The author, Yongchao Zhu, is an associate professor of Engineering Mechanics at Zhengzhou Railway Vocational and Technical College, where he has been working since 2010. He received a B.S. degree in Materials Science from HeFei University of Technology in 2005, an M.S. degree in Materials Science from Tongji University in 2009, and a Ph.D. degree in Engineering Mechanics from Zhengzhou University in 2019. His interests include preparation, mechanical properties, and molecular simulations of metal matrix composites, as applied to powder metallurgy or the film coating industry. His work has been published in a number of journals.