Dr. Jeffrey Bullard
Materials and Construction Research Division
Building and Fire Research Laboratory
100 Bureau Drive, Stop 8615
National Institute of Standards and Technology
Gaithersburg, MD 20899 USA
(301) 975-5725
FAX: (301) 990-6891
Dr. Bullard joined the Inorganic Building Materials Group of the Materials and Construction Research Division in 2002. He is working on the application of digital-image modeling methods to simulate the microstructure development of cement and concrete during hydration and under the influence of degradation mechanisms. He also is acting as the administrator of the Virtual Cement and Concrete Laboratory Consortium, which was established in 2001 to provide a collaborative research partnership, between NIST and industrial members, for developing and validating computer modeling software for rapid design and optimization of cement and concrete materials.
For two years prior to his coming to NIST, Dr. Bullard was a research specialist at 3M's Optoelectronic Packing Systems Technical Center. From 1995 to 1999, he was a faculty member in the Department of Materials Science and Engineering at the University of Illinois at Urbana-Champaign, where he worked on microstructure development of bulk and thin film ceramics. Dr. Bullard was an NRC Postdoctoral Research Associate at NIST from 1993 to 1995.
Dr. Bullard was the recipient of an NSF Early Career Development Award, and has organized symposia for The Materials Research Society and The American Ceramic Society. He is the author or coauthor of 25 technical papers and has delivered 19 invited lectures at universities and national conferences.
Last revised 12/28/04
E.J. Garboczi, J.W. Bullard and D.P. Bentz, "Virtual Testing of Cement and Concrete−USA 2004," Concrete International 26 (12), pp. 33-37 (2004).
E.J. Garboczi and J.W. Bullard, "Shape analysis of a reference cement," Cement and Concrete Research, 34 (10), pp. 1933-1937 (2004).
J.W. Bullard, "Stability of voids formed in cavities at liquid-solid interfaces," Journal of Colloid and Interface Science, 276 (1), 188-196 (2004). (PDF Version)
J.W. Bullard, C. Ferraris, E.J. Garboczi, N. Martys, and P. Stutzman, "Virtual Cement," in Innovations in Portland Cement Manufacturing, Chapter 10.3, pp. 1311-1331, J.I. Bhatty, F.M. Miller and S.H. Kosmatka, eds., Portland Cement Association (2004).(PDF Version)
J.W. Bullard, "User's Guide to the Virtual Cement and Concrete Testing Laboratory, Version 1.1, National Institute of Standards and Technology Internal Report 6968, 54p. (2003). (PDF Version)
J.W. Bullard, "Virtual Cement and Concrete Testing Laboratory Consortium Annual Report 2002," National Institute of Standards and Technology Internal Report 6962, 41 p. (2003). (PPF Version)
M. Menon, Z. Xu, and J.W. Bullard, "A Novel Thin Film Phase of Oriented MgO Grown from a Liquid Solution," J. Crystal Growth, 233 [1-2], 389-398 (2001).
R.L. Thayer, S.R. Schmidt, S.E. Dorris, J.W. Bullard, and M.T. Lanagan, "Reactive Sintering and Retrograde Densification of Bulk Bismuth-Based Superconductors," J. Am. Ceram. Soc., 83 [10], 2365-2368 (2000).
J.W. Bullard and M. Menon, "Equilibrium Shapes of Solid Particles on Elastically Mismatched Substrates," J. Colloid and Interface Sci. 219 [2], 320-326 (1999).
J.W. Bullard and A.W. Searcy, " Equilibria and Kinetics of Mass Transport Between Crystal Facets: A Comparison of Two Models," Acta Mater. 47 [10], 3057- 3061 (1999).
M. Menon and J.W. Bullard, "Constrained Phase Evolution in Gel-Derived Thin Films of Magnesium Oxide," J. Mater. Chem. 9, 949-953 (1999).
J.W. Bullard and M. Menon, "Morphological Signatures of Diffusion-Controlled and Interface Attachment-Controlled Mass Transport During Coarsening in a Two-Phase System". pp. 517-522 in Grain Growth in Polycrystalline Materials III, TMS, Pittsburgh, PA, 1999.
J.W. Bullard, E.J. Garboczi, and W.C. Carter, "Interplay of Capillary and Elastic Driving Forces During Microstructural Evolution: Applications of a Digital Image Model," J. Appl. Phys. 83 [8], 4477-4486 (1998).
M. Menon, J.L. Warren, and J.W. Bullard, "Synthesis of Magnesia Powders from an Alkoxide Precursor". pp. 217-222 in Ceram. Trans. 95. Edited by S. Komarneni, S. Sakka, P.P. Phule, and R.M. Laine. American Ceramic Society, Westerville, OH, 1998.
A.W. Searcy, J.W. Bullard, and D. Beruto, "Influences of Interparticle Fracture and Shear on Intermediate Stage Sintering". pp. 247-254 in Ceramic Microstructures: Control at the Atomic Level. Edited by A.P. Tomsia and A.M. Glaeser. Plenum Press, New York, 1998.
M. Yeadon, J.C. Yang, R.S. Averback, J.W. Bullard, D.L. Olynick, and J.M. Gibson, "In-Situ Observations of Classical Grain Growth Mechanisms During Sintering of Copper Nanoparticles on (001) Copper," Appl. Phys. Lett. 71, 1631-1633 (1997).
J.W. Bullard and A.W. Searcy, "Microstructural Development During Sintering of Lithium Fluoride," J. Am. Ceram. Soc. 80 [9], 2395-2400 (1997).
J.W. Bullard, "Numerical Simulations of Transient-Stage Ostwald Ripening and Coalescence in Two Dimensions," Mater. Sci. Eng. A 238, 128-139 (1997).
J.W. Bullard, "Digital-Image-Based Models of 2D Microstructural Evolution by Surface Diffusion and Vapor Transport," J. Appl. Phys. 81 [1], 159-168 (1997).
M. Yeadon, J.C. Yang, R.S. Averback, J.W. Bullard, D.L. Olynick, and J.M. Gibson, "In-Situ Transmission Electron Microscopy of the Sintering of Sputtered Cu Nanoparticles on (001) Cu," Microscopy and Microanalysis 3 Supp. 2, 401-402 (1997).
M. Yeadon, J.C. Yang, R.S. Averback, J.W. Bullard, and J.M. Gibson, "In-Situ TEM Study of the Sintering of Copper and Silver Nanoparticles on (001) Cu". pp. 257-260 in Inst. Phys. Conf. Ser. 153, (1997).
A.W. Searcy, J.W. Bullard, and W.C. Carter, "Possible Explanations for Transient Neck Formation Between Pairs of {100} Faceted Particles," J. Am. Ceram. Soc. 79 [9], 2443- 2451 (1996).
J.W. Bullard and E.J. Garboczi, "Comment on ‘A Lattice Model for Solid State Sintering: Simple Particle Arrays’ ," Comput. Mater. Sci. 6, 350-352 (1996).
J.W. Bullard and W.C. Carter, "Numerical Determination of Critical Strain Rate for Neck Rupture for Evaporation-Condensation Sintering of Isotropic Particles". pp. 45-50 in Sintering Technology. Edited by G.L. Messing, R.M. German, and R.G. Cornwall. Marcel Dekker, New York, 1996.
J.W. Bullard, E.J. Garboczi, W.C. Carter, and E.R. Fuller, Jr., "Numerical Methods for Computing Interfacial Mean Curvature," Comput. Mater. Sci. 4, 103-116 (1995).
A.W. Searcy and J.W. Bullard, "Thermodynamics and Kinetics of Shape Changes of Faceted Particles," J. Am. Ceram. Soc. 77 [9], 2315-2318 (1994).
J.W. Bullard, A.M. Glaeser, and A.W. Searcy, "Shape Changes by {100} Lithium Fluoride Ridge-Channel Arrays and of Lithium Fluoride Particles at Sintering Temperatures," J. Am. Ceram. Soc. 77 [9] 2319-2326 (1994).
J.W. Bullard, A.M. Glaeser, and A.W. Searcy, "Thermodynamic and Kinetic Characteristics of Variations in Shapes of Ridges Etched into {100} Lithium Fluoride Surfaces". pp. 247-253 in Proc. Mater. Res. Soc 238. Materials Research Society, Warrendale, PA, 1991.
Books Authored or Edited
"Computational and Mathematical Models of Microstructural Evolution". Proc. Mater. Res. Soc. 529. Edited by J.W. Bullard, L.-Q. Chen, R.K. Kalia, and A.M. Stoneham. Materials Research Society, Warrendale, PA, 1998.
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