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SU professor, grad assistant co-authors of research paper

12/13/2012

Southern University Professor Shizhong Yang and graduate assistant Jialin Lei were contributors to a scientific paper published December 13 edition of Science Magazine. The paper, “The Texture of Nanocrystalline Nickel: Probing the Lower Size Limit of Dislocation Activity.”

The paper delves into the noncrystals as protect coatings for advanced gas turbine and jet engines and their resistance to stress. However, the paper points out, contrary to computer simulations, the tiny size of noncrystals apparently does not safeguard them from defects.

To read more about the findings of the group, go to http://newscenter.lbl.gov/news-releases/2012/12/13/nanocrystals-not-small-enough-to-avoid-defects/

Dr. Yang, an assistant professor/Computational Scientist and grad assistant Jialin, participated in the paper with eight other researchers from around the country through the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and its Advanced Light Source, a premier source of X-rays and ultraviolent light for scientific research.

The experimental findings show that dislocation can form in the finest of nanocrystals when stress is applied.

Dr. Yang received his Ph.D. from the University of Missouri-Kansas City in Computational Surface Physics with a co-discipline in Electrical Computer Engineering.

The lead and corresponding author of the paper is Dr. Ben Chin, a materials scientist with the Lawrence Berkeley National Lab.

Science Magazine is published weekly by the Washington, D.C.-based American Association for the Advancement of Science.