Overview on advanced thermal barrier coatings
نویسندگان
چکیده
منابع مشابه
Advanced Thermal Barrier Coatings for Industrial Gas Turbine Engines
Executive Summary 3 Thermal barrier coating (TBC) ceramic topcoats made from Y 2 O 3-stabilized ZrO 2 (YSZ) have been used successfully in gas-turbine engine applications for more than 30 years. YSZ derives its favorable performance from a combination of properties that include low thermal conductivity, high thermal expansion coefficient, and phase stability to relatively high temperatures. Wit...
متن کاملAdvanced Thermal Barrier Coating Development and Testing Advanced Ceramic Coatings and Interfaces
Thermal barrier coatings (TBCs) deposited by Electron-beam physical deposition (EBPVD) protect the turbine blades situated at the high pressure sector of the aircraft and stationary turbines. It is an important task to uphold low thermal conductivity in TBCs during long-term service at elevated temperatures. One of the most promising methods to hlfil this task is to optimize the properties of P...
متن کاملThermal Barrier Ceramic Coatings — A Review
Thermal barrier coatings (TBCs) provide effective thermal barrier to the components of gas turbine engines by allowing higher operating temperatures and reduced cool‐ ing requirements. Plasma spraying, electron-beam physical vapor deposition, and sol‐ ution precursor plasma spray techniques are generally used to apply the TBCs on the metallic substrates. The present article addresses the TBCs f...
متن کاملMicrostructural investigations of EBPVD thermal barrier coatings
This paper deals with the morphology, constitutive phases and fine microstructures of some EBPVD processed yttria partially stabilized zirconia thermal barrier coatings. This study has been performed by X-ray diffraction and scanning and transmission electron microscopy. It was shown that the coatings studied were constituted of a single metastable tetragonal t' phase, as expected if one refers...
متن کاملThermophysical properties of thermal barrier coatings
Thin layers of thermal barrier coating (TBCs) are applied to metallic components of heat engines to reduce metal temperatures and to provide environmental protection. This results in increased engine efficiency and prolonged operational life. Of special current interest is the use of TBCs in aircraft engines. The TBCs, often yttria-stabilized zirconia (YSZ), are deposited on nickel or cobalt-ba...
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ژورنال
عنوان ژورنال: Surface and Coatings Technology
سال: 2010
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2010.08.151