Education

Honors and Awards

• Naval Research Laboratory (NRL), Summer Faculty Fellowship, 2020
• Air Force Research Laboratory (AFRL), Summer Faculty Fellowship, 2018
• College, Research Excellence Award, Florida State University , 2017
• University, Grant Assistant Program (GAP) Award, Florida State University, 2017
• Air Force Research Laboratory (AFRL), Summer Faculty Fellowship, 2016
• University, Grant Assistant Program (GAP) Award, Florida State University, 2016
• Institute of Electrical and Electronics Engineers (IEEE) Education Society, Teaching Award, 2015
• University, Research Incentive Award, University of Central Florida, 2013
• University, Teaching Incentive Award, University of Central Florida, 2012
• Office of Naval Research (ONR), Young Investigator Award, 2011
• Society of Mechanical Engineers (SME), Outstanding Young Manufacturing Engineer Award, 2011
• Oak Ridge Associated University Visiting Industrial Scholar Award, 2008

Publications

Dielectric properties of polymer-derived ceramic reinforced with boron nitride nanotubes

Jia, Y., Ajayi, T. D., & Xu, C. (2020), JOURNAL OF THE AMERICAN CERAMIC SOCIETY. https://doi.org/10.1111/jace.17301

Electrical Conductivity and Structural Evolution of Polymer Derived SiC Ceramics Pyrolyzed From 1200°C to 1800°C

Chowdhury, M. A., Wang, K., Jia, Y., & Xu, C. (2020), Journal of Micro and Nano-Manufacturing. https://doi.org/10.1115/1.4046191

Aligned carbon nanotube/carbon (CNT/C) composites with exceptionally high electrical conductivity at elevated temperature to 400 degrees C

Jia, Y., Yang, J., Wang, K., Chowdhury, M. A. R., Chen, B., Su, Y., … Xu, C. (2019), MATERIALS RESEARCH EXPRESS, 6(11). https://doi.org/10.1088/2053-1591/ab4385

Multifunctional Hybrid Composite for Thermal Protection of Carbon Fiber Reinforced Polymers (CFRPS) in Aerospace Applications

Ajayi, T., Kim, K., Liu, J., Nickerson, B., & Xu, C. (2019), SAMPE 2019 - Charlotte, NC. Presented at the SAMPE 2019 - Charlotte, NC. https://doi.org/10.33599/nasampe/s.19.1367

Wide-Band Tunable Microwave-Absorbing Ceramic Composites Made of Polymer-Derived SiOC Ceramic and in Situ Partially Surface-Oxidized Ultra-High-Temperature Ceramics

Jia, Y., Chowdhury, M. A. R., Zhang, D., & Xu, C. (2019), ACS APPLIED MATERIALS & INTERFACES, 11(49), 45862–45874. https://doi.org/10.1021/acsami.9b16475

A hybrid ceramic-polymer composite fabricated by co-curing lay-up process for a strong bonding and enhanced transient thermal protection

Ju, L., Yang, J., Hao, A., Daniel, J., Morales, J., Nguyen, S., … Xu, C. (2018), Ceramics International, 44(10), 11497–11504. https://doi.org/10.1016/j.ceramint.2018.03.211

Wireless Temperature Sensor for High Temperature Environments (up to 1000C) using RF Techniques with 0.5 meter Sensing Distance

Xu, C., & Daniel, J. (2018). , . Presented at the 41th Annual Conference on Composites, Materials, and Structures, Cocoa beach, FL.

Effect of Processing Conditions on Electric and Dielectric Properties of Polymer-Derived SiC Ceramics

Xu, C., & Wang, K. (2017). , . Pittsburgh, PA: Materials Science & Technology.

Enhanced cyclic oxidation resistance through the self-healing of segmented cracks using nano-Al2O3/Ni-20 wt%Al particles in laser re-melted thermal barrier coatings

Fan, Z., Wang, K., Dong, X., Wang, R., Duan, W., Mei, X., … Xu, C. (2017), Materials Letters, 201, 156–160. https://doi.org/10.1016/j.matlet.2017.04.116

Metamaterial Enabling RF Transparency – Ceramic Composite Design for High Temperature Application

Macdonald, J., & Xu, C. (2017). , . Presented at the National Space and Missile Materials Symposium, CA.

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Grants

Accelerating Delivery of a Secure Hypersonic Sensor Network

Air Force Research Laboratory (AFRL)(4/09/20 - 6/06/20)

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Accelerating Delivery of a Secure Hypersonic Sensor Network

Sponsor: Air Force Research Laboratory (AFRL)

Start Date: 4/09/20

End Date: 6/06/20

Abstract

To validate product-customer fit and develop a detailed system development and demonstration plan with AFRL for a secure hypersonic sensor network.

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MRI: Acquisition of a Large High-Temperature Vacuum Press for Advanced Materials Research, Manufacturing and Training at NC State University

National Science Foundation (NSF)(8/01/20 - 7/31/23)

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MRI: Acquisition of a Large High-Temperature Vacuum Press for Advanced Materials Research, Manufacturing and Training at NC State University

Sponsor: National Science Foundation (NSF)

Start Date: 8/01/20

End Date: 7/31/23

Abstract

It is proposed to acquire and install a Diffusion Bonding Hot Press Furnace for processing advanced materials such as ceramics, composites, refractory metals and composite metal foams for research and training on various topics of materials processing, evaluation and treatment. The system will be used to perform processing of panels of various sizes up to 1ft x 1ft. Currently the only system similar to this unit in the entire area is an old (over 50 years old) hot press with a very small chamber size and malfunctioning hydraulic press that is in PI’s lab. Due to the lack of capacity of this machine, the PIs are unable to process large parts or advanced materials that require higher temperature or pressure for manufacturing (such as ceramics and refractory metals). This press can be a valuable tool not only to support all PIs’ research, but also to support all users of NCSU on-campus Center for Additive Manufacturing and Logistics (CAMAL) and other universities in the area such as Duke university. CAMAL center currently houses five metal additive manufacturing machines that are used for a variety of research projects. However, it is lacking such large chamber press with high temperature capabilities for processing and post processing treatments of advanced ceramics, metallic and composite materials. Since the unit will housed in a shared facility, it will be easy for access both as an educational tool and a research tool for users not only at the college of engineering, but also all other colleges across the campus as well as outside users from both academia and industry. The advantages of this system over all other units are the distinctly larger chamber along with higher service temperatures and clean, efficient, and fast heating and cooling rate with a simultaneous heating and pressing. Additionally, it may be used in vacuum and in partial pressure inert gas atmosphere. Moreover, proper operation of the furnace may be mastered in a few hours which is necessary for such equipment that is going to be used by various users and students both as an educational and a research tool.

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A Hybrid Multi-functional Composite Material by Co-curing Lay-up Process for Enhanced Thermal/Chemical Stability and Surface Durability

US Navy-Office Of Naval Research(11/01/18 - 8/31/21)

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A Hybrid Multi-functional Composite Material by Co-curing Lay-up Process for Enhanced Thermal/Chemical Stability and Surface Durability

Sponsor: US Navy-Office Of Naval Research

Start Date: 11/01/18

End Date: 8/31/21

Abstract

This proposal is to develop a hybrid, multifunctional composite material that is an improvement upon the thermal and chemical stability, and surface durability of traditional polymer composites. Such hybrid multifunctional composite materials can be applied in higher temperature and harsher environment than current typical polymer based composites, and can be utilized especially in naval and marine parts for enhanced strength and durability (salty and high moisture environment). By using a standard co-curing lay-up process, in which a flexible conductive ceramic thin laye is bonded directly onto the outmost layer of polymer composites to ensure the material integrity, a new, effective and useful composite will be manufactured following the same procedure as standard carbon fiber reinforced polymer (CFRP) composites.

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Manufacturing Hybrid Multi-functional Composite Skin Materials via Standard Prepreg Lay-up Process

US Navy-Office Of Naval Research(7/01/18 - 12/04/18)

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Manufacturing Hybrid Multi-functional Composite Skin Materials via Standard Prepreg Lay-up Process

Sponsor: US Navy-Office Of Naval Research

Start Date: 7/01/18

End Date: 12/04/18

Abstract

The objective of this project is to develop a hybrid, multifunctional composite material that improves the thermal and chemical stability, and surface durability of traditional carbon fiber reinforced polymer (CFRP) composites. By using a standard prepreg lay-up process, in which a flexible conductive ceramic thin layer is bonded directly onto the outmost layer of polymer composites to ensure the material integrity, a hybrid composite will be manufactured following the same procedure as standard CFRP composites without increasing extra manufacturing cost. The produced hybrid composites can be used in harsher environment, (e.g., high temperature, moisture under load, ultraviolet radiation, corrosive chemicals). The manufacturing procedure is readily scalable.

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