DUNAND, DAVID - Northwestern University - Department of Materials Science and Engineering

个人简介

Ph.D. Metallurgy, MIT, Cambridge, MA B.S., M.S. Materials Engineering, Swiss Federal Institute of Technology, Zurich, Switzerland

研究领域

Physical and Mechanical Metallurgy of Multiphase Metallic Materials. My research focuses on metallic alloys, composites, and foams, with particular emphasis on measuring and modeling their mechanical properties. Three main families of materials are being investigated: Dispersion-strengthened metals: aluminum with Al3X (X=Sc, Ti, Zr, Li, rare-earth elements) nano-size precipitates, for energy-efficient transportation, nickel and cobalt-base superalloys with L12 precipitates, and iron-base ferritic superalloys with B2 precipitates. Metallic foams: Foams based on titanium (Ti, Ti-6Al-4V) and nickel for aerospace or implant implications; Foams from shape-memory alloys (Ni-Ti and Ni-Mn-Ga) for biomedical implants or actuators; Freeze cast Cu-, Co-, Fe-, W- and Ni- foams for electrodes in energy applications; 3D printed metallic scaffolds using ink precursors. An additional area of study is the use of synchrotron X-ray radiation to study strains, phase composition and texture in battery materials, structural composites, archeological alloys, and biomineralized materials (bone and tooth).

近期论文

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Asta, M.; Ghosh, G.; Dunand, D.C.; Vo, N.Q.; Liebscher, C.H., “A hierarchical microstructure due to chemical ordering in the bcc lattice: Early stages of formation in a ferritic Fe-Al-Cr-Ni-Ti alloy”, Acta Materialia, (2015) Dunand, David C.; Zheng, Peiqi; Kucza, Nikole J.; M?_llner, Peter; Wang, Zilong, “Effect of directional solidification on texture and magnetic-field-induced strain in Ni-Mn-Ga foams with coarse grains”, Acta Materialia, (2015) Dunand, D.C.; Witherspoon, C.; Zheng, P.; Chmielus, M.; M?_llner, P., “Effect of porosity on the magneto-mechanical behavior of polycrystalline magnetic shape-memory Ni-Mn-Ga foams”, Acta Materialia, (2015) Dunand, David C.; Kucza, Nikole J.; Patrick, Charles L.; M?_llner, Peter, “Magnetic-field-induced bending and straining of Ni-Mn-Ga single crystal beams with high aspect ratios”, Acta Materialia, (2015) Ren, Y.; Dunand, D.C.; Zheng, P.; M?_llner, P.; Wang, Z.L., “Superelasticity by reversible variants reorientation in a Ni-Mn-Ga microwire with bamboo grains”, Acta Materialia, (2015) Dunand, David C.; Almer, Jonathan; Glazer, Matthew P. B.; Cho, Jiung; Okasinski, John, “In Operando Strain Measurement of Bicontinuous Silicon-Coated Nickel Inverse Opal Anodes for Li-Ion Batteries”, Advanced Energy Materials, (2015) Dunand, D.C.; Young, M.L., “Comparing Compositions of Modern Cast Bronze Sculptures: Optical Emission Spectroscopy Versus x-Ray Fluorescence Spectroscopy”, JOM, (2015) Dunand, David C.; Zheng, Peiqi; Kucza, Nikole J.; Patrick, Charles L.; M?_llner, Peter, “Mechanical and magnetic behavior of oligocrystalline Ni-Mn-Ga microwires”, Journal of Alloys and Compounds, (2015) Dunand, David C.; Gao, Yan; Zheng, Peiqi; Yuan, Bin; Zhu, Min, “Effect of directional solidification and porosity upon the superelasticity of Cu-Al-Ni shape-memory alloys”, Materials and Design, (2015) Dunand, David C.; Sep?_lveda, Ranier; Plunk, Amelia A., “Microstructure of Fe 2 O 3 scaffolds created by freeze-casting and sintering”, Materials Letters, (2015) Brinson, L.C.; Dunand, D.C.; Bewerse, C., “Microstructure and mechanical properties of as-cast quasibinary NiTi-Nb eutectic alloy”, Materials Science and Engineering A, (2015) Dunand, David C.; Wang, Cong; Wang, Liqiang, “Microstructure and Strength of NiTi-Nb Eutectic Braze Joining NiTi Wires”, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, (2015) Dunand, David C.; Wang, Cong, “Microstructure Evolution During Al, Ti, and Mo Surface Deposition and Volume Diffusion in Ni-20Cr Wires and Woven Structures”, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, (2015) Dunand, David C.; Wang, Cong, “Nanoscale Cellular Structures at Phase Boundaries of Ni-Cr-Al-Ti and Ni-Cr-Mo-Al-Ti Superalloys”, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, (2015) Philippe, T.; Dunand, D.C.; Voorhees, P.W.; Erdeniz, D., “A phase-field study of the aluminizing of nickel”, Philosophical Magazine, (2015) Dunand, David C.; Erdeniz, Dinc; Sharp, Keith W., “Transient liquid-phase bonded 3D woven Ni-based superalloys”, Scripta Materialia, (2015) Dunand, David C.; Vo, Nhon Q.; Liebscher, Christian H.; Rawlings, Michael J.S.; Asta, Mark, “Creep properties and microstructure of a precipitation-strengthened ferritic Fe-Al-Ni-Cr alloy”, Acta Materialia, (2014) Dunand, D.C.; Seidman, D.N.; Vo, N.Q., “Improving aging and creep resistance in a dilute Al-Sc alloy by microalloying with Si, Zr and Er”, Acta Materialia, (2014) Zhao, L.; Ha, S.; Sharp, K.W.; Geltmacher, A.B.; Fonda, R.W., “Permeability measurements and modeling of topology-optimized metallic 3-D woven lattices”, Acta Materialia, (2014) Dunand, David C.; Zheng, Peiqi; Lindquist, Paul; Yuan, Bin; M?_llner, Peter, “Fabricating Ni-Mn-Ga microtubes by diffusion of Mn and Ga into Ni tubes”, Intermetallics, (2014) Dunand, David C.; Erdeniz, Dinc, “Microstructure development during pack aluminization of nickel and nickel-chromium wires”, Intermetallics, (2014)