Development of Metal Based Thermal Barrier Coatings: Thermal Barrier Coatings for Internal Combustion/Diesel Engines - Softcover

Shin, Dong-il

Softcover

ISBN 10: 3639007263 ISBN 13: 9783639007268

Publisher: VDM Verlag Dr. Müller, 2008

Synopsis

Metal-based thermal barrier coatings (MBTBCs) have been produced, using Induction plasma spraying (IPS) of nanostructured alloy powders. Important advances have been made over recent years to ceramic-based thermal barrier coatings (TBCs) for internal combustion engines application, but they are not yet applied in mass production situations. Besides the important economic considerations, the reliability of ceramic TBCs is also an issue, due to the difficulty of predicting ¿in-service¿ lifetime. Through engineering of the nano/amorphous structure of MBTBCs, their thermal conductivity can be made as low as those of ceramic-based TBCs. The thermal conductivity of MBTBCs was found to be as low as 1.99W/m/K. Thermal expansion coefficient (TEC) of MBTBCs was 13E-6/K, which is close to the TEC of cast iron and thus, closer to the TEC values of aluminium alloys than are conventional TBCs. Fracture toughness of MBTBCs has also been assessed by use of Vickers hardness tests, with a 500g load for 15s, and there are no measurable crack developments around ¿indented¿ areas on MBTBCs tested.

About this title

About the Author

Ph.D. in Chemical Engineering at Universite de Sherbrooke, Quebec, Canada in 2005; M.S. in Materials Science & Engineering, State University of New York at Stony Brook, N.Y. USA in 1999; B.E. in Engineering Science, State University of New York at Stony Brook, N.Y. USA in 1996

Edition details

• Publisher: VDM Verlag Dr. Müller
• Publication date: 2008
• ISBN 10: 3639007263
• ISBN 13: 9783639007268
• Binding: Paperback
• Language: English
• Number of pages: 144