Chun has worked at ORNL since 1986. Previously, he was a research engineer at the University of California.
He is an associate editor of the publication Composites Part B: Engineering. Chun has authored or co-authored more than 160 technical publications and he is listed as a highly cited researcher in the materials science category by the Institute for Scientific Information.
He earned a bachelor's degree in physics from the National Taiwan University, a master's degree in materials science and engineering from National Tsing-Hua University in Taiwan and a doctorate in materials science and engineering from the University of California.
Chun and his wife, Xiao-Juan Hsueh, have two children - Michael and Kenny.
The family resides in West Knoxville.
ORNL is a multiprogram science and technology laboratory managed by UT-Battelle for the Department of Energy.