scale-up into safe, commercial materials that deliver needed functions. (R&D Roadmap for Nano-materials by Design, December 2003). Even though a large number of effective processing technologies are available that yield high surface area nano-sized particles of various compositions, there is still an insurmountable difficulty in utilizing such nano-sized particles for industrial applications that involve surface deposition (due to their poor fluidization properties) or further nanoparticle processing, as is the case in net shape component fabrication (due to their susceptibility to contamination). Whilst the seminar will be addressing these key issues for the future, it will put forward an innovative methodology which accrues both cost effective and scale-up of materials with the desired properties, by conserving the nano-sized particle properties within the manufactured structures. The methodology satisfies the need for an appropriate technology that is geared towards the build up of macro-structured agglomerates of nano-sized particles. These nanostructured particles when available in bulk quantities are intrinsically suited for net shape and surface fabrication. Such capability enables the tailoring of local microstructural composition thus yielding functionally graded nanostructured materials with controlled variation of their physico-chemical properties. About the Speaker: Nicos Angastiniotis holds a B.S. in Mechanical Engineering, an M.S. in Mechanics and Materials Science and a Ph.D. in Materials Science and Engineering from Rutgers, The State University of NJ, in US. While at Rutgers, he had been funded by the United States Office of Naval Research (ONR) to work on a wide range of projects and initiatives on the synthesis and processing of nanostructured materials. The primary mission of his research has been directed towards the scientific and technical repercussions of the bulk synthesis of nanophase particulates. His work has produced pioneering research and spearheaded among various other breakthroughs the development of a United States Patent (U.S. Patent 5,776,264) in addition to twenty conference and journal publications. He had also been a designated referee for the Nanostructured Materίals Journal and held in succession R&D positions at Degussa-Hulls Corp. (South Plainfield, NJ) and Nanodyne Inc. (New Brunswick, NJ) before joining the Solid State Physics Section of the Aristotle University of Thessaloniki. He joined the Higher Technical Institute in 1998 where apart from holding a Mechanical Engineering Lecturing position has initiated the foundation of the Nanomaterials Research Laboratory. The Lab today is a leading member of an international well knit network that focuses on the production and utilisation of tailor-made, knowledge-based nano-phased multifunctional materials with highly controlled microstructures and size distributions. For additional information: Tel: 22-892251, Email: ece@ucy.ac.cy For a list of seminars visit the course website: http://www.eng.ucy.ac.cy/cpitris/courses/ECE701/

Topics

• nanoparticle
• Deposition
• impedance spectroscopy
• microstructure
• surface
• susceptibility
• joining