1. School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450001, China
2. National Center for International Joint Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
3. School of Mechanics & Engineering Science, Zhengzhou University, Zhengzhou 450001, China
4. Sirade Technologies,
Inc., Toronto L4E 0S7, Canada