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dc.contributor.author백운규-
dc.date.accessioned2018-03-01T05:08:06Z-
dc.date.available2018-03-01T05:08:06Z-
dc.date.issued2013-01-
dc.identifier.citationSurface and Coatings Technology, 2013, 215, P.46-51en_US
dc.identifier.issn0257-8972-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S025789721201047X-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/41468-
dc.description.abstractThe effects of post heat treatment and coating parameters on the microstructural development of thermal barrier coatings (TBCs) have been investigated and the thermal durability related to the microstructural evolution has been evaluated through cyclic thermal exposure tests. TBC systems with thicknesses of 2000 and 200 mu m in the top and bond coats, respectively, were prepared with the air-plasma spray system using a 9 MB gun with ZrO2-8 wt.% Y2O3 (METCO 204 C-NS) for the top coat and Ni-based metallic powder (AMDRY 962) for the bond coat. The post heating was performed at a temperature of 1000 degrees C for 3 h with a heating rate of 5 degrees C/min in flowing argon (Ar) gas at 200 ml/min. The thermal exposure tests were performed with a dwell time of 60 min for 874 cycles using a specially designed apparatus one side of the sample was exposed to a high temperature of 1100 degrees C and the other side was air cooled to 950 degrees C. The post heat treatment is an efficient process in improving the thermal durability of thick TBCs, and the TBC with porous microstructure obtained by controlling coating parameters shows a better thermal durability than those with intermediate or dense microstructures. Results indicate that post heat treatment and microstructural control are important in proposing efficient processes to improve the lifetime performance of thick TBCs in high-temperature environments. (C) 2012 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipThis work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) (2011-0030802), by the Power Generation & Electricity Delivery of the Korean Institute of Energy Technology Evaluation and Planning (KETEP) grants funded by the Korean Ministry of Knowledge Economy (2009T100200025/2011T100200224), and by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Korean Ministry of Knowledge Economy (10041233).en_US
dc.language.isoenen_US
dc.publisherElsevier Science SAen_US
dc.subjectThermal barrier coatingen_US
dc.subjectCoating parameteren_US
dc.subjectMicrostructureen_US
dc.subjectPost heat treatmenten_US
dc.subjectThermal durabilityen_US
dc.titleEffect of post heat treatment on thermal durability of thermal barrier coatings in thermal fatigue testsen_US
dc.typeArticleen_US
dc.relation.volume215-
dc.identifier.doi10.1016/j.surfcoat.2012.08.078-
dc.relation.page46-51-
dc.relation.journalSURFACE & COATINGS TECHNOLOGY-
dc.contributor.googleauthorMyoung, Sang-Won-
dc.contributor.googleauthorLee, Seoung-Soo-
dc.contributor.googleauthorKim, Hyun-Seong-
dc.contributor.googleauthorKim, Min-Sik-
dc.contributor.googleauthorJung, Yeon-Gil-
dc.contributor.googleauthorJung, Sung-Il-
dc.contributor.googleauthorWoo, Ta-Kwan-
dc.contributor.googleauthorPaik, Un-gyu-
dc.relation.code2013012118-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ENERGY ENGINEERING-
dc.identifier.pidupaik-
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COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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