서스펜션 플라즈마 용사법을 이용한 La₂Zr₂O7/YSZ 2층세라믹 열차폐코팅의 제조와 특성평가

Rare-earth zirconates, such as La2Zr2O7 and Gd2Zr2O7, have been investigated as one of the candidates for replacing conventional yttria-stabilized zirconia (YSZ) for thermal barrier coating (TBC) applications at higher turbine inlet temperatures. In this study, double-ceramic-layer (DCL) TBCs of YSZ...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Biuletyn Uniejowski 2015, 48(6), , pp.315-321
Hauptverfasser:	권창섭(Chang-Sup Kwon), 이수진(Sujin Lee), 이성민(Sung-Min Lee), 오윤석(Yoon-Suk Oh), 김형태(Hyung-Tae Kim), 장병국(Byung-Koog Jang), 김성원(Seongwon Kim)
Format:	Artikel
Sprache:	kor
Schlagworte:	기계공학
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Rare-earth zirconates, such as La2Zr2O7 and Gd2Zr2O7, have been investigated as one of the candidates for replacing conventional yttria-stabilized zirconia (YSZ) for thermal barrier coating (TBC) applications at higher turbine inlet temperatures. In this study, double-ceramic-layer (DCL) TBCs of YSZ 1st layer and La2Zr2O7 top coat layer are fabricated by suspension plasma spray with serial liquid feeders. Microstructures, hardness profiles, and thermal durability of DCL-TBCs are also characterized. Fabricated DCL-TBCs of YSZ/ La2Zr2O7 exhibit excellent properties, such as adhesion strength (>25 MPa) and electrical thermal fatigue (~1429 cycles), which are comparable with TBCs fabricated by atmospheric plasma spray. KCI Citation Count: 3
ISSN:	1225-8024 2299-8403 2288-8403
DOI:	10.5695/JKISE.2015.48.6.315