Environmental Characterization of Monolithic Ceramics for Gas Turbine Applications
Environmental Characterization of Monolithic Ceramics for Gas Turbine Applications
复制标题
燃气轮机应用整体陶瓷的环境特性
DOI：
10.4028/www.scientific.net/kem.287.367
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Hua
中科院分区：
文献类型：
--
作者：
M. Ferber;Hua
在过去的30年里，俄罗斯、欧洲、日本和美国的许多项目都试图将单片陶瓷部件引入燃气轮机，以提高效率和减少排放。高性能氮化硅和碳化硅陶瓷通常是在这些应用中使用的主要候选材料。最近涉及氮化硅叶片和叶片的现场测试表明，由于失去了通常具有保护作用的二氧化硅保护层，这些材料可能会经历严重的衰退。本文首先总结了这些现场试验的主要发现，然后描述了一种在实验室环境中评估环境影响的相对简单的方法。
Over the last 30 years, a number of programs in Russia, Europe, Japan, and the United States have sought to introduce monolithic ceramic components into gas turbines with the goals of increasing efficiency and lowering emissions. High performance silicon nitride and silicon carbide ceramics typically have been leading candidates for use in these applications. Recent field tests involving silicon nitride vanes and blades have shown that these materials can experience significant recession due to the loss of the normally protective silica scale. This paper first summarizes key findings from these field tests and then describes a relatively simple method for evaluating environmental effects in a laboratory environment.