Los Alamos National Laboratory

Los Alamos National Laboratory

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James CE Mertens

James Mertens

Phone (505) 412-3211


• Micromechanics, Mechanical Behavior, and Failure Analysis • Material Synthesis and Processing • Metallurgy • Polymer Science • Sample Preparation for Surface Characterization and Tomography • X-ray Tomography and Radiography: Data Acquisition, Processing, and Analysis • X-ray Fluorescence (XRF) • Optical (OM) and Scanning Electron Microscopy (SEM) • Digital Image Processing • MATLAB: Programming and Quantification, Emphasis on Image Processing • LabVIEW: Programming and Application Development, Emphasis on System Control • Solid Edge: Part Design, Assembly Design, Simulation • Instrument Development: Design, Development, and Benchmarking • Material Selection and Decision Making


2011-2015 Arizona State University Tempe, AZ Ph.D. - Materials Science & Engineering

  • GPA 3.91
  • Focus on material micromechanics, failure and strengthening mechanisms, characterization, and modeling
  • Coursework: Structure and Mechanical Properties, Material Fracture Fatigue and Creep, Manufacturing   Methods, Electron Microscopy, Materials Physics, Thermodynamics, and Kinetics

2008-2011 Arizona State University Tempe, AZ BSE - Materials Science & Engineering

  • GPA 3.74
  • Graduated Magna Cum Laude
  • Coursework: Organic Chemistry, Chemical Processing, Physical Metallurgy, Ceramic Science,
  • Polymers & Composites, Materials Characterization, and Engineering Design.

LANL Positions

2015-Present Materials Science and Technology Division MST-7: Engineered Materials Performance and Qualifications Team Postdoctoral Research Associate


Professional Societies

2013-Present Material Advantage

2014-Present The International Society for Optics and Photonics (SPIE)



• Arizona State University Dean’s List Award Fall 2008, Spring 2009, Spring 2010, Fall 2010, Spring 2011 • Awarded participation in the Fulton Undergraduate Research Initiative (2010) • Graduated Magna Cum Laude from Arizona State University (2011) • Student researcher on Semiconductor Research Corporations Tasks 1292.086 and 1292.087 • Presenter at The Minerals, Metals & Materials Society Annual Meeting, San Antonio, TX USA (2013) • Presenter at The 2nd International Congress on 3D Materials Science, Annecy, France (2014) • Presenter at the SPIE Optics + Photonics Annual Meeting, San Diego, CA USA (2014) • The Outstanding Graduate Student Award, SEMTE, Arizona State University (2015)



MODULAR HIGH RESOLUTION X-RAY COMPUTED TOMOGRAPHY SYSTEM United States Patent Application 20150160354 Authors: Mertens, James C. E.; Williams, Jason J.; Chawla, Nikhilesh Application Number: 14/556714 Publication Date: 06/11/2015 Filing Date: 12/01/2014



1.    J.C.E. Mertens, J.J. Williams, and N. Chawla. “Note: Design and Construction of a Multi-Scale, High-Resolution, Tube-Generated X-Ray Computed-Tomography System for Three-Dimensional (3D) Imaging.” Review of Scientific Instruments 85, 1 (2014) 016103. 2.    J.C.E. Mertens, J.J. Williams, and N. Chawla. “Development of a Lab-scale, High-Resolution, Tube-Generated X-Ray Computed-Tomography System for Three-Dimensional (3D) Materials Characterization.” Materials Characterization 92 (2014) 36-48. 3.    J.C.E. Mertens, J.J. Williams, and N. Chawla. “A Study of Pb-Rich Dendrites in a Near-Eutectic 63Sn-37Pb Solder Microstructure via Lab-Scale Micro X-ray Computed Tomography (µXCT).” Journal of Electronic Materials 43, 12 (2014) 4442-4456. 4.    J.C.E. Mertens and N. Chawla. “A Study of EM Failure in a Micro-Scale Pb-Free Solder Joint using a Custom Lab-Scale X-Ray Computed Tomography System.” SPIE Optics and Photonics Proceedings (2014) 92121E-92121E-9. 5.    J.C.E. Mertens and N. Chawla. “Modeling and Characterization of X-Ray Yield in a Polychromatic, Lab-Scale, X-Ray Computed Tomography System.” Nuclear Instruments and Methods in Physics Research A 783 (2015) 110-116. 6.    J.C.E. Mertens, J.J. Williams, and N. Chawla. “A Method for Zinger Artifact Reduction in High-Energy X-ray Computed Tomography.” Nuclear Instruments and Methods in Physics Research A 800 (2015) 82-92. 7.    L.F. Silva, V. R. dos Santos, S. Paciornik, J.C.E. Mertens, and N. Chawla. “Multiscale 3D Characterization of Discontinuities in Underwater Wet Welds.” Materials Characterization 107 (2015) 358-366. 8.    J.C.E. Mertens, A. Kirubanandham, and N. Chawla. “Electromigration Mechanisms in Sn-0.7Cu/Cu Couples by Four Dimensional (4D) X-ray Microtomography and Electron Backscatter Diffraction (EBSD).” Acta Materialia 102 (2016) 220-230. 9.    J.C.E. Mertens, A. Kirubanandham, and N. Chawla. “In Situ Fixture for Multi-Modal Characterization During Electromigration and Thermal Testing of Wire-Like Microscale Specimens.” Microelectronics Reliability 55 (2015) 2345-2353. 10.    S. Das, P. Yang, S.S. Singh, J.C.E. Mertens, X. Xiao, N. Chawla, and N. Neithalath. “Effective Properties of a Fly Ash Geopolymer: Synergistic Application of X-ray Synchrotron Tomography, Nanoindentation, and Homogenization Models.” Cement and Concrete Research 78 (2015) 252-262.