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Journal of Advanced Ceramics 2013, 2(4): 313-317 https://doi.org/10.1007/s40145-013-0077-6
Research Article | Open Access | Issue | Published: 04 December 2013

Corrosion behavior of Ti3AlC2 in molten KOH at 700 °C

Show Author's Information Dandan SUN,  Aiguo ZHOU*( ),  Zhengyang LI,  Libo WANG
Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China
Keywords:
Raman spectroscopy, Ti3AlC2, alkaline corrosion, hot corrosion
Cite this article:
SUN D, ZHOU A, LI Z, et al. Corrosion behavior of Ti3AlC2 in molten KOH at 700 °C. Journal of Advanced Ceramics, 2013, 2(4): 313-317. https://doi.org/10.1007/s40145-013-0077-6
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Abstract Full text About this article

This paper investigated the corrosion behaviors of Ti3AlC2 at 700 ℃ in molten KOH with various mass ratios. If the mass ratio of KOH:Ti3AlC2≤2, Ti3AlC2 can resist KOH hot corrosion in 2 h. Ti3AlC2 suffered serious corrosion attack if the mass ratio≥3. The main compositions of corroded samples were amorphous graphite and potassium titanates (K2O·nTiO2). If the samples were washed by acid and dried, potassium titanates could decompose to K2O and amorphous rutile. Based on the experimental results, a corrosion mechanism of Ti3AlC2 in molten KOH was proposed.


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About this article

Corrosion behavior of Ti3AlC2 in molten KOH at 700 °C

Show Author's information Dandan SUN, Aiguo ZHOU*( ), Zhengyang LI, Libo WANG
Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China

Abstract

This paper investigated the corrosion behaviors of Ti3AlC2 at 700 ℃ in molten KOH with various mass ratios. If the mass ratio of KOH:Ti3AlC2≤2, Ti3AlC2 can resist KOH hot corrosion in 2 h. Ti3AlC2 suffered serious corrosion attack if the mass ratio≥3. The main compositions of corroded samples were amorphous graphite and potassium titanates (K2O·nTiO2). If the samples were washed by acid and dried, potassium titanates could decompose to K2O and amorphous rutile. Based on the experimental results, a corrosion mechanism of Ti3AlC2 in molten KOH was proposed.

Keywords: Raman spectroscopy, Ti3AlC2, alkaline corrosion, hot corrosion

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Publication history
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Publication history

Received: 07 April 2013
Revised: 23 July 2013
Accepted: 08 August 2013
Published: 04 December 2013
Issue date: December 2013

Copyright

© The author(s) 2013

Acknowledgements

This work was supported by the National Nature Science Foundation of China (Grant Nos. 51002045, 51205111), Program for Innovative Research Team of Henan Polytechnic University (T2013-4), and Opening Project of Henan Key Discipline Open Laboratory of Mining Engineering Materials (MEM12-5).

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Open Access: This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

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