Sensing, Control, and In Situ Measurement of Coating Properties: An Integrated Approach Toward Establishing Process-Property Correlations
Sensing, Control, and In Situ Measurement of Coating Properties: An Integrated Approach Toward Establishing Process-Property Correlations
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涂层性能的传感、控制和原位测量：建立工艺性能相关性的综合方法
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
T. Streibl
中科院分区：
文献类型：
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作者：
Sanjay Sampath;V. Srinivasan;A. Valarezo;A. Vaidya;T. Streibl
在过去的十年中，热喷涂过程中用于检测颗粒喷雾流的可用工具出现了爆炸式增长。这大大提高了我们对工艺再现性和可靠性的理解。尽管取得了这些进展，但与涂层性能的联系仍然是一个谜。这部分是由于构建过程的复杂性以及测量这些复杂涂层性能的相关问题。在本文中，我们确定了处理-结构-性质关系中的关键问题，特别是关于与粒子性质的联系。我们的目标是展示一种综合策略，一种结合粒子状态传感、过程映射和通过开发强大而先进的基于曲率的技术来原位提取涂层特性的策略。这些技术可以在沉积过程的几分钟内估计涂层模量，残余应力和热喷涂陶瓷涂层的非线性响应。最后，综合策略检查过程图的作用，以控制喷流，以及热喷涂涂料的裁剪特性。文中还讨论了氧化钇稳定氧化锆热障涂层的研究实例。
Over the last decade there has been an explosion in terms of available tools for sensing the particle spray stream in thermal spray processes. This has led to considerable enhancement in our understanding of process reproducibility and reliability. Despite these advances, the linkage to coating properties has continued to be an enigma. This is partially due to the complex nature of the build-up process and the associated issues with measuring properties of these complex coatings. In this paper, we identify critical issues in processing-structure-property relations particularly with respect to the linkage to particle properties. Our goal is to demonstrate an integrated strategy, one that combines particle state sensing, with process mapping and extracting coating properties in situ through the development of robust and advanced curvature-based techniques. These techniques allow estimation of coating modulus, residual stress and, non-linear response of thermal sprayed ceramic coatings all within minutes of the deposition process. Finally, the integrated strategy examines the role of process maps for control of the spray stream as well as tailoring properties of thermal spray coatings. Examples of such studies for yttria-stabilized zirconia thermal barrier coatings are discussed.