Research Progress on Laser Additive Manufacturing and Solidification Defect Control of Ultra-High Temperature Oxide Ceramics
JIANG Hao1, SU Haijun1, 2, SHEN Zhonglin1, ZHAO Di1, LIU Yuan1, YU Minghui1, LIU Yimin1, ZHANG Zhuo1
1. School of Material Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China;
2. Shenzhen Research Institute of Northwestern Polytechnical University, Shenzhen 518057, China
Ultra-high temperature oxide ceramics have excellent strength and structural stability, as well as outstanding oxidation and corrosion resistance at elevated temperatures, which are expected to become new ultrahigh temperature structural materials for long-term service under extremely high temperature oxidation environments. Laser additive manufacturing (LAM) technology represented by selective laser melting (SLM) and laser engineered net shaping (LENS) has the unique advantages of high efficiency, flexible manufacturing, and engineered net shaping. In recent years, it has been gradually applied to the preparation of ultra-high temperature oxide ceramics and has become a research hotspot in the field. In this paper, the technical principles and characteristics have been overviewed for SLM and LENS. The research progress of solidification defect control during the LAM processes for ultra-high temperature oxide ceramics has been investigated in detail from four aspects: process optimization, high temperature preheating, ultrasonic assistance, and doping. Finally, the development trend and research focus have been prospected for ultra-high temperature oxide ceramics by LAM.
姜浩,苏海军,申仲琳,赵迪,刘园,余明辉,刘怡民,张卓. 超高温氧化物陶瓷激光增材制造及凝固缺陷控制研究进展[J]. 航空制造技术, 2023, 66(4): 61-71.
JIANG Hao, SU Haijun, SHEN Zhonglin, ZHAO Di, LIU Yuan, YU Minghui, LIU Yimin, ZHANG Zhuo. Research Progress on Laser Additive Manufacturing and Solidification Defect Control of Ultra-High Temperature Oxide Ceramics [J]. Aeronautical Manufacturing Technology, 2023, 66(4): 61-71.