自蔓延反应喷涂表面涂层技术进展

围绕自蔓延反应喷涂技术与工艺研究和自蔓延反应喷涂相关理论研究两个方面,介绍了这一技术领域的发展状况。SHS反应喷涂技术将燃烧合成与传统热喷涂相融合,将各类高化学能的反应型粉材、线材引入喷涂技术中制备高性能陶瓷和金属间化合物涂层,发展了SHS反应药芯线材电弧喷涂、SHS等离子喷涂、爆炸反应喷涂以及SHS反应火焰喷涂等技术手段。一方面,对其中的配系设计、控制参数、涂层性能和相关设备等方面开展了深入的实验研究;另一方面,围绕涂层形成过程、喷涂条件下的反应机理与模式,以及反应喷涂过程中的能量状态和粒子的物理状态等方面开展了初步的理论研究,正在构筑较完整的理论体系。

Development of SHS Reactive Spray Technology

The progress and situation of SHS reactive spray are discussed mainly around the two branches of technology and basic theory.SHS reactive spray which was the combination of the self-propagating high temperature synthesis (SHS for short) and the traditional thermal spray has been developed rapidly in the last decade including SHS reactive core wire arc spray,SHS plasma spray, reactive explosive spray and SHS flame spray.They are used to produce ceramic or inter-metallic coating utilizing traditional methods but spraying high energetic reactive wires or powders.At present,they are widely studied about series of reactive reactants,controlling parameters,coatings'properties and spraying equipment.Meanwhile,the completely theoretic frame is constructing through researches on procedure to form coating, reactive mode and mechanism in spraying, energetic distribution and physical state of particles.