标题： 氮化钛的反应性氮等离子体喷涂涂层：等离子体炬设计与涂层分析 显示英文标题

标题： Reactive nitrogen plasma spray coating of titanium nitride: plasma torch design and coating analysis

摘要： 在本文中，设计和开发了一种热直流等离子体炬，用于等离子喷涂氮化钛层。热等离子喷涂炬是一种非转移炬，能够产生高能量和高温的等离子体弧 jet。钛粉末被注入与氮等离子体相互作用的等离子体 jet 中，导致形成一层厚而硬的氮化钛。通过拉曼光谱分析由该方法制备的涂层样品，确认了氮化钛的生成。为了研究该层的厚度，使用了光学显微镜。结果发现，所得层比其他沉积方法合成的层更厚，并且主要由纯氮化钛组成。 显示英文摘要

摘要： In this paper, a thermal DC plasma torch was designed and developed for plasma spraying of a titanium nitride layer. Thermal plasma spray torch is a kind of non-transferred torch which can produce a high energy and high temperature plasma arc jet. Ti powders were injected into the plasma jet interacted with nitrogen plasma, resulted in a thick and hard layer of titanium nitride. Coating sample produced by this method was analysed with Raman spectroscopy confirming titanium nitride production. To study the thickness of the layer optical microscopy was used. It was found that the resulted layer is thicker than the layer synthesized by other deposition methods and it mainly consists of pure titanium nitride.