Effective coatings are essential to counteract the effects of corrosion and degradation of exposed materials in high-temperature environments such as gas turbine engines. Thermal barrier coatings reviews the latest advances in processing and performance of thermal barrier coatings, as well as their failure mechanisms.
Part one reviews the materials and structures of thermal barrier coatings. Chapters cover both metallic and ceramic coating materials as well as nanostructured coatings. Part two covers established and advanced processing and spraying techniques, with chapters on the latest advances in plasma spraying and plasma vapour deposition as well as detonation gun spraying. Part three discusses the performance and failure of thermal barrier coatings, including oxidation and hot-corrosion, non-destructive evaluation and new materials, technologies and processes.
With its distinguished editors and international team of contributors, Thermal barrier coatings is an essential reference for professional engineers in such industries as energy production, aerospace and chemical engineering as well as academic researchers in materials.
Contributor contact details Preface Part I: Materials and structure Chapter 1: Thermal barrier coatings prepared by electron beam physical vapor deposition (EB–PVD) Abstract: 1.1 Introduction 1.2 Preparation process and parameters 1.3 Preparation processes of two-layered thermal barrier coatings (TBCs) 1.4 Factors affecting thermal cyclic behavior of TBCs 1.5 Preparation of graded thermal barrier coatings (GTBCs) 1.6 Failure mechanism 1.7 Conclusion Chapter 2: Ceramic thermal barrier coating materials Abstract: 2.1 Introduction 2.2 State-of-the-art ceramic thermal barrier coating (TBC) material – yttria stabilized zirconia (YSZ) 2.3 Zirconia doped with one or more oxides 2.4 Yttria stabilized hafnia and other alternative ceramic TBC materials 2.5 Lanthanum compounds, silicates and rare earth oxides 2.6 (Ca1-xMgx)Zr4(PO4)6 (CMZP), perovskite oxides and metal–glass composite 2.7 Future trends Chapter 3: Metallic coatings for high-temperature oxidation resistance Abstract: 3.1 Introduction 3.2 Oxidation-resistant metallic coatings and their fabrication techniques 3.3 Metallic coatings as bond coats for thermal barrier coatings (TBCs) 3.4 Conclusions 3.5 Acknowledgements Chapter 4: Nanostructured thermal barrier coatings Abstract: 4.1 Introduction 4.2 Spray-drying process making powders 4.3 Phase composition and microstructure of nanostructured thermal barrier coatings (TBCs) 4.4 Mechanical properties 4.5 Thermophysical properties and the failure behavior 4.6 Conclusion Part II: Processing and spraying techniques Chapter 5: Plasma spraying for thermal barrier coatings: processes and applications Abstract: 5.1 Introduction 5.2 Basic plasma concepts 5.3 Plasma spraying 5.4 Applications of plasma spraying 5.5 Conclusions 5.6 Acknowledgements Chapter 6: Processing, microstructures and properties of thermal barrier coatings by electron beam physical vapor deposition (EB–PVD) Abstract: 6.1 Introduction 6.2 Description of the physical principles of electron beam physical vapor deposition (EB–PVD) 6.3 Manufacturing of thermal barrier coatings (TBCs) by EB-PVD 6.4 EB-PVD TBC microstructure and its advantages over plasma-sprayed coatings 6.5 Hot-fatigue behavior and failure mechanisms of TBCs Chapter 7: Processing, microstructures and properties of thermal barrier coatings (TBCs) by plasma spraying (PS) Abstract: 7.1 Introduction 7.2 Processing of thermal barrier coatings (TBCs) by plasma spraying (PS) 7.3 Microstructures of TBCs processed by PS 7.4 Properties of TBCs processed by PS 7.5 Conclusion Chapter 8: Plasma-sprayed thermal barrier coatings with segmentation cracks Abstract: 8.1 Introduction 8.2 Manufacturing of segmented thermal barrier coatings (TBCs) 8.3 Microstructure of segmented TBCs 8.4 Thermophysical and mechanical properties of segmented TBCs 8.5 Thermal shock resistance and associate failure mechanism 8.6 Future trends Chapter 9: Detonation gun sprayed thermal barrier coatings Abstract: 9.1 Introduction 9.2 Detonation gun (D-gun) sprayed thermal barrier coatings (TBCs) 9.3 TBCs deposited through arc ion plating (AIP)/D-gun two-step technology 9.4 Future trends 9.5 Conclusion Part III: Performance of thermal barrier coatings Chapter 10: Oxidation and hot corrosion of thermal barrier coatings (TBCs) Abstract: 10.1 Introduction 10.2 Oxidation of thermal barrier coatings 10.3 Failure mechanisms of TBCs 10.4 The degradation mechanisms experienced by TBC systems exposed to deposits 10.5 Conclusions Chapter 11: Failure mechanism of thermal barrier coatings by electron beam physical vapor deposition (EB–PVD) under thermomechanical coupled loads Abstract: 11.1 Introduction 11.2 Establishment of gas turbine service environment simulation system 11.3 Failure mechanism of EB–PVD TBC under in-plane thermal gradient coupled with mechanical loading 11.4 Failure mechanism of EB–PVD TBC under 3-D thermal gradient coupled with mechanical loading 11.5 Conclusions Chapter 12: Non-destructive evaluation (NDE) of the failure of thermal barrier coatings Abstract: 12.1 Introduction 12.2 Failure of thermal barrier coatings (TBCs) 12.3 Development of failure inspection methods 12.4 Future trends Chapter 13: Substrate and bond coat related failure of thermal barrier coatings Abstract: 13.1 Introduction 13.2 Substrate related failure of thermal barrier coatings (TBCs) 13.3 Compatibility issues of nickel-based single-crystal superalloys with thermal barrier coating systems 13.4 Bond coat related failure of TBCs 13.5 Effect of bond coat on the TBC degradation mechanisms 13.6 Conclusions and future trends Chapter 14: Life prediction of thermal barrier coatings Abstract: 14.1 Introduction 14.2 The mechanical behavior of thermal barrier coating (TBC) systems under elevated temperatures 14.3 Life prediction for TBCs 14.4 Future trends 14.5 Conclusion Chapter 15: New materials, technologies and processes in thermal barrier coatings Abstract: 15.1 Introduction 15.2 Chemically modified yttria stabilized zirconia (YSZ) 15.3 Alternate low thermal conductivity (κ) materials 15.4 Microstructure modification 15.5 Advanced processing technologies 15.6 Future trends Index
Dr Huibin Xu is a Professor in the School of Material Science and Engineering at Beihang University (formerly Beijing University of Aeronautics), China. He is noted for his research on high-temperature corrosion and coating technology. Dr Hongbo Guo is an Associate Professor in the School of Material Science and Engineering at Beihang University (formerly Beijing University of Aeronautics), China. He is noted for his research on high-temperature corrosion and coating technology.
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Provides a comprehensive review of this important subject. --Materials World
