Plasma spray coating processes
Plasma spray coating processes
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DOI：
10.1179/mst.1986.2.3.207
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发表时间：
1986-03
影响因子：
1.8
通讯作者：
B. Gill;R. Tucker
中科院分区：
文献类型：
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作者：
B. Gill;R. Tucker
等离子喷涂沉积是生产现代工业所需的高性能表面的最重要的技术之一。在过去的25年里，在对等离子体物理学的理解以及喷涂设备和技术的发展方面取得了重大进展。这使得包括金属、合金、陶瓷和金属陶瓷在内的一系列材料能够等离子喷涂到各种各样的基材类型和几何形状上。在此期间，燃气涡轮机发动机内独特的侵蚀性环境不仅为等离子喷涂技术提供了一些最大的挑战，而且也为其最成功的应用提供了一些挑战。本文讨论了等离子体和等离子喷涂装置的性质，并考虑了影响涂层质量的因素。等离子喷涂的实际方面被认为是最后的应用等离子喷涂工艺的高温燃气涡轮机组件的保护进行了讨论，作为例子涡轮机叶片覆盖涂层，热气体通道密封涂层，和陶瓷热障系统。MST/282
Plasma spray deposition is one of the most important technologies available for producing the high–performance surfaces required by modern industry. Over the past 25 years, there have been significant advances in the understanding of plasma physics and in the development of spraying equipment and techniques. This has enabled a range of materials including metals, alloys, ceramics, and cermets to be plasma sprayed on to a great variety of substrate types and geometries. During this period, the uniquely aggressive environment within the gas turbine engine has provided not only some of the greatest challenges to plasma spraying technology, but also some of its most successful applications. In this paper, the nature of plasma and plasma spray devices are discussed and factors affecting coating quality are considered. Practical aspects of plasma spraying are considered and finally the application of plasma spray coating processes to the protection of high–temperature gas turbine components is discussed using as examples turbine blade overlay coating, coatings for hot gas path seals, and ceramic thermal barrier systems. MST/282