陶瓷/金属扩散焊研究现状

Research status of ceramic/metal diffusion welding

陶瓷作为世界上使用最早的材料之一,具有较为优异的综合性能,在航空航天、工业生产等方面得到了广泛的使用。但是由于其加工性能较差、又硬又脆等特点,在实际的生产应用中往往会将其与金属连接起来形成复合结构,选择合适的连接技术就成为了决定陶瓷/金属性能强弱的关键。人类社会的进步也使得焊接陶瓷/金属的方法有了长足的进步,在众多的焊接方法中,扩散焊接被公认为是连接陶瓷与金属最好的方法之一,文中主要对陶瓷/金属扩散焊接的国内外研究现状进行了总结,并提出了陶瓷/金属进行扩散连接存在的问题以及部分改进的方法。

As one of the earliest used materials in the world,ceramics have excellent comprehensive properties and are widely used in aerospace,industrial production and so on.However,due to its poor processability,hard and brittleness,it is often connected with metal to form a composite structure in practical production and application.Choosing a suitable connection technology becomes the key to determine the good or poor performance of ceramics/metals.The progress of human society has also made great progress in the methods of welding ceramics/metals.Among many welding methods,diffusion welding is recognized as one of the best methods to connect ceramics and metals.This paper mainly summarizes the research status of diffusion welding of ceramics/metals at home and abroad,and puts forward the problems existing in diffusion welding of ceramics/metals and some improved methods.