Calcium-magnesium-aluminosilicate corrosion behaviors of rare-earth disilicates at 1400 °C

被引：114

作者：

Liu, Jia ^{[1
]}

Zhang, Litong ^{[1
]}

Liu, Qiaomu ^{[3
]}

Cheng, Laifei ^{[1
]}

Wang, Yiguang ^{[1
,2
]}

机构：

[1] Northwestern Polytech Univ, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Shaanxi, Peoples R China

[2] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China

[3] China Gas Turbine Estab, Chengdu 610500, Sichuan, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2013年 / 33卷 / 15-16期

关键词：

Environmental barrier coatings; CMAS; Rare-earth disilicates; Corrosion; ENVIRONMENTAL BARRIER COATINGS; YTTRIUM SILICATE COATINGS; WATER-VAPOR CORROSION; C/SIC COMPOSITES; SILICOALUMINUM CARBONITRIDE; HOT CORROSION; CERAMICS; OXIDATION; OXIDATION/CORROSION; PROTECTION;

D O I：

10.1016/j.jeurceramsoc.2013.05.030

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Environmental bather coatings (EBCs) are used to prevent oxidation of underlying ceramic matrix composite (CMC) structural components in gas turbines. When the siliceous minerals deposit on the surface of EBCs, a glassy melt of calcium-magnesium-aluminosilicate (CMAS) will be formed, leading to the EBCs degradation. In this study, seven rare-earth disilicates (RE2Si2O7, RE=Yb, Lu, La, Gd, Eu, Sc, and Y) were fabricated to analyze their CMAS corrosion behaviors. The results indicated that the RE2Si2O7 could react with the CMAS in the temperature range of 1250-1350 degrees C. Reaction zones formed at the interfaces. For the Yb2Si2O7, Lu2Si2O7, La2Si2O7, Eu2Si2O7 and Gd2Si2O7, the reaction zones dissolved into the molten CMAS and separated from the RE2Si2O7. As for the Sc2Si2O7 and Y2Si2O7, the reaction zones could stay at the interface. They could effectively block the molten CMAS to penetrate into the RE2Si2O7 and protect them from CMAS corrosion. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：3419 / 3428

页数：10

共 29 条

[1] Thermal and chemical properties of diopside-wollastonite glass-ceramics in the SiO2-CaO-MgO system from raw materials
Abdel-Hameed, SAM
El-Kheshen, AA
[J]. CERAMICS INTERNATIONAL, 2003, 29 (03) : 265 - 269
[2] Silicoaluminum carbonitride with anomalously high resistance to oxidation and hot corrosion
An, LN
Wang, YG
Bharadwaj, L
Zhang, LG
Fan, Y
Jiang, DP
Sohn, YH
Desai, VH
Kapat, J
Chow, LC
[J]. ADVANCED ENGINEERING MATERIALS, 2004, 6 (05) : 337 - 340
[3] Aparicio M, 2000, J AM CERAM SOC, V83, P1351, DOI 10.1111/j.1151-2916.2000.tb01392.x
[4] Accelerated oxidation of SiCCMC's by water vapor and protection via environmental barrier coating approach
Eaton, HE
Linsey, GD
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2002, 22 (14-15) : 2741 - 2747
[5] CMAS degradation of environmental barrier coatings
Grant, Kendra M.
Kramer, Stephan
Lofvander, Jan P. A.
Levi, Carlos G.
[J]. SURFACE & COATINGS TECHNOLOGY, 2007, 202 (4-7) : 653 - 657
[6] Chemical and Mechanical Consequences of Environmental Barrier Coating Exposure to Calcium-Magnesium-Aluminosilicate
Harder, Bryan J.
Ramirez-Rico, Joaquin
Almer, Jonathan D.
Lee, Kang N.
Faber, Katherine T.
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2011, 94 : S178 - S185
[7] Internal friction behavior of C/SiC composites with environmental barrier coatings in corrosive environment
Hong Z.
Cheng L.
Zhang L.
Wang Y.
[J]. International Journal of Applied Ceramic Technology, 2011, 8 (02) : 342 - 350
[8] Water Vapor Corrosion Behavior of Scandium Silicates at 1400°C
Hong, Zhiliang
Cheng, Laifei
Zhang, Litong
Wang, Yiguang
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (01) : 193 - 196
[9] CORROSION OF SILICON-BASED CERAMICS IN COMBUSTION ENVIRONMENTS
JACOBSON, NS
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1993, 76 (01) : 3 - 28
[10] Oxidation and corrosion of ceramics and ceramic matrix composites
Jacobson, NS
Opila, EJ
Lee, KN
[J]. CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2001, 5 (04) : 301 - 309

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