Choo’s current research thrust areas include: synthesis of amorphous, nanocrystalline, and ultrafine-grained structural alloys; and development and application of neutron and synchrotron x-ray diffraction techniques for microstructure and deformation studies. Choo currently teaches a number of undergraduate and graduate courses including Introduction of Materials Science and Engineering (MSE201), Professional Development (MSE290), and Principles of Metallic Materials (MSE390). Choo has authored and co-authored more than 150 technical journal papers, and has contributed to about 300 technical presentations given by his research group members and collaborators including about 40 invited talks given by himself at national and international conferences.