Profile:

Dr. Guiwu Liu is currently working as a professor at Jiangsu University. He received his Ph.D. degree from Xi′an Jiaotong University in 2008 and then visited the CNR-IENI (Institute for Energetics and Interphases, National Research Council, Italy) for one year. After that, he spent four years at Xi′an Jiaotong University as postdoc and associate professor before joining in Jiangsu University. His research interests focus on wetting, joining and compositing of metals and ceramics, and inorganic functional materials (such as gas-sensing, thermoelectric and light-absorbing materials) and devices.

Abstract：

High-temperature wetting and interfacial behavior is the scientific foundation of preparation of metal/ceramic composite materials or structures and brazed joint of ceramics. Ceramic brazing technology is widely used in machinery, electronics, petrochemical, energy, aerospace, national defense, military industries and so on. In this talk, firstly I will introduce the basic concepts related to wetting of material, the ceramic joining techniques and the main research methods and means of ceramic brazing, and then present three typical cases involving brazing of Al₂O₃ ceramic after surface metallization, active metal brazing of SiC ceramic and air reactive brazing of Si₃N₄ ceramic. Finally, the development trend of ceramic brazing research is briefly summarized.