Bio

​B.S. University of Kentucky, 1978​M.S. University of California - Berkeley, 1983​Ph.D. University of California - Berkeley, 1985

"It’s the excitement of not knowing that makes it interesting"

My research emphasizes two main areas: i) the application of in-situ high-resolution and analytical transmission electron microscope techniques to study mechanisms of phase transformations and the structure and properties of interphase boundaries at the atomic level, and ii) the use of valence electron energy-loss spectroscopy (plasmons) to understand and determine the physical properties of nanoscale materials and interfaces. In addition to selected publications provided below, I have authored or co-authored the following books in these research areas: "Interfaces in Materials" (1997), “In-Situ Electron Microscopy” (2012), and “Transmission Electron Microscopy and Diffractometry of Materials” (4th edition 2013). I have also had the pleasure of being a visiting professor at Osaka University (2006) and the University of Vienna (2007), and being involved in organizing the International Conference on Solid-Solid Phase Transformations in Materials (PTM) since 1994.

Research Interests

  • Phase Transformations
  • Interfaces
  • Materials Characterization
  • Material Physics
  • Crystallography and Diffraction
  • Scanning/Transmission Electron Microscopy
  • Electron Energy-Loss Spectroscopy

Selected Publications

  • "Application of Atom-Row Matching Concepts to Grain Boundaries", in Proc. Inter. Conf. on Solid-Solid Phase Transformations in Inorganic Materials 2005, The Minerals, Metals and Materials Society, Warrendale, PA, p. 79 (2005). J. M. Howe and A. R. S. Gautum
  • "In-Situ HRTEM Study of a Diffuse Interface in Au-Cu Alloy", in Proc. Inter. Conf. on Solid-Solid Phase Transformations in Inorganic Materials 2005, The Minerals, Metals and Materials Society, Warrendale, PA, p. 93 (2005). A. R. S. Gautum, N. Raffler, J. M. Howe and K. Chatterjee
  • "Chemical Mixing and Growth Behavior of Ag and Au Nanocrystal Mixtures", in Proc. Inter. Conf. on Solid-Solid Phase Transformations in Inorganic Materials 2005, The Minerals, Metals and Materials Society, Warrendale, PA, p. 797 (2005). T. M. Murray and J. M. Howe
  • "Atomic-Level Dynamic Behavior of a Diffuse Interphase Boundary in a Au-Cu Alloy", in Proc. 16th International Microscopy Congress, IMC-16, Volume 3 - Materials Science, Sapporo, Japan, September, 2006, CD Paper IMC-16-00001812. J. M. Howe, A. R. S. Gautam, K. Chatterjee and F. Phillipp
  • "New Techniques for Determining the Properties of Materials and Interfaces During In-Situ Heating in the TEM", (plenary paper) in Proc. SANKEN International Symposium on Nanoscience and Nanotechnology 2006, Osaka, Japan, p. 23 (2006). J. M. Howe, S. K. Eswaramoorthy and V. P. Oleshko
  • "New Techniques for Determining the Properties of Materials and Interfaces During In-Situ Heating in the TEM", (invited paper) in Proc. 6th Japanese-Polish Joint Seminar on Materials Analysis, Toyama, Japan, p. 29 (2006). J. M. Howe, S. K. Eswaramoorthy and V. P. Oleshko
  • "Determining the Nanoscale Chemistry and Behavior of Interfaces and Phases in Al-Si(-Cu-Mg) Nanoparticles Using In-Situ TEM", (invited paper) in 14th European Microscopy Congress - Vol. 2, Aachen, Germany, p. 633 (2008). J. M. Howe, S. K. Eswaramoorthy and G. Muralidharan
  • "Determining the Chemistry and Behavior of Interfaces and Phases at the Nanoscale Using In-Situ TEM", (plenary paper) in 4th Handai Nanoscience and Nanotechnology International Symposium, Osaka, Japan (2008). J. M. Howe, S. K. Eswaramoorthy and G. Muralidharan
  • “Study of Dynamic Solid-Liquid Interfacial Phenomena in Hypereutectic Al-Si Alloy Using in situ HRTEM,” in Micros. Microanal., 20 (Supp. 2) (2014). M. M. Schneider and J. M. Howe
  • “Observation of a Metastable Cu Phase Formed at a Crystalline Si / Liquid Al-Alloy Interface in Al-Cu-Mg-Si Alloy”, in Proc. Intl. Conf. Solid-Solid Phase Transformations, PTM2015, TMS, Warrendale, PA, p. 1001 (2015). ISBN 978-0-692-43736-0. M. M. Schneider and J. M. Howe
  • "Dynamic HRTEM Observation of Metastable Cu Island Formation at a Solid Si – Liquid Al Interface" Acta Mater., 133, 224 (2017). M. M. Schneider and J. M. Howe
  • "Interfacial Plasmon at a Singular Solid-liquid Interface in a Partially Molten Aluminum Alloy" , Phys. Rev. B, 85, 195305 (2012). P. Palanisamy, W. Sigle and J. M. Howe
  • "Are Electron Tweezers Possible?" Ultramicroscopy, 111, 1599 (2011). V. P. Oleshko and J. M. Howe
  • "A Reciprocal-Space Model to Predict Orientation Relationships and Interface Planes: Part I – Approach," Philos. Mag. A., 91, 3203 (2011) A. R. S. Gautam and J. M. Howe
  • "The Role of Disconnections in Phase Transformations" , (invited paper) Prog. Mater. Sci., 54, 792 (2009). J. M. Howe, R. C. Pond and J. P. Hirth
  • "Determining the Nanoscale Chemistry and Behavior of Solid-Liquid Systems," Science, 318, 1437 (2007) S. K. Eswaramoorthy, J. M. Howe and G. Muralidharan
  • "Fractional Brownian Motion of an Al Nanosphere in Liquid Al-Si Alloy Under Electron-Beam Irradiation," Appl. Phys., 95, 5756 (2004). T. Yokota, M. Murayama, J. M. Howe and W. A. Jesser, J.