Nathan Bailey
Nathan Bailey, Ph.D.
Senior Associate
Materials & Corrosion Engineering
Menlo Park

Dr. Bailey has 5 years of research experience in the fabrication, processing and characterization of metallic alloys and structural materials. He has expertise in oxide dispersion strengthened alloys, nanocomposite materials and steel. Dr. Bailey also has extensive experience in high resolution microscopy of engineering materials, including scanning electron microscopy (SEM), focused ion beam (FIB) machining, transmission electron microscopy (TEM) and atom probe tomography (APT). In addition, he has experience applying unsupervised machine learning approaches to the analysis of APT datasets.

Prior to joining Exponent, Dr. Bailey completed his Ph.D. at the University of California, Berkeley in the department of nuclear engineering, where his research focused on post-irradiation examination of high-dose ferritic oxide dispersion steels using APT. His thesis described the post-irradiation characteristics of the finely dispersed oxide nanoparticles and commented on the intricacies of analyzing such features using APT. In order to provide methodologies for repeatable APT analysis of precipitates, Dr. Bailey developed parameter selection techniques for cluster analysis of APT datasets based on a combination of statistical hypothesis testing and material constraints. Dr. Bailey also performed TEM studies characterizing the crystal structure of the oxide nanofeatures in ferritic oxide dispersion strengthened steels.

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Nuclear Engineering, University of California, Berkeley, 2016
  • M.S., Nuclear Engineering, University of California, Berkeley, 2014
  • B.S., Materials Science and Engineering, University of Washington, 2011
  • Invited to attend Atom Probe Tomography Standards Workshop, National Institute of Standards and Technology, 2014

    Nuclear Energy University Program Fellowship Recipient, academic years 2012-2014

    Best Paper Award – Nuclear Fuels and Structural Materials American Nuclear Society Meeting, 2012

    Distinguished Scholar Award – Microscopy and Microanalysis Conference, 2012

    National Security Internship Program Scholarship Recipient, academic years 2008-2010

    Fluor Foundation Scholarship Recipient, academic year 2007

Publications

Reichardt A, Lupinacci A, Frazer D, Bailey N, Vo H, Howard C, Jiao Z, Minor A, Chou P, Hosemann P. Nanoindentation and in situ microcompression in different dose regimes of proton beam irradiated 304 SS. Journal of Nuclear Materials 2017; 486:323-331.

Wang J, Toloczko M, Bailey N, Garner F, Gigax J, Shao L. Modification of SRIM-calculated dose and injected ion profiles due to sputtering, injected ion buildup and void swelling. Nuclear Instruments and Methods in Physics Research B 2016; 387:20-28.

Vo H, Frazer D, Bailey N, Traylor R, Austin J, Pringle J, Bickel J, Connick R, Connick W, Hosemann P. Characterization of a Viking Blade Fabricated by Traditional Forging Techniques. Journal of the Minerals, Metals and Materials Society 2016; 68:3174-3179.

Bailey N, Stergar E, Toloczko M, Hosemann P. Atom Probe Tomography Analysis of High Dose MA957 at Selected Irradiation Temperatures. Journal of Nuclear Materials 2015; 459:225-234.

Wu Y, Ciston J, Kraemer S, Bailey N, Odette GR, Hosemann P. The Crystal Structure, Orientation Relationships and Interfaces of the Nanoscale Oxides in Nanostructured Ferritic Alloys. Acta Materialia 2015; 111:108-115.

Bailey N, Stergar E, Toloczko M, Hosemann P. Initial APT Analysis of irradiated MA957. Microscopy and Microanalysis 2012; 18:1418-1419.

Bailey N, Stergar E, Toloczko M, Hosemann P. Initial APT Analysis of irradiated MA957. American Nuclear Society Transactions 2012; 106:1309-1310.

Prior Experience

Affiliate Researcher, Lawrence Berkeley National Laboratory’s National Center for Electron Microscopy, 2012-2016

Graduate Research Intern, Idaho National Laboratory’s Center for Advanced Energy Studies Microscopy and Characterization Suite, Summer 2013

Graduate Research Intern, Pacific Northwest National Laboratory – Nuclear Materials group, Nov. 2015-Jan. 2016

Undergraduate Research Intern, Pacific Northwest National Laboratory – Solid Oxide Fuel Cell group, Summer 2008, 2009, 2010

Professional Affiliations

Berkeley Institute for Data Science

American Nuclear Society

Microscopy Society of America

Microanalysis Society

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Nuclear Engineering, University of California, Berkeley, 2016
  • M.S., Nuclear Engineering, University of California, Berkeley, 2014
  • B.S., Materials Science and Engineering, University of Washington, 2011
  • Invited to attend Atom Probe Tomography Standards Workshop, National Institute of Standards and Technology, 2014

    Nuclear Energy University Program Fellowship Recipient, academic years 2012-2014

    Best Paper Award – Nuclear Fuels and Structural Materials American Nuclear Society Meeting, 2012

    Distinguished Scholar Award – Microscopy and Microanalysis Conference, 2012

    National Security Internship Program Scholarship Recipient, academic years 2008-2010

    Fluor Foundation Scholarship Recipient, academic year 2007