热喷涂过程中熔滴在与基材撞击后的扁平及固化行为是形成涂层过程中的一个基本现象,因此,关于单个粒子扁平化行为的研究不可或缺.从等离子喷涂过程中基材预热温度、喷涂压强环境、材料润湿能力、基材的表面粗糙度、固化能力、脱附吸附能力等因素对粒子扁平化转变的影响,以及研究过程中自由下落试验和数值模拟方法的应用,概述了关于粒子扁平现象的研究现状.指出了未来关于粒子扁平化研究的发展趋势在于结合数值模拟和喷涂试验,以期找出粒子扁平化的控制因素.并解释了基材在较高的预热温度和低压条件下,盘状沉积为何更容易出现.
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