Novel thermal barrier coatings repel and resist molten silicate deposits

Baopeng Zhang; Wenjia Song; Liangliang Wei; Yuxuan Xiu; Huibin Xu; Donald B. Dingwell; Hongbo Guo

doi:10.1016/j.scriptamat.2018.12.028

Novel thermal barrier coatings repel and resist molten silicate deposits

Baopeng Zhang
, Wenjia Song^*
, Liangliang Wei
, Yuxuan Xiu
, Huibin Xu
, Donald B. Dingwell
, Hongbo Guo

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University
Ludwig Maximilian University of Munich

Research output: Contribution to journal › Article › peer-review

88 Scopus citations

Abstract

Optimization of the resistance of thermal barrier coatings (TBCs) to environmental particles is an area of considerable current research. Here, we present a novel methods, incorporating plasma spray physical vapor deposition (PS-PVD), in order to fabricate a novel yttria-stabilized zirconia (YSZ) TBC which is highly phobic (i.e. non-wettable) with respect to CaO-MgO-Al ₂ O ₃ -SiO ₂ (CMAS) particles. At 1250 °C, CMAS particles form liquid droplets which are readily repelled by the TBC surface, diminishing adherence to and penetration into the TBC. This effectiveness of the TBC in resisting wetting by molten CMAS deposits is interpreted to result from its lotus-leaf-like dual-scale microstructure.

Original language	English
Pages (from-to)	71-76
Number of pages	6
Journal	Scripta Materialia
Volume	163
DOIs	https://doi.org/10.1016/j.scriptamat.2018.12.028
State	Published - 1 Apr 2019

Keywords

CMAS repellent
Plasma spray physical vapor deposition
Thermal barrier coatings
Yttria-stabilized zirconia

Access to Document

10.1016/j.scriptamat.2018.12.028

Cite this

@article{ca493d4b1b934a969fd0994943451a63,

title = "Novel thermal barrier coatings repel and resist molten silicate deposits",

abstract = " Optimization of the resistance of thermal barrier coatings (TBCs) to environmental particles is an area of considerable current research. Here, we present a novel methods, incorporating plasma spray physical vapor deposition (PS-PVD), in order to fabricate a novel yttria-stabilized zirconia (YSZ) TBC which is highly phobic (i.e. non-wettable) with respect to CaO-MgO-Al 2 O 3 -SiO 2 (CMAS) particles. At 1250 °C, CMAS particles form liquid droplets which are readily repelled by the TBC surface, diminishing adherence to and penetration into the TBC. This effectiveness of the TBC in resisting wetting by molten CMAS deposits is interpreted to result from its lotus-leaf-like dual-scale microstructure.",

keywords = "CMAS repellent, Plasma spray physical vapor deposition, Thermal barrier coatings, Yttria-stabilized zirconia",

author = "Baopeng Zhang and Wenjia Song and Liangliang Wei and Yuxuan Xiu and Huibin Xu and Dingwell, \{Donald B.\} and Hongbo Guo",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2019",

month = apr,

day = "1",

doi = "10.1016/j.scriptamat.2018.12.028",

language = "英语",

volume = "163",

pages = "71--76",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

}

TY - JOUR

T1 - Novel thermal barrier coatings repel and resist molten silicate deposits

AU - Zhang, Baopeng

AU - Song, Wenjia

AU - Wei, Liangliang

AU - Xiu, Yuxuan

AU - Xu, Huibin

AU - Dingwell, Donald B.

AU - Guo, Hongbo

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Optimization of the resistance of thermal barrier coatings (TBCs) to environmental particles is an area of considerable current research. Here, we present a novel methods, incorporating plasma spray physical vapor deposition (PS-PVD), in order to fabricate a novel yttria-stabilized zirconia (YSZ) TBC which is highly phobic (i.e. non-wettable) with respect to CaO-MgO-Al 2 O 3 -SiO 2 (CMAS) particles. At 1250 °C, CMAS particles form liquid droplets which are readily repelled by the TBC surface, diminishing adherence to and penetration into the TBC. This effectiveness of the TBC in resisting wetting by molten CMAS deposits is interpreted to result from its lotus-leaf-like dual-scale microstructure.

AB - Optimization of the resistance of thermal barrier coatings (TBCs) to environmental particles is an area of considerable current research. Here, we present a novel methods, incorporating plasma spray physical vapor deposition (PS-PVD), in order to fabricate a novel yttria-stabilized zirconia (YSZ) TBC which is highly phobic (i.e. non-wettable) with respect to CaO-MgO-Al 2 O 3 -SiO 2 (CMAS) particles. At 1250 °C, CMAS particles form liquid droplets which are readily repelled by the TBC surface, diminishing adherence to and penetration into the TBC. This effectiveness of the TBC in resisting wetting by molten CMAS deposits is interpreted to result from its lotus-leaf-like dual-scale microstructure.

KW - CMAS repellent

KW - Plasma spray physical vapor deposition

KW - Thermal barrier coatings

KW - Yttria-stabilized zirconia

UR - https://www.scopus.com/pages/publications/85059743567

U2 - 10.1016/j.scriptamat.2018.12.028

DO - 10.1016/j.scriptamat.2018.12.028

M3 - 文章

AN - SCOPUS:85059743567

SN - 1359-6462

VL - 163

SP - 71

EP - 76

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Novel thermal barrier coatings repel and resist molten silicate deposits

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this