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Recycling of casting waste: The potential for improving corrosion resistance of chamotte refractory bricks.

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Title: Recycling of casting waste: The potential for improving corrosion resistance of chamotte refractory bricks.
Authors: Bostanci, Veysel Murat1 (AUTHOR) veyselmurat.bostanci@erbakan.edu.tr, Bahtli, Tuba2 (AUTHOR)
Source: Ceramics International. Sep2025:Part A, Vol. 51 Issue 21, p33166-33173. 8p.
Subjects: Precision casting, Sand casting, Molten glass, Corrosion resistance, Sustainability
Abstract: This study explores the impact of incorporating waste precision casting sands into chamotte refractory bricks on their corrosion resistance. The corrosion tests compared the Na and Ca contents from glass slag and their penetration depths within the brick structure. The results showed that Na and Ca concentrations were highest in Region 1 (the glass-refractory region) across all samples and progressively decreased with depth. The reference sample experienced the most severe slag attack, whereas the incorporation of waste precision casting sands effectively reduced this degradation. Additionally, it was observed that the material's bulk density played a significant role in enhancing corrosion resistance, as a denser structure limited the penetration of corrosive glass melt into internal voids. Post-corrosion XRD analysis revealed the disappearance of specific crystalline peaks, particularly those corresponding to quartz and cristobalite, due to their transformation into an amorphous glassy phase during corrosion. Furthermore, increasing the zircon content in the material significantly reduced the glass slag penetration. The reference sample exhibited the most significant penetration, whereas the A-coded sample, with the highest zircon content, showed the lowest penetration depth. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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  Data: Recycling of casting waste: The potential for improving corrosion resistance of chamotte refractory bricks.
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  Data: <searchLink fieldCode="AR" term="%22Bostanci%2C+Veysel+Murat%22">Bostanci, Veysel Murat</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> veyselmurat.bostanci@erbakan.edu.tr</i><br /><searchLink fieldCode="AR" term="%22Bahtli%2C+Tuba%22">Bahtli, Tuba</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Sep2025:Part A, Vol. 51 Issue 21, p33166-33173. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Precision+casting%22">Precision casting</searchLink><br /><searchLink fieldCode="DE" term="%22Sand+casting%22">Sand casting</searchLink><br /><searchLink fieldCode="DE" term="%22Molten+glass%22">Molten glass</searchLink><br /><searchLink fieldCode="DE" term="%22Corrosion+resistance%22">Corrosion resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Sustainability%22">Sustainability</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This study explores the impact of incorporating waste precision casting sands into chamotte refractory bricks on their corrosion resistance. The corrosion tests compared the Na and Ca contents from glass slag and their penetration depths within the brick structure. The results showed that Na and Ca concentrations were highest in Region 1 (the glass-refractory region) across all samples and progressively decreased with depth. The reference sample experienced the most severe slag attack, whereas the incorporation of waste precision casting sands effectively reduced this degradation. Additionally, it was observed that the material's bulk density played a significant role in enhancing corrosion resistance, as a denser structure limited the penetration of corrosive glass melt into internal voids. Post-corrosion XRD analysis revealed the disappearance of specific crystalline peaks, particularly those corresponding to quartz and cristobalite, due to their transformation into an amorphous glassy phase during corrosion. Furthermore, increasing the zircon content in the material significantly reduced the glass slag penetration. The reference sample exhibited the most significant penetration, whereas the A-coded sample, with the highest zircon content, showed the lowest penetration depth. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Group: Ab
  Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.ceramint.2025.05.049
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Sand casting
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      – SubjectFull: Molten glass
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      – SubjectFull: Corrosion resistance
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              Text: Sep2025:Part A
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              Y: 2025
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