headshot of Xiayun Zhao

Xiayun Zhao

Assistant Professor
xiayun.zhao@pitt.edu
(412) 648-4320
ZIP-AM Lab Website Mechanical Engineering & Materials Science

overview

Dr. Zhao joined the University of Pittsburgh (Pitt) as an assistant professor in August 2018. She received a B.S. from the Department of Precision Instruments in Tsinghua University. Before pursuing her Ph.D. at Georgia Tech, she worked full time as an instrumentation and control system engineer in Houston. At Pitt, Dr. Zhao's Research Laboratory of ZIP-AM (ZXY Intelligent Precision - Advanced Manufacturing) aims to improve and innovate various manufacturing processes and systems, as well as to demonstrate novel applications of advanced manufacturing technologies.

For more details (including current openings), welcome to visit Dr. Zhao's research lab website (https://www.zipam.pitt.edu/).

about

PhD, Mechanical Engineering, Georgia Institute of Technology, 2014 - 2017

MS, Mechanical Engineering, Georgia Institute of Technology, 2008 - 2009

BS, Precision Engineering - Measurement Science and Control Technology, Tsinghua University, 2002 - 2006

Kolibaba, T.J., Killgore, J.P., Caplins, B.W., Higgins, C.I., Arp, U., Miller, C.C., Poster, D.L., Zong, Y., Broce, S., Wang, T., Talacka, V., Andersson, J., Davenport, A., Panzer, M.A., Tumbleston, J.R., Gonzalez, J.M., Huffstetler, J., Lund, B.R., Billerbeck, K., Clay, A.M., Fratarcangeli, M.R., Qi, H.J., Porcincula, D.H., Bezek, L.B., Kikuta, K., Pearlson, M.N., Walker, D.A., Long, C.J., Hasa, E., Aguirre-Soto, A., Celis-Guzman, A., Backman, D.E., Sridhar, R.L., Cavicchi, K.A., Viereckl, R., Tong, E., Hansen, C.J., Shah, D.M., Kinane, C., Pena-Francesch, A., Antonini, C., Chaudhary, R., Muraca, G., Bensouda, Y., Zhang, Y., & Zhao, X. (2024). Results of an interlaboratory study on the working curve in vat photopolymerization. ADDITIVE MANUFACTURING, 84, 104082.Elsevier. doi: 10.1016/j.addma.2024.104082.

Zhang, H., Zhang, Y., & Zhao, X. (2024). Vat photopolymerization additive manufacturing process modeling: a thermal-chemical coupling approach informed by in-situ and ex-situ characterization data. ADDITIVE MANUFACTURING LETTERS, 9, 100193.Elsevier. doi: 10.1016/j.addlet.2024.100193.

Zhang, Y., Zhang, H., & Zhao, X. (2024). Exploring three-dimensional photoinhibition to enhance vat photopolymerization: A preliminary study. PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY, 90, 176-190.Elsevier. doi: 10.1016/j.precisioneng.2024.08.009.

Vallabh, C.K.P., Zhang, H., Anderson, D.S., To, A.C., & Zhao, X. (2023). Melt Pool Width Measurement in a Multi-Track, Multi-Layer Laser Powder Bed Fusion Print Using Single-Camera Two-Wavelength Imaging Pyrometry. Research Square Platform. doi: 10.21203/rs.3.rs-3672769/v1.

Zhang, H., Vallabh, C.K.P., & Zhao, X. (2023). Influence of Spattering on In-process Layer Surface Roughness during Laser Powder Bed Fusion.

Vallabh, C.K.P., & Zhao, X. (2022). Melt pool temperature measurement and monitoring during laser powder bed fusion based additive manufacturing via single-camera two-wavelength imaging pyrometry (STWIP). Journal of Manufacturing Processes, 79, 486-500.Elsevier. doi: 10.1016/j.jmapro.2022.04.058.

Vallabh, C.K.P., Xiong, Y., & Zhao, X. (2021). 3D printing of liquid metal EGaIn through laser induced forward transfer: A proof-of-concept study. MANUFACTURING LETTERS, 28, 42-45.Elsevier. doi: 10.1016/j.mfglet.2021.03.004.

Zhao, X., To, A., & Neu, R. (2019). An Effective Quality Assurance Method for Additively Manufactured Gas Turbine Metallic Components via Machine Learning from In-Situ Monitoring, Part-scale Modeling, and Ex-Situ Characterization Data. Office of Scientific and Technical Information (OSTI). doi: 10.2172/2335479.

Zhao, X., & Rosen, D.W. (2018). An implementation of real-time feedback control of cured part height in Exposure Controlled Projection Lithography with in-situ interferometric measurement feedback. ADDITIVE MANUFACTURING, 23, 253-263.Elsevier. doi: 10.1016/j.addma.2018.07.016.

Zhao, X., & Rosen, D.W. (2017). Experimental validation and characterization of a real-time metrology system for photopolymerization-based stereolithographic additive manufacturing process. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 91(1-4), 1255-1273.Springer Nature. doi: 10.1007/s00170-016-9844-1.

Zhao, X., & Rosen, D.W. (2017). A data mining approach in real-time measurement for polymer additive manufacturing process with exposure controlled projection lithography. JOURNAL OF MANUFACTURING SYSTEMS, 43, 271-286.Elsevier. doi: 10.1016/j.jmsy.2017.01.005.

Zhao, X., & Rosen, D.W. (2017). Real-time interferometric monitoring and measuring of photopolymerization based stereolithographic additive manufacturing process: sensor model and algorithm. Measurement Science and Technology, 28(1), 015001.IOP Publishing. doi: 10.1088/0957-0233/28/1/015001.

Zhao, X., & Rosen, D.W. (2016). Simulation study on evolutionary cycle to cycle time control of exposure controlled projection lithography. Rapid Prototyping Journal, 22(3), 456-464.Emerald. doi: 10.1108/rpj-01-2015-0008.

Zhao, X. (2018). Interferometry sensing data mining for real-time geometric profile measurement in photopolymer based additive manufacturing. International Solid Freeform Fabrication Symposium – an Additive Manufacturing Conference.Austin, TX.

Zhao, X. (2018). Measurements & Sensing Systems: Optical Sensing Technologies. Nanyang Technological University.Singapore.

Zhao, X. (2018). Digital Additive Manufacturing — one paradigm of a holistic approach to advance manufacturing. Nanyang Technological University.Singapore.

Zhao, X. (2018). Towards Digitalized Additive Manufacturing - A Smart Photopolymer based Additive Manufacturing System enabled by Real-time Measurement & Control and assisted by Machine Learning. National University of Singapore.Singapore.

Zhao, X. (2018). An Intelligent Photopolymer Additive Manufacturing System. University of Delaware.Newark, Delaware.

Zhao, X. (2017). Real-time metrology for photopolymer additive manufacturing with exposure controlled projection lithography. ACS (American Chemical Society) National Meeting & Exposition.San Francisco, CA.

Zhao, X. (2017). Engineering Education with and for Digital Additive Manufacturing. Illinois Institute of Technology.Chicago, IL.

Zhao, X. (2017). To advance additive manufacturing - one facilitating pillar: process measurement and control. University of Massachusetts Amherst.

Zhao, X. (2017). To advance manufacturing — one pivotal thruster: precision additive manufacturing. University at Buffalo.Buffalo, NY.

Zhao, X. (2017). A sophisticated approach to improve additive manufacturing process accuracy: real-time measurement and control. University of Michigan - Shanghai Jiao Tong University Joint Institute.Shanghai, China.

Zhao, X., & David, R. (2017). Real-Time Process Measurement and Feedback Control for Exposure Controlled Projection Lithography. International Solid Freeform Fabrication Symposium – an Additive Manufacturing Conference, Austin.

Zhao, X., David, R., Wang, J., Zhao, C., & Jariwala, A. (2016). Experimental Implementation and Investigation of Real-Time Metrology for Exposure Controlled Projection Lithography. International Solid Freeform Fabrication Symposium.Austin, TX.

Zhao, X., & David, R. (2015). Parameter Estimation Based Real-Time Metrology for Exposure Controlled Projection Lithography. International Solid Freeform Fabrication Symposium – an Additive Manufacturing Conference.Austin, TX.

Zhao, X., & Rosen, D.W. (2015). Process Modeling and Advanced Control Methods for Exposure Controlled Projection Lithography**Resrach supported by National Science Foundation. 2015 American Control Conference (ACC).Chicago, IL. doi: 10.1109/acc.2015.7171896.

Zhao, X., & Rosen, D. (2014). Investigation of Advanced Process Control Methods for Exposure Controlled Projection Lithography. International Solid Freeform Fabrication Symposium.Austin, TX.

Zhao, X., David, R., Ding, F., & Jariwala, A. (2009). A Process Planning Method for Thin Film Mask Projection Micro-Stereolithography. ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference.San Diego, CA.