Ames National Laboratory is a government-owned, contractor-operated national laboratory of the U.S. Department of Energy (DOE), operated by and located on the campus of Iowa State University in Ames, Iowa. For over 70 years, the Ames National Laboratory has successfully partnered with Iowa State University, and is unique among the DOE laboratories in that it is physically located on the campus of a major research university. 

Many of the scientists and administrators at the Laboratory also hold faculty positions at the University and the Laboratory has access to both undergraduate and graduate student talent. 

Click on the names below to read more about our leadership team:

Adam Schwartz, Director

Adam SchwartzAdam Schwartz became Director of Ames National Laboratory in 2014. He is also a professor of Materials Science and Engineering in the College of Engineering at Iowa State University.

Prior to joining Ames National Laboratory in 2014, Schwartz had nearly 23 years of materials science research and management experience at Lawrence Livermore National Laboratory in Livermore, CA that spanned physical metallurgy to condensed matter physics with a particular focus on phase transformations, phase stability, and electronic structure of actinides and lanthanides. He held leadership positions for Plutonium Aging, Dynamic Properties of Materials, and Physics and Engineering Models programs.

He led the Lawrence Livermore National Laboratory team during the development of the Critical Materials Energy Innovation Hub and then continued on as the Developing Substitutes Focus Area Leader. In this role, he leveraged his expertise in metallurgy, condensed matter physics, and technical management to drive the innovation of substitute materials. The Energy Innovation Hub, known as the Critical Materials Institute, is led by Ames Laboratory.

Schwartz has authored over 100 journal articles, monographs, book chapters, technical reports and co-edited two editions of Electron Backscatter Diffraction in Materials Science. Schwartz holds B.S. and M.S. degrees in Metallurgical Engineering and a Ph.D. degree in Materials Science and Engineering, all from the University of Pittsburgh.

James Morris, Chief Research Officer

James MorrisJames Morris became Ames National Laboratory’s Chief Research Officer in June 2019. As Chief Research Officer (CRO), Morris is responsible for initiating, developing and supervising Ames National Laboratory’s scientific divisions, institutes and programs. The CRO formulates and evaluates new initiatives in support of Ames National Laboratory’s mission – to create materials, inspire minds to solve problems, and address global challenges – often emphasizing cross-disciplinary collaborations with other DOE National Laboratories, academia, and industry.

 Morris’ research has focused on a variety of materials science challenges, including alloy design, high entropy alloys, metallic liquids and glasses, and hydrogen storage and other confined fluids in porous media. He earned his B.S. in physics at Colorado State University in 1987, and his Ph.D. in theoretical physics from Cornell University in 1992.  He worked at Ames National Laboratory first as a postdoctoral associate then as a scientific staff member.  In 2003, he joined the Alloy Behavior and Design group at Oak Ridge National Lab (ORNL), and in 2005 also became joint faculty with the University of Tennessee’s Materials Science and Engineering department.  At ORNL, Morris served as Deputy Director for the DOE Energy Frontier Research Center for Defect Physics, as Lab Coordinator for the Basic Energy Sciences - Materials Science and Engineering program, and as Materials Theory Group Leader. 

Steve Hamilton, Chief Operations Officer

Steve HamiltonSteve Hamilton joined Ames National Laboratory as Chief Operations Officer in August 2019. Prior to coming to Ames National Laboratory, Hamilton was the Vice President of Operations at Kratos Real Time Logic, Inc., an engineering company in Colorado. He has also held numerous other operations leadership positions in military and commercial organizations.

As the manager of most operational business functions of the Laboratory, Hamilton is crucial to the Laboratory’s operational excellence, efficiency, and agility, including administration of the contract between the Department of Energy and Iowa State University to run Ames Lab.

Hamilton received his B.S. in Industrial Technology from Southern Illinois University-Carbondale,  M.S. in Industrial Management from Central Missouri State University and M.A. in Organizational Management from George Washington University.

Chelsey Aisenbrey, Director of Planning and Performance

Andrea SpikerChelsey Aisenbrey has been Director of Ames National Laboratory’s Planning and Performance since 2021. Prior to that, she served as the Lab’s Director of Human Resources.

As Performance Management director, Aisenbrey and her staff work collectively to improve organizational effectiveness to achieve the Lab’s mission and goals. The Performance Management team works to enhance the Laboratory’s Quality Assurance, Contractor Assurance, Learning and Development, Assessments, and Documents and Records. Performance Management focuses on ensuring Laboratory compliance, improves training throughout the Laboratory, develops Laboratory-wide awareness for Quality Assurance, and establishes Laboratory performance indicators and metrics to emphasize how we are fulfilling and supporting the DOE mission.

Aisenbrey holds a B.A. degree in Business Administration with an emphasis in Human Resources Management from Grand View University and an MBA with a specialization in Human Resources from the University of Wisconsin – Whitewater.

Julienne Krennrich, Innovations Partnerships Program Manager

Julienne KrennrichJulienne Krennrich joined Ames National Laboratory as Innovation Partnerships Program manager in June 2018. She previously worked for Iowa State University as Assistant Director of the Engineering Research Institute which gave her broad program management experience, including negotiation of complex awards and contracts. She also worked extensively with federal and industry partners to advance strategic research and commercialization goals.

As IPP Manager, Krennrich leads her team in developing, enhancing, and maintaining long-term strategic partnerships with industrial sponsors and partners. She also serves as the Laboratory’s Technology Transition Officer, represents the Laboratory at DOE and as part of the National Laboratory Technology Transfer (NLTT) executive group, the Technology Transfer Working Group (TTWG), and the Federal Laboratory Consortium.

Krennrich earned a PhD from ISU in Experimental Condensed Matter Physics with an emphasis on the electromagnetic properties of strongly correlated electron systems, particularly those found in some classes of high temperature superconductors. She also holds an MBA in Finance from ISU.

Thomas Lograsso, Director, Division of Critical Materials

Tom Lograsso

Thomas Lograsso was named Director of the Division of Critical Materials when he was appointed as Director of the Critical Materials Innovation Hub (CMI), a DOE Energy Innovation Hub led by Ames National Laboratory, in May 2020. He served as CMI interim director from November 2019 to May 2020, while continuing to serve as Deputy Director of Ames National Laboratory, a position he held from 2013 until May 2020. He served as Interim Ames National Laboratory Director prior to the hiring of Adam Schwartz as Director in 2013-2014. He led the CMI Developing Substitutes Focus Area from 2014 to 2019 and was the Ames National Laboratory Division Director for Materials Sciences and Engineering from 2008 to 2013.

Lograsso has been a materials scientist at the Ames National Laboratory since 1988. Lograsso’s research specialty is solidification physics, and he has applied his background to the synthesis and design of new novel materials in single crystalline forms. Tom is a co-inventor of a rare-earth free substitute (Galfenol) for a magnetostrictive alloy, Terfenol-D which contains the critical elements terbium and dysprosium. 

Lograsso received his B.S., M.S. and Ph.D. degrees in Metallurgical Engineering from Michigan Technological University.

Pete Chupas, Division Director, Materials Sciences and Engineering

Pete ChupasPete Chupas has been Division Director for Materials Sciences and Engineering (DMSE) since 2023.

As DMSE director, Kramer oversees budgets, proposal preparation, Materials Preparation Center administration, and the Sensitive Instrument Facility. DMSE includes 13 FWPs (BES funded), EFRC CATS, approximately 13 additional DOE funded projects, and a small number of Strategic Partnership Projects.

Chupas arrived at Ames Lab from Stony Brook University, where he was a research professor in the Department of Chemistry. He is also a member of GENESIS, a U.S. DOE Energy Frontier Research Center dedicated to developing a new paradigm for functional materials synthesis.

Emily Smith, Division Director, Chemical and Biological Sciences

Emily SmithEmily Smith is the Division Director for Chemical and Biological Sciences at Ames National Laboratory and a Professor of Chemistry at Iowa State University.

She is an optical spectroscopist focusing on measurements that are traditionally inaccessible to light-based measurements. Her research interests are spectroscopy instrument development for the analysis of nanoscale phenomena in separations materials, plant and animal tissue; and understanding the molecular events that lead to the organization of the cell membrane.

She received a Bachelor’s degree from Northwestern University and graduate degrees in chemistry from Pennsylvania State University (M.S.) and University of Wisconsin-Madison (Ph.D.). Her postdoctoral appointments were at University of Delaware and she was a Ruth L. Kirschstein National Research Service Award Postdoctoral Fellow at University of Arizona and the Arizona Cancer Center. She was a 2019-2021 American Association for the Advancement of Science, Science and Technology Policy Fellow working at the Department of Energy, Office of Science, Basic Energy Sciences.

Mark Bryden, Division Director, Simulation Modeling and Decision Science

Mark BrydenMark Bryden is the founding director of the Simulation, Modeling and Decision Science program at the Laboratory and is a professor of mechanical engineering at Iowa State University. Bryden’s research is focused on the federation of information from disparate sources (e.g., models, data, and other information elements) to create detailed models of engineered, human, and natural systems that enable engineering decision making for these complex systems.

Bryden has published more than 180 peer-reviewed articles and co-authored the textbook Combustion Engineering. He has founded two successful startups based on his research work, and he has founded the nonprofit ETHOS, a community of 150+ researchers focused on meeting the needs for clean village energy in the developing world. He has received three patents, three R&D 100 awards, two Regional Excellence in Technology Transfer awards, and a National Excellence in Technology Transfer award. In 2013 he and his coauthors received the ASME Melville Medal. 

Bryden received his BS, General Engineering, Idaho State University,  and his MS and PhD in Mechanical Engineering, University of Wisconsin-Madison.