2018
42. Varma, A., Absar, S., Zhao, X., Choi, H., Abke, T., Skovron, J.D., Ruszkiewicz, B.J., and Mears, L., “Thermal-Mechanical Numerical Modeling of the Friction Element Welding Process,” Proceedings of ASME 2018 13th International Manufacturing Science and Engineering Conference, College Station, TX (June 2018).
2017
41. Skovron, J.D., Ruszkiewicz, B.J., Mears, L., Abke, T., Varma, A., Li, Y., Choi, H., and Zhao, X., “Investigation of the Cleaning and Welding Steps From the Friction Element Welding Process,” Proceedings of ASME 2017 12th International Manufacturing Science and Engineering Conference, Los Angeles, CA (June 2017).
2014
40. Choi, H., Malomo, B., and Li, X., “Hybrid Production of Master Nanocomposites for Bulk Metal Matrix Nanocomposites,” Proceedings of NAMRC 2014, Detroit, MI (June 2014).
39. Xu, J., Estruga, M., Chen, L., Choi, H., and Li, X., “Bulk Al Matrix Nanocomposites Formed through In situ Oxidation and Melting of Aluminum Nanoparticles,” Proceedings of NAMRC 2014, Detroit, MI (June 2014).
38. Chen, L., Peng, J., Xu, J., Choi, H., and Li, X., “Achieving Uniform Distribution and Dispersion of a High Percentage Nanoparticles in Mg18Sn Matrix by Solidification Processing,” Proceedings of TMS 2014, San Diego, CA (February 2014).
2013
37. Choi, H., Cho, W., Hoefert, D., Weiss, D., and Li, X., “Scale-up Ultrasonic Processing System for Batch Production of Metallic Nanocomposites,” Proceedings of the 117th AFS Metalcasting Congress, St. Louis, MO (April 2013).
36. Choi, H., Cho, W., and Li, X., “Semi-Solid Mixing for Fabrication of A206/Al2O3 Master Nanocomposites,” Proceedings of the 117th AFS Metalcasting Congress, St. Louis, MO (April 2013).
35. Sun, Y., Choi, H., and Li, X., “Composition Optimization for A206/Al2O3 Nanocomposite,” Proceedings of the 117th AFS Metalcasting Congress, St. Louis, MO (April 2013).
34. Chen, L., Konishi, H., Xu, J., Choi, H., Li, Z., and Li, X., “Nanoparticle-Controlled Solidification of Hypermonotectic Alloys,” Proceedings of TMS 2013, San Antonio, TX (March 2013).
33. Xu, J., Chen, L., Choi, H., Konishi, H., and Li, X., “Metallic Nanocomposite Powders through Nanoparticle Assembly with Aluminum in Immiscible Liquid,” Proceedings of TMS 2013, San Antonio, TX (March 2013).
32. Sun, Y., Choi, H., Konishi, H., and Li, X., “Microstructure Modification by Nanoparticles during Solidification of Aluminum Alloys,” Proceedings of TMS 2013, San Antonio, TX (March 2013).
2012
31. Chen, L., Choi, H., Fehrenbacher, A., Xu, J., Ma, C., and Li, X., “Uniform dispersion of nanoparticles in metal matrix nanocomposites,” Proceedings of TMS 2012, Orlando, FL (March 2012).
30. Sun, Y., Choi, H., Konishi H., Pikhovich, V., Hathaway, R., and Li, X., “Effect of core-shelled nanoparticles of carbon-coated nickel on magnesium,” Proceedings of TMS 2012, Orlando, FL (March 2012).
2011
29. Choi, H., Sun, Y., Slater, B., and Li, X., “Cast AZ91D/TiB2 Nanocomposites with a Nanoparticle-Feeding System,” Proceedings of MS&T 2011 Conference & Exhibition, Columbus, OH (October 2011).
28. Choi, H., Konishi, H., and Li, X., “Effects of Silicon Carbide Nanoparticles on Mechanical Properties and Microstructure of As-Cast Mg-12wt.%Al-0.2wt.%Mn Nanocomposites,” Proceedings of TMS 2011, San Diego, CA (March 2011).
27. Nimityongskul, S., Alba-Baena, N., Choi, H., Jones, M., Wood, T., Sahoo, M., Lakes, R., Kou, S., and Li, X., “Characterization of Hot Extruded Mg/SiC Nanocomposites Fabricated by Casting,” Proceedings of TMS 2011, San Diego, CA (March 2011).
26. Choi, H., and Li, X., “Preparation and Characterization of Cast Hypereutectic Al-20wt.%Si-4.5wt.%Cu Nanocomposites with Al2O3 Nanoparticles,” Proceedings of TMS 2011, San Diego, CA (March 2011).
2010
25. Choi, H., Jones, M., Konishi, H., and Li, X., “Effects of Aluminum Oxide Nanoparticles on the Mechanical Properties and Microstructure of As-Cast and Heat Treated Al-7Si-0.3Mg-0.5Cu,” Proceedings of MS&T 2010 Conference & Exhibition, Houston, TX (October 2010).
24. Choi, H., Konishi, H., and Li, X., “Microstructure and Mechanical Properties of Cast Hypereutectic Al-Si Alloy Nanocomposites,” Proceedings of MS&T 2010 Conference & Exhibition, Houston, TX (October 2010).
2008
23. Li, X., Zhang, X., Dirk, W., Choi, H., and Cheng, X., “Embedded Micro/Nano Sensors for Harsh Engineering Environments,” Proceedings of IEEE Sensors, Lecce, Italy (October 2008).
22. Cao, G., Choi, H., Oportus, J., Konishi, H., and Li, X., “Mg-6Zn/1.5%SiC Nanocomposites Fabricated by Ultrasonic Cavitation Based Solidification Processing,” Proceedings of TMS 2008 Annual Meeting & Exhibition, New Orleans, LA (March 2008).
2007
21. Choi, H., and Li, X., “Experimental Investigations of Laser Micromachining of Metal using Micro Thin Film Thermocouples,” Proceedings of the International Conference on Manufacturing Science and Engineering, Atlanta, GA (October 2007).
20. Cheng, X., Choi, H., and Li, X., “Applications of Micro Sensors for Fundamental Study of Manufacturing Processes,” Proceedings of the International Conference on Manufacturing Science and Engineering, Atlanta, GA (October 2007).
2006
19. Cheng, X., Datta, A., Choi, H., and Li, X., “Metal Embedded Micro Sensors for Manufacturing Applications,” Proceedings of IEEE Sensors, Daegu, Korea (October 2006).
18. Choi, H., and Li, X., “Transient Surface Temperature Measurement with Micro Sensors for Nanosecond Pulsed Laser Micromachining of Nickel,” Proceedings of the International Conference on Manufacturing Science and Engineering, Ypsilanti, MI (October 2006).
17. Qu, Y., Choi, H., Perry, T., Jeon, Y., Pfefferkorn, F., Li, X., Duffie, N., “Numerical and Experimental Investigation of Micromelting for Laser Micro Polishing of Meso/Micro Metallic Components,” Proceedings of the International Conference on Manufacturing Science and Engineering, Ypsilanti, MI (October 2006).
16. Cheng, X., Datta, A., Choi, H., and Li, X., “Micro Thin Film Sensor Embedding and Integration for Rapid Manufacturing of “Smart” Metal Tooling,” 2006 International Symposium of Flexible Automation, Osaka, Japan (July 2006).
15. Cheng, X., Datta, A., Choi, H., and Li, X., “Design, Fabrication, and Application of Micro Sensors Embedded in Metal Tooling/Structures,” The 7th International Conference on Frontiers of Design and Manufacturing, Guangzhou, China (June 2006).
2005
14. Choi, H., and Li, X., “Transient Temperature Measurement in Nanosecond Pulsed Laser Micro Drilling by Using Micro Thin Film Thermocouples,” ASME International Mechanical Engineering Congress and Exposition, Orlando, FL (November 2005).
13. Datta, A., Choi, H., and Li, X., “A Novel Batch Production Technique of Metal Embedded Thin Film Micro Sensors for Applications in Hostile Environments,” ASME International Mechanical Engineering Congress and Exposition, Orlando, FL (November 2005).
12. Kobliska, J., Ostojic, P., Cheng, X., Zhang, X., Choi, H., Yang, Y., and Li, X., “Rapid Fabrication of Smart Tooling with Embedded Sensors by Casting in Molds Made by Three Dimensional Printing,” 16th Solid Freeform Fabrication Proceedings, Austin, TX (August 2005).
2004
11. Choi, H., Datta, A., and Li, X., “Micro Thin Film Temperature Sensors Embedded in Metal Structures,” ASME International Mechanical Engineering Congress, Anaheim, CA (November 2004).
10. Datta, A., Choi, H., and Li, X., “Studies on Thin Films Constituting Micro Thermomechanical Sensors to be Embedded in Metal Structures,” ASME International Mechanical Engineering Congress, Anaheim, CA (November 2004).
9. Cheng, X., Schwieso, P., Choi, H., Datta, A., and Li, X., “Micro Thin Film sensor Embedding in Metals by Ultrasonic Welding for Production of Miniature Smart Tooling,” ASME International Mechanical Engineering Congress, Anaheim, CA (November 2004).
8. Choi, H. and Li, X., “Study of Transient Thermo-mechanical Phenomena in Micro-scale Laser Materials Processing with Embedded Micro Thin Film Sensors,” Micro- and Nanoscale Laser Materials Processing Symposium, 41st Annual SES Technical Meeting, Lincoln, NE (October 2004).
7. Cheng, X., Choi, H., Schwieso P., Datta A., and Li, X., “Micro Thin Film Sensor Embedding in Metal Structures for Rapid Production of Miniature Smart Metal Tooling,” 15th Solid Freeform Fabrication Proceedings, University of Texas at Austin, Austin, TX (August 2004).
2003
6. Hadipoespito, G. W., Yang, Y., Choi, H., and Li, X., “Digital Micromirror Device Based Microstereolithography for Micro Structures of Transparent Photopolymer and Nanocomposites,” 14th Solid Freeform Fabrication Proceedings, University of Texas at Austin, Austin, TX (August 2003).
5. Choi, H. and Li, X., “UV Laser Machining of Biomaterial Composites,” 20th International Congress on Applications of Lasers and Electro-Optics, Jacksonville, FL (October 2003).
4. Li, X., Choi, H., and Yang, Y., “Laser-based Mesoscale Layered Manufacturing,” NSF Design, Service, and Manufacturing Grantee and Research Conferences, Birmingham, AL (January 2003).
2002
3. Choi, H., Yang, Y., and Li, X., “Laser-based Micro-manufacturing of Complex Microstructures,” 21st International Congress on Applications of Lasers and Electro-Optics, Scottsdale, AZ (October 2002).
2. Li, X., Choi, H., and Yang, Y., “Laser-based Meso/Micro Rapid Manufacturing System,” 13th Solid Freeform Fabrication Proceedings, University of Texas, Austin, Texas, Austin, TX (August 2002).
1. Li, X. and Choi, H., “Micro Rapid Prototyping of 3D Heterogeneous MEMS,” International Conference on Metallurgical Coatings and Thin Films, San Diego, CA (April 2002).