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Slag corrosion resistance of Al4SiC4

  • Chao Yu , Chengji Deng , Hongxi Zhu , Zhengliang Xue and Jun Ding
Published/Copyright: February 22, 2017
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 108 Issue 3

Abstract

Powdered mixtures of Al2O3/SiO2/C/Al were heated together to synthesize Al4SiC4 and the corrosion resistance of the Al4SiC4 product was subsequently investigated. The results show that the addition of aluminium accelerates the synthesis of Al4SiC4. The slag corrosion resistance of the Al4SiC4 product is excellent (as determined using the static-crucible method). At high temperatures, the surface of the Al4SiC4 initially reacts with oxygen to form Al2O3 and SiO2. The Al2O3 formed dissolves in molten slag, and further reacts with MgO to form MgAl2O4. The above reaction processes can form a protective layer on the surface of the ternary carbide, which inhibits further corrosion of the Al4SiC4 material.

Keywords: Al4SiC4; Aluminium; Slag resistance; Corrosion resistance
*Correspondence address, Prof. Hongxi Zhu, The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, P. R. China, Tel.: +862768862328, Fax: +862768862085, E-mail:

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Received: 2016-09-29
Accepted: 2016-12-19
Published Online: 2017-02-22
Published in Print: 2017-03-13

© 2017, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111469
Keywords for this article
Al4SiC4; Aluminium; Slag resistance; Corrosion resistance

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Effect of grain defects on the mechanical behavior of nickel-based single crystal superalloy
  5. Evolution of mechanical properties and microstructure of differently cryogenically treated hot die steel AISI–H13
  6. Microstructure and mechanical properties of nickel particle reinforced magnesium composite: impact of reinforcement introduction method
  7. Microstructure and mechanical properties of carbon nanotube-reinforced ZK61 magnesium alloy composites prepared by spark plasma sintering
  8. Solidification microstructures of Cu–Zr–Al–Y BMG produced by casting in a wedge-shaped copper mold
  9. Energy spectrum analysis of anodic oxidation film surface–interface on 7475 aluminum alloy after salt spray corrosion
  10. Fabrication of Ni/SiC composite powder by mechanical alloying and its effects on properties of copper matrix composites
  11. The sintering behavior and physical properties of Li2CO3-doped Bi0.5(Na0.8K0.2)0.5TiO3 lead-free ceramics
  12. The effect of heating rate on the microstructural breakdown required for thixoformability
  13. Nano-particles in powder injection molding of an aluminum matrix composite: Rheological behavior, production and properties
  14. Short Communications
  15. Preparation of vaterite CaCO3 microspheres by fast precipitation method
  16. Slag corrosion resistance of Al4SiC4
  17. DGM News
  18. DGM News
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