1. 제 목 : Extraordinary nanoscale behavior of ordinary metals
2. 연 사 : Min Zhou
(Professor in the Schools of Mechanical Engineering and Materials Science and Engineering at the Georgia Institute of Technology)
<Education>
- Ph.D. degree, Brown University (1993).
- Postdoctoral fellow, California Institute of Technology (1993~1995).
<Research Interest>
- The behavior of materials at several length scales, emphasizing computational modeling with molecular dynamics simulations,finite element modeling and experimental investigation.
<Award / Member>
- US National Science Foundations CARER Award (2000).
- Sigma Xi Best Paper Award (2004).
- Woodruff Faculty Fellow at Georgia Tech.
- Fellow of the American Society of Mechanical Engineers (ASME).
3. 일 시 : 2008년 4월 21일(월) / 16:00 ~17:30
4. 장 소 : 301동 1512호 (15층 세미나실)
5. 내 용 :
At the nanoscale, the behavior of materials can be significantly different from that at the macroscopic or microscopic scale. Recently, we revealed that single-crystalline nanowires of copper, gold and nickel can be pseudoelastic and possess a shape memory that was previously unknown. This behavior arises from a reversible crystallographic lattice reorientation process within the face-centered cubic (FCC) structure and is driven by surface stress and high surface-to-volume ratios of the nanowires. This shape memory effect exists over a wide range of temperature and is associated with response times on the order of nanoseconds, making the nanowires attractive functional components for a new generation of sensors, transducers, and interconnects in nano-electromechanical systems
(NEMS). In this talk, I will discuss our research that led to the discovery and characterization of this novel phenomenon.
6. 문 의 : 기계항공공학부 조 맹 효 교수 (☏ 880-1693)