Evolution behavior of rare-earth yttria modified silicide oxidation-resistant coating at 1700 oC

Chang Cong Wang; Ke Zhi Li; Dan Yang He; Xiao Hong Shi

doi:10.1016/j.jeurceramsoc.2020.06.012

Evolution behavior of rare-earth yttria modified silicide oxidation-resistant coating at 1700 ^oC

Chang Cong Wang, Ke Zhi Li, Dan Yang He, Xiao Hong Shi

School of Materials Sience and Engineering

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

16 Scopus citations

Abstract

Yttria-modified silicide (MoSi₂-Y₂O₃) oxidation-resistant coatings with multiple Y₂O₃ contents were prepared using supersonic atmospheric plasma spraying, and the oxidation resistance was investigated at 1700 °C with static atmosphere. Experimental results indicated that the sprayed MoSi₂-Y₂O₃ coating possessed good compactness, which adhered well to the SiC transition layer. Meanwhile, the Y₂O₃ addition greatly enhanced the bonding strength of the coating, and extended its service life at 1700 °C. Wherein the MoSi₂-20 wt.%Y₂O₃ coating exhibited the highest adhesive strength and best oxidation resistance with the lowest mass loss among all the coatings. In practice, the Y₂O₃ changed the microstructures of formed oxide glass scale during oxidation, and then modified the oxidation resistance of the coating. The action mechanism of Y₂O₃ on the oxidation behavior of MoSi₂-Y₂O₃ coating was analyzed.

Original language	English
Pages (from-to)	4419-4427
Number of pages	9
Journal	Journal of the European Ceramic Society
Volume	40
Issue number	13
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2020.06.012
State	Published - Oct 2020

Keywords

Coating
Composites
Oxidation
Silicide
Yttria

Access to Document

10.1016/j.jeurceramsoc.2020.06.012

Cite this

@article{f4c1b4e39b244dbeb65050609a5436b1,

title = "Evolution behavior of rare-earth yttria modified silicide oxidation-resistant coating at 1700 oC",

abstract = "Yttria-modified silicide (MoSi2-Y2O3) oxidation-resistant coatings with multiple Y2O3 contents were prepared using supersonic atmospheric plasma spraying, and the oxidation resistance was investigated at 1700 °C with static atmosphere. Experimental results indicated that the sprayed MoSi2-Y2O3 coating possessed good compactness, which adhered well to the SiC transition layer. Meanwhile, the Y2O3 addition greatly enhanced the bonding strength of the coating, and extended its service life at 1700 °C. Wherein the MoSi2-20 wt.%Y2O3 coating exhibited the highest adhesive strength and best oxidation resistance with the lowest mass loss among all the coatings. In practice, the Y2O3 changed the microstructures of formed oxide glass scale during oxidation, and then modified the oxidation resistance of the coating. The action mechanism of Y2O3 on the oxidation behavior of MoSi2-Y2O3 coating was analyzed.",

keywords = "Coating, Composites, Oxidation, Silicide, Yttria",

author = "Wang, {Chang Cong} and Li, {Ke Zhi} and He, {Dan Yang} and Shi, {Xiao Hong}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = oct,

doi = "10.1016/j.jeurceramsoc.2020.06.012",

language = "英语",

volume = "40",

pages = "4419--4427",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "13",

}

TY - JOUR

T1 - Evolution behavior of rare-earth yttria modified silicide oxidation-resistant coating at 1700 oC

AU - Wang, Chang Cong

AU - Li, Ke Zhi

AU - He, Dan Yang

AU - Shi, Xiao Hong

PY - 2020/10

Y1 - 2020/10

N2 - Yttria-modified silicide (MoSi2-Y2O3) oxidation-resistant coatings with multiple Y2O3 contents were prepared using supersonic atmospheric plasma spraying, and the oxidation resistance was investigated at 1700 °C with static atmosphere. Experimental results indicated that the sprayed MoSi2-Y2O3 coating possessed good compactness, which adhered well to the SiC transition layer. Meanwhile, the Y2O3 addition greatly enhanced the bonding strength of the coating, and extended its service life at 1700 °C. Wherein the MoSi2-20 wt.%Y2O3 coating exhibited the highest adhesive strength and best oxidation resistance with the lowest mass loss among all the coatings. In practice, the Y2O3 changed the microstructures of formed oxide glass scale during oxidation, and then modified the oxidation resistance of the coating. The action mechanism of Y2O3 on the oxidation behavior of MoSi2-Y2O3 coating was analyzed.

AB - Yttria-modified silicide (MoSi2-Y2O3) oxidation-resistant coatings with multiple Y2O3 contents were prepared using supersonic atmospheric plasma spraying, and the oxidation resistance was investigated at 1700 °C with static atmosphere. Experimental results indicated that the sprayed MoSi2-Y2O3 coating possessed good compactness, which adhered well to the SiC transition layer. Meanwhile, the Y2O3 addition greatly enhanced the bonding strength of the coating, and extended its service life at 1700 °C. Wherein the MoSi2-20 wt.%Y2O3 coating exhibited the highest adhesive strength and best oxidation resistance with the lowest mass loss among all the coatings. In practice, the Y2O3 changed the microstructures of formed oxide glass scale during oxidation, and then modified the oxidation resistance of the coating. The action mechanism of Y2O3 on the oxidation behavior of MoSi2-Y2O3 coating was analyzed.

KW - Coating

KW - Composites

KW - Oxidation

KW - Silicide

KW - Yttria

UR - http://www.scopus.com/inward/record.url?scp=85086178741&partnerID=8YFLogxK

U2 - 10.1016/j.jeurceramsoc.2020.06.012

DO - 10.1016/j.jeurceramsoc.2020.06.012

M3 - 文章

AN - SCOPUS:85086178741

SN - 0955-2219

VL - 40

SP - 4419

EP - 4427

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 13

ER -

Evolution behavior of rare-earth yttria modified silicide oxidation-resistant coating at 1700 ^oC

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this