Nanostructured Materials Production by Hypersonic Plasma Particle Deposition

摘要9520147 S.L. Girshick，U.明尼苏达 研究了一种利用超音速等离子体粒子沉积制备纳米结构涂层或块体材料的新方法。 研究的目的是开发一种等离子体膨胀工艺，用于高速合成具有最小飞行团聚的硬质非氧化物陶瓷纳米颗粒，研究用于粉末收集和原位压实的高超音速冲击工艺，并表征颗粒和相应的沉积物。 将建立粒子成核和生长、飞行中凝聚和高超音速沉积的模型，然后应用于实验室的实验条件。 该项目在技术上与制造纳米颗粒和先进陶瓷涂层有关。 ***

Abstract 9520147 S.L. Girshick, U. of Minnesota A new method for creating nanostructured coatings or bulk materials by using a hypersonic plasma particle deposition will be investigated. The objectives of the research are to develop a plasma expansion process for high-rate synthesis of nanoparticles of hard non-oxide ceramics with minimum in-flight agglomeration, investigate the hypersonic impaction process for powder collection and in-situ compaction, and characterize the particles and corresponding deposits. Models will be developed for particle nucleation and growth, in-flight agglomeration and hypersonic deposition, and then applied to the experimental conditions in the laboratory. The project is technologically relevant to manufacturing nanoparticles and advanced ceramics coatings. ***