Figure 12From: Enhancing power output and profitability through energy-efficiency techniques and advanced materials in today’s industrial gas turbines A typical coating system in a high-pressure turbine blade. Clockwise, a TBC-coated high-pressure turbine blade, with view from the top showing the cooling systems, and schematic profile temperature; note the drop of temperature close to the blade surface due to the presence of a thin cooling air film (Boccaccini and Zhitomirsky 2002).Back to article page