Jason Sebastian, Ph.D.

Manager of Technology and Product Development


Ph.D. Materials Science and Engineering, Northwestern University, 2004, dissertation entitled: “Nanoscale Three-Dimensional Studies of Segregation at Ceramic/Metal Interfaces”

CPGS Materials Science and Metallurgy, University of Cambridge, Cambridge, UK, 1997

B.S. Ceramic Engineering with Highest Honors, and B.A. Philosophy Summa Cum Laude, University of Illinois at Urbana-Champaign, 1996


Jason T. Sebastian, Ph.D. is a specialist in the fields of nanostructural materials characterization and computational materials design. Since joining QuesTek in 2006, his work has focused on: the development of high strength steels for structural and power transmission applications; non-toxic, high-strength/low-friction Cu-based alloys to replace Pb-containing bronzes; a low-cost, castable titanium alloy; a highly-processable Ni-based superalloy; advanced soft magnetic alloys; and other computationally-designed alloys. His past research activities include extensive experience with advanced characterization techniques including electron microscopy and atom-probe tomography. Prior to joining QuesTek, he was a Staff Scientist for Imago Scientific Instruments, a world leader in metrology and analysis equipment and well known for their advanced local electrode atom-probe (LEAP) atom-probe instruments.

Honors, Awards and Patents

His professional awards include pending U.S. patent US 2009/0199930 A1 “Secondary Hardening Gear Steel”. His other awards include, for example, a Department of Defense National Defense Science and Engineering Graduate Fellowship (1998-2001 academic years) and a Winston Churchill Foundation Scholarship (1996-1997 academic year).

Professional Associations

He is active in numerous associations including: ASM International; Materials Research Society (MRS); and The Minerals, Metals, and Materials Society (TMS).

Publications and Presentations

He is the author or creator of numerous publications and presentations which have appeared in industry leading periodicals and venues, such as Superalloys 2008, Gear Technology, Ultramicroscopy, Microscopy and Microanalysis, Interface Science, theAeroMat Conference 2008, and the TMS 2009 Annual Meeting.