Hot-corrosion behavior of calcium-magnesium aluminosilicate melts on Ba1/3Sr1/3Ca1/3Al2Si2O8

Shuai Zhang; Shiliang Luan; Ke Ren; Baosheng Xu; Yiguang Wang

doi:10.1016/j.jeurceramsoc.2023.07.032

Hot-corrosion behavior of calcium-magnesium aluminosilicate melts on Ba_1/3Sr_1/3Ca_1/3Al₂Si₂O₈

Shuai Zhang, Shiliang Luan, Ke Ren^*, Baosheng Xu, Yiguang Wang

^*Corresponding author for this work

Institute of Advanced Structure Technology

Beijing Institute of Technology

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

3 Citations (Scopus)

Abstract

Hot-corrosion behavior of Ba_1/3Sr_1/3Ca_1/3Al₂Si₂O₈ (BSCAS) in the presence of molten calcium-magnesium-aluminum-silicate (CMAS) is investigated in the temperature range of 1250–1350 °C. In comparison, the hot corrosion behavior of Ba_0.5Sr_0.5Al₂Si₂O₈ (BSAS) is also studied under the same conditions. The results indicate that CMAS corrosion of both BSCAS and BSAS is caused by the interdiffusion of Ba/Sr and Ca between CMAS and corroded samples. The presence of Ca cations in BSCAS lowers the diffusion driving force of Ca cations between CMAS and BSCAS, resulting in a reduced diffusion rate of Ca cations from CMAS into BSCAS. Moreover, the sluggish diffusion effect of multi-component cations hinders the outward diffusion of Ba/Sr cations from BSCAS. Thus, the BSCAS shows a better CMAS corrosion resistance than BSAS.

Original language	English
Pages (from-to)	7111-7117
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	43
Issue number	15
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2023.07.032
Publication status	Published - Dec 2023

Keywords

CMAS corrosion
Ceramic matrix composites
Environmental barrier coatings
Homogeneous cations
Multi-component cations

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10.1016/j.jeurceramsoc.2023.07.032

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title = "Hot-corrosion behavior of calcium-magnesium aluminosilicate melts on Ba1/3Sr1/3Ca1/3Al2Si2O8",

abstract = "Hot-corrosion behavior of Ba1/3Sr1/3Ca1/3Al2Si2O8 (BSCAS) in the presence of molten calcium-magnesium-aluminum-silicate (CMAS) is investigated in the temperature range of 1250–1350 °C. In comparison, the hot corrosion behavior of Ba0.5Sr0.5Al2Si2O8 (BSAS) is also studied under the same conditions. The results indicate that CMAS corrosion of both BSCAS and BSAS is caused by the interdiffusion of Ba/Sr and Ca between CMAS and corroded samples. The presence of Ca cations in BSCAS lowers the diffusion driving force of Ca cations between CMAS and BSCAS, resulting in a reduced diffusion rate of Ca cations from CMAS into BSCAS. Moreover, the sluggish diffusion effect of multi-component cations hinders the outward diffusion of Ba/Sr cations from BSCAS. Thus, the BSCAS shows a better CMAS corrosion resistance than BSAS.",

keywords = "CMAS corrosion, Ceramic matrix composites, Environmental barrier coatings, Homogeneous cations, Multi-component cations",

author = "Shuai Zhang and Shiliang Luan and Ke Ren and Baosheng Xu and Yiguang Wang",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = dec,

doi = "10.1016/j.jeurceramsoc.2023.07.032",

language = "English",

volume = "43",

pages = "7111--7117",

journal = "Journal of the European Ceramic Society",

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TY - JOUR

T1 - Hot-corrosion behavior of calcium-magnesium aluminosilicate melts on Ba1/3Sr1/3Ca1/3Al2Si2O8

AU - Zhang, Shuai

AU - Luan, Shiliang

AU - Ren, Ke

AU - Xu, Baosheng

AU - Wang, Yiguang

PY - 2023/12

Y1 - 2023/12

N2 - Hot-corrosion behavior of Ba1/3Sr1/3Ca1/3Al2Si2O8 (BSCAS) in the presence of molten calcium-magnesium-aluminum-silicate (CMAS) is investigated in the temperature range of 1250–1350 °C. In comparison, the hot corrosion behavior of Ba0.5Sr0.5Al2Si2O8 (BSAS) is also studied under the same conditions. The results indicate that CMAS corrosion of both BSCAS and BSAS is caused by the interdiffusion of Ba/Sr and Ca between CMAS and corroded samples. The presence of Ca cations in BSCAS lowers the diffusion driving force of Ca cations between CMAS and BSCAS, resulting in a reduced diffusion rate of Ca cations from CMAS into BSCAS. Moreover, the sluggish diffusion effect of multi-component cations hinders the outward diffusion of Ba/Sr cations from BSCAS. Thus, the BSCAS shows a better CMAS corrosion resistance than BSAS.

AB - Hot-corrosion behavior of Ba1/3Sr1/3Ca1/3Al2Si2O8 (BSCAS) in the presence of molten calcium-magnesium-aluminum-silicate (CMAS) is investigated in the temperature range of 1250–1350 °C. In comparison, the hot corrosion behavior of Ba0.5Sr0.5Al2Si2O8 (BSAS) is also studied under the same conditions. The results indicate that CMAS corrosion of both BSCAS and BSAS is caused by the interdiffusion of Ba/Sr and Ca between CMAS and corroded samples. The presence of Ca cations in BSCAS lowers the diffusion driving force of Ca cations between CMAS and BSCAS, resulting in a reduced diffusion rate of Ca cations from CMAS into BSCAS. Moreover, the sluggish diffusion effect of multi-component cations hinders the outward diffusion of Ba/Sr cations from BSCAS. Thus, the BSCAS shows a better CMAS corrosion resistance than BSAS.

KW - CMAS corrosion

KW - Ceramic matrix composites

KW - Environmental barrier coatings

KW - Homogeneous cations

KW - Multi-component cations

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U2 - 10.1016/j.jeurceramsoc.2023.07.032

DO - 10.1016/j.jeurceramsoc.2023.07.032

M3 - Article

AN - SCOPUS:85165242974

SN - 0955-2219

VL - 43

SP - 7111

EP - 7117

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 15

ER -

Hot-corrosion behavior of calcium-magnesium aluminosilicate melts on Ba_1/3Sr_1/3Ca_1/3Al₂Si₂O₈

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