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Bullard Research Group

Texas A&M University College of Engineering

People

Faculty

Jeffrey W Bullard

Professor
Zachry Department of Civil & Environmental Engineering
Department of Materials Science and Engineering

jwbullard@tamu.edu

979.458.6482

Jeff Bullard joined Texas A&M as a Professor in August 2019, holding joint appointments in the Zachry Department of Civil and Environmental Engineering and in the Department of Materials Science and Engineering.  Prior to that, Dr. Bullard was a Materials Research Engineer at the National Institute of Standards and Technology.  His research involves applying the principles of thermodynamics and kinetics to understand, predict, and ultimately control the evolution of microstructure and properties of materials.

Postdoctoral Associate

Florin Nita

f.nita@tamu.edu

Florin joined the group in February 2024 working on developing and validating computer models for CO2 absorption by concrete as a function of its composition and microstructural characteristics. He obtained a BS in Solid State Physics and his PhD in Physics from the Faculty of Physics of the University of Bucharest – Romania, in 1992 and 2003, respectively. Starting to work in 1992 in experimental physics at the Institute of Physical Chemistry in Bucharest, he accumulated practical experience in crystal growth, thin film deposition and the temperature programmed desorption (TPD) technique. In 2001 he started to work on MD and kMC modelling. From then until now he developed models for molecular beam epitaxy on Cu(001), Cu(110) and Si(001) vicinal surfaces, island electromigration on Si(001), free and supported metallic nanoclusters structure, metallic nanoclusters diffusion onto MgO(001), stability of vacancy-interstitial clusters in the bulk and their segregation at the grain boundaries in aluminum alloys, laser focused atom deposition, surface laser ablation, magnetron sputtering deposition and CO2 adsorption on NixMg1-xO solid solutions.

FNU SK Saddam Hossain

skshossain@tamu.edu

Prior to this appointment, Dr. Hossain was a postdoctoral researcher on ceramic additive manufacturing at Luleå University of Technology, Sweden and Korea Institute of Materials Science (KIMS), South Korea. He has PhD, Masters, and Bachelor degrees all in ceramic engineering and has worked with ceramic materials for more than eight years. His PhD studies focused on waste-derived ceramics, either for low-density materials or for high temperature applications. During his Masters, he synthesized magnetic-dielectric compounds by the sol-gel auto combustion method and analyzed their magnetic-dielectric properties. His main research expertise lies in ceramic processing, including the use of high-end characterization methods to analyze thermal transformations and microstructures so as to ultimately correlate performance with raw materials and processing.

PhD

Yoonjung Han

yjhan0712@tamu.edu

Yoonjung Han joined the group as a PhD student in January 2020. She received an M.S. degree from Seoul National University of Science and Technology, where her research centered on the properties of fiber-reinforced concrete and light-transmitting concrete.  Afterward, she worked in a research center for two years, where she investigated lightweight concrete in addition to continuing her investigations of fiber-reinforced concrete and light-transmitting concrete.As a member of this research group, she is focused primarily on computational modeling and experimental analysis of microstructure development and properties of concrete binders.

Theresa McEnroe

mcenroetheresa@exchange.tamu.edu

Theresa McEnroe joined the group in 2023 during her final year of her undergraduate degree at Texas A&M. She graduated with a bachelor’s degree in Materials Science and Engineering and is continuing in this field to pursue her PhD. She is currently researching the rheological properties of Ultra-High-Performance Concrete (UHPC) for applications to additive manufacturing. She is also working on the effects of synthetic and natural zeolites as an additive in cements. Terry has a strong interest in materials with extraterrestrial applications, has applied to NASA’s astronaut program, and hopes to pursue a career in space research.

Masters

Nai Keng (Joseph) Wang

naikeng0222@tamu.edu

Nai Keng Wang is from a Taiwanese family with two parents and one younger sister. He received his bachelor’s degree in Materials Science and Engineering at National Taipei University of Technology in 2020. Afterward, he worked at a technology company for approximately 2 years, where he conducted research on enhancing the thermal conductivity of copper and graphene composites. His PhD research is focused on sintering of ceramics and extraterrestrial materials in particular. Outside of research and school work, Nai Keng likes hiking, traveling, cycling, and learning English.

Former Group Members

Jonathan L Lapeyre

Postdoctoral Associate

jon.lapeyre@pnnl.gov

Dr. Jonathan Lapeyre was a postdoctoral researcher in the group from April 2021 through October 2023. He is currently a staff member at Pacific Northwest National Laboratory.

Jon’s Google Scholar Profile

Pavitra Murru

Postdoctoral Associate

pavitra.murru@gmail.com

Dr. Pavitra Murru was a postdoctoral associate from January 2020 until July 2021, and she worked on concrete composite modeling, especially the development of algorithms for achieving higher packing densities of concrete binders for ultra high performance concrete (UHPC) applications.  Pavitra received a PhD in Civil Engineering from Texas A&M University in 2019.

Natasha Van Dam

natasha.vandm@tamu.edu

Photo of Natasha Van DamNatasha Van Dam joined the group as an undergraduate research assistant in September 2022. She is currently working on characterizing the rheological properties of fresh Ultra-High Performance Concrete for additive manufacturing and assists in other projects. She is studying civil engineering at Texas A&M University and plans to graduate in May 2024. After graduation, her goals include continuing her civil engineering research and studies and pursuing a Ph.D. With an interest in mechanics and materials, she would like to dedicate her efforts to innovative approaches toward sustainability. In her free time, she enjoys reading classic literature, going on challenging hikes, and traveling.

Umme Zakira

Postdoctoral Associate

uz17@tamu.edu

Umme Zakira joined as a postdoctoral researcher in March 2022. She completed herMS in Civil Engineering at the University of Texas at Arlington in August 2017, where her research was focused on life cycle assessment and cost-benefit analysis of landfill mining. She started her PhD in Civil Engineering at Texas A&M University in 2018, successfully defending her dissertation in February 2022. She worked on the development of sustainable building materials during her doctoral study. Her research interests include synthesis of geopolymer, rheological characterization, additive manufacturing (3D printing), nanoindentation testing and nanomechanical characterization, dielectric properties, electro-kinetic study, and microstructural investigation of materials.

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