MICROSTRUCTURAL EVOLUTION AND RESIDUAL STRESSES OF AIR-PLASMA SPRAYED THERMAL BARRIER COATINGS UNDER THERMAL EXPOSURE
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kwon, Jae-Young | - |
dc.contributor.author | Kim, Jae-Hyoun | - |
dc.contributor.author | Lee, Sang-Yeop | - |
dc.contributor.author | Jung, Yeon-Gil | - |
dc.contributor.author | Cho, Hyun | - |
dc.contributor.author | Yi, Dong-Kee | - |
dc.contributor.author | Paik, Ungyu | - |
dc.date.accessioned | 2022-12-20T17:26:38Z | - |
dc.date.available | 2022-12-20T17:26:38Z | - |
dc.date.created | 2022-08-27 | - |
dc.date.issued | 2010-06 | - |
dc.identifier.issn | 0218-625X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/174847 | - |
dc.description.abstract | Microstructural evolution and fracture behavior of zirconia (ZrO2)-based thermal barrier coatings (TBCs) were investigated under thermal exposure. New ZrO2 granule with 8 wt.% yttria (Y2O3) with a deformed hollow morphology was developed through a spray drying process and employed to prepare TBCs. The thermal exposure tests were conducted at 1210 degrees C with a dwell time of 100 h till 800 h. The residual stress at the interface between top coat and thermally grown oxide (TGO) layer was measured using a nanoindentation technique before and after thermal exposure. Vertical cracks on the top coat were newly formed and interlamellar cracks at the interface were enhanced after the thermal exposure of 800 h. Especially, partial delamination was observed at the interface after the thermal exposure of 800 h in TBC samples tested. The microstructural evolution in the top coat could be defined through load-displacement curves, showing a higher load or a less displacement after the thermal exposure of 800 h. The stress state was strongly dependent on the TGO geometry, resulting in the compressive stresses at the "valleys" or the "troughs," and the tensile stresses at the "crests" or peak areas, in the ranges of -500 to -75 MPa and of +168 to +24 MPa, respectively. These stress terms incorporated with resintering during thermal exposure affected the mechanical properties such as hardness and elastic modulus of the top coat. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WORLD SCIENTIFIC PUBL CO PTE LTD | - |
dc.title | MICROSTRUCTURAL EVOLUTION AND RESIDUAL STRESSES OF AIR-PLASMA SPRAYED THERMAL BARRIER COATINGS UNDER THERMAL EXPOSURE | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Paik, Ungyu | - |
dc.identifier.doi | 10.1142/S0218625X10013965 | - |
dc.identifier.scopusid | 2-s2.0-77956092995 | - |
dc.identifier.wosid | 000281265100012 | - |
dc.identifier.bibliographicCitation | SURFACE REVIEW AND LETTERS, v.17, no.3, pp.337 - 343 | - |
dc.relation.isPartOf | SURFACE REVIEW AND LETTERS | - |
dc.citation.title | SURFACE REVIEW AND LETTERS | - |
dc.citation.volume | 17 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 337 | - |
dc.citation.endPage | 343 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | MECHANISMS | - |
dc.subject.keywordPlus | NANOINDENTATION | - |
dc.subject.keywordPlus | DURABILITY | - |
dc.subject.keywordPlus | STIFFNESS | - |
dc.subject.keywordPlus | DAMAGE | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordAuthor | Thermal barrier coating (TBC) | - |
dc.subject.keywordAuthor | microstructure | - |
dc.subject.keywordAuthor | interface | - |
dc.subject.keywordAuthor | thermally grown oxide (TGO) | - |
dc.subject.keywordAuthor | residual stress | - |
dc.identifier.url | https://www.worldscientific.com/doi/abs/10.1142/S0218625X10013965?cookieSet=1 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.