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Contact Information:
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Joined MME in 1997
Ph.D. in Materials Science from University of Minnesota in 1997
Research Interests:
- Mechanical properties of thin films
- Micromechanics of fracture
- Adhesion
- Corrosion and environmentally assisted cracking
Recent Publications:
- "An energy method to analyze through thickness thin film fracture during indentation," K.R. Morasch and D.F. Bahr, Thin Solid Films, vol. 515, pp. 3298-3304 (2007)
- "Mechanical compliance of photolithographically defined vertically aligned carbon nanotube turf," C.M. McCarter, R.F. Richards, S. Mesarovic, C.D. Richards, D.F. Bahr, D. McClain, J. Jiao, Journal of Materials Science, vol. 41, pp. 7872-7878 (2006)
- "Structural and electrical characterization of PZT on gold for micromachined piezoelectric membranes," M.C. Robinson, D.J. Morris, P.D. Hayenga, J.H. Cho, C.D. Richards, R.F. Richards, D.F. Bahr, Applied Physics A, vol. 85, pp. 135-140 (2006).
- "Hydrogen effects on dislocation activity in austenitic stainless steel," K.A. Nibur, D.F. Bahr, and B.P. Somerday, Acta Materialia, vol. 54, pp. 2677-2684 (2006).
- "Optimization of electromechanical coupling for a thin-film PZT membrane: I. Modeling," J. Cho, M. Anderson, R. Richards, D. Bahr and C. Richards J. Micromech. Microeng., vol. 15 pp. 1797-1803 (2005)
National & International Recognition:
- Robert Lansing Hardy Award – TMS (2007)
- Bradley Stoughton Award for Engineering Education – ASM International (2003)
- Presidential Early Career Award for Scientists and Engineers (PECASE) (2000)
Links:
Investigating Deformation and Failure Mechanisms in Nanoscale Multilayer Metallic Composites
Objectives: Uncover fatigue damage suppression and ultimate failure mechanisms of NMM composites. Develop a novel fatigue experiment for NMM composites. Establish guidelines for designing NMM with optimum properties.
Uniqueness and Innovation: Design a trimetallic NMM composite (Cu/Ni/Nb) which might possess more superior properties than the two types of bimetallic systems(Cu/Ni & Cu/Nb). This might be achieved by building a new system that combines the two bimetallic systems with their respective interface strengthening mechanisms and properties.
Principal Investigators: H. M. Zbib, D.F. Bahr, S. Medyanik, and F. Akasheh
Partners: Los Alamos National Laboratory
Funding Agency: Department of Energy, Office of Basic Energy
