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Research Article | Open Access

Study on water corrosion behavior of ZrSiO4 materials

Ling LIUa,b, Wei ZHENGa,b, Zhuang MAa,b( ), Yanbo LIUa,b( )
School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
National Key Laboratory of Science and Technology on Materials under Shock and Impact, Beijing 100081, China
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Abstract

ZrSiO4 bulk was prepared by pressureless sintering process and ZrSiO4 coating was deposited on the SiCf/SiC substrate using air plasma method. The microstructures of ZrSiO4 bulk and ZrSiO4 coating are both dense. A preliminary study of a water vapor corrosion test for ZrSiO4 bulk and ZrSiO4 coating was performed under the conditions of 1.013×105 Pa, 90%H2O/10%O2, 1300 ℃, and low gas velocity. Results show that some pores appear on the surface of the ZrSiO4 bulk. The main crystal phase is ZrO2 and the weight loss of ZrSiO4 bulk is only 0.236 mg/cm2 after corrosion. The ZrSiO4 coating peels off from the substrate after 109 h. The number and intensity of diffraction peaks of ZrO2 in the coating increase, and the major crystal phase of the coating is still ZrSiO4. A porous microstructure accompanied with cracks is observed on the surface of ZrSiO4 coating after corrosion.

Keywords

ZrSiO4SiCf/SiC substrateenvironmental barrier coating (EBC)water vapor corrosion behavior

References

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Journal of Advanced Ceramics
Volume 7 Issue 4,
December 2018
Pages 336-342
DOI: 10.1007/s40145-018-0283-3

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Cite this article:
LIU L, ZHENG W, MA Z, et al. Study on water corrosion behavior of ZrSiO4 materials. Journal of Advanced Ceramics, 2018, 7(4): 336-342. https://doi.org/10.1007/s40145-018-0283-3

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Received: 14 March 2018
Revised: 07 May 2018
Accepted: 09 May 2018
Published: 21 November 2018
© The author(s) 2018

Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.