Skip to main content
SpringerLink
Log in

Effect of Mg(OH)2 and sintering temperature on the hydration resistance of CaO aggregate by thermal decomposition

  • Research
  • Published:
Journal of the Australian Ceramic Society Aims and scope Submit manuscript

Abstract

In spite of the advantages of CaO refractories, such as high refractoriness, potential to produce pure steel molten, and high alkaline corrosion resistance, their application has been limited due to its poor hydration resistance. Introducing additives to improve the hydration resistance of lime is a novel method. The influences of Mg(OH)2 and sintering temperatures on the sintering and hydration resistance of CaO aggregates that were produced by thermal decomposition were investigated in this paper. The purpose of this work was to produce high-purity CaO raw material with high density, low porosity, well grain growth, and good hydration resistance economically. The sintered samples were characterized by bulk density, apparent porosity, surface appearance, and microstructure. The results indicated that (1) Mg(OH)2 promoted the grain growth of CaO, reduced the apparent porosity, and improved the density of the specimens. The hydration resistance of the samples was increased. (2) Increasing the sintering temperature improved the hydration resistance of the specimens obviously in the experiment. (3) Grain size of CaO was more uniform with the increment of Mg(OH)2 content, and the density of the compacts was improved.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

  1. Stendera, J.W., Riedl, J.R.: Recent experience with dolomite in large steel ladles. Iron and Steelmaker. 13, 3): 1–3):23 (1956)

    Google Scholar 

  2. Tindyala, M.A., Brown Jesse, J.: Dolomite ladle refractories at inland steels no.1ElectricFurnace shop. Iron and Steelmaker. 12(11), 44–45 (1985)

    CAS  Google Scholar 

  3. Kijac, J., Kovac, P., Steranka, E., et al.: The current status of tundish covering slags in a slab caster plant. Metalurgija. 43(1), 59–62 (2004)

    CAS  Google Scholar 

  4. Zhao-you, C., Shou-xin, T.: Relationship between clean steel and refractories. Refractories. 38(4), 219–225 (2004)

    Google Scholar 

  5. Wei, Y.W., Li, N.: Refractories for clean steelmaking. Am. Ceram. Soc. Bull. 81(5), 32–35 (2002)

    CAS  Google Scholar 

  6. Chengxun, W., Yongjie, L.: Refractories for Secondary Steelmaking Process, vol. 137. Metallurgical Industry Press, Beijing (1996)

    Google Scholar 

  7. Xiang-chong, Z.: Looking ahead—a new generation of high performance refractory ceramics. Refractories. 37(1), 1–10 (2003)

    Google Scholar 

  8. Oda, Y.: Preventives methods for hydration of calcia and dolomite clinker. Taikabutsu. 41(12), 690–700 (1989)

    CAS  Google Scholar 

  9. Chen, M., Ito, S., Yamaguchi, A.: Carbonation of CaO clinkers and improvement of their hydration resistance. Ceram Soc Japan. 110(6), 512–517 (2002)

    Article  CAS  Google Scholar 

  10. Lee, J.K., Choi, H.S., Lee, S.J.: Effect of Fe2O3 additions on the hydration resistance of CaO. J. Ceram. Process. Res. 13(5), 646–650 (2012)

    Google Scholar 

  11. Ghasemi-Kahrizsangi, S., Nemati, A., Shahraki, A., et al.: Densification and properties of Fe2O3 nanoparticles added CaO refractories. Ceram. Int. 42(10), 12270–12275 (2016)

    Article  CAS  Google Scholar 

  12. Ghosh, A., Bhattacharya, T.K., Mukherjee, B., et al.: The effect of CuO addition on the sintering of lime. Ceram. Int. 27(2), 201–204 (2001)

    Article  CAS  Google Scholar 

  13. Ghosh, A., Bhattacharya, T.K., Maiti, S., et al.: Densification and properties of lime with V2O5 additions. Ceram. Int. 30(8), 2117–2120 (2004)

    Article  CAS  Google Scholar 

  14. Chen, G., Li, B., Zhang, H., et al.: On the modification of hydration resistance of CaO with ZrO2 additive. Int. J. Appl. Ceram. Technol. 13(6), 1173–1181 (2016)

    Article  CAS  Google Scholar 

  15. Bhattacharya, T.K., Ghosh, A., Tripathi, H.S., et al.: Solid state sintering of lime in presence of La2O3, and CeO2. Bull. Mater. Sci. 26(7), 703–706 (2003)

    Article  CAS  Google Scholar 

  16. Moorkah, H.I., Abolarin, M.S.: Investigation of the properties of locally available dolomite for refractory applications, Niger. J. Technol. 24(1), 79–86 (2005)

    Google Scholar 

  17. Ghasemi-Kahrizsangi, S., Barati Sedeh, M., Gheisari Dehsheikh, H., et al.: Densification and properties of ZrO2 nanoparticles added magnesia–doloma refractories. Ceram. Int. 2016, S0272884216310744

  18. Qiu, G.-B., Peng, B., et al.: Properties of regenerated MgO–CaO refractory bricks: impurity of iron oxide[J]. Ceram. Int. 42(2), 2933–2940 (2016)

    Article  CAS  Google Scholar 

  19. Othman, A.G.M., El-Maaty, M.A.A., Serry, M.A.: Hydration-resistant lime refractories from Egyptian limestone and ilmenite raw materials. Ceram. Int. 27(7), 801–807 (2001)

    Article  CAS  Google Scholar 

  20. Liu, P.: Foundation of Crystal Defect, pp. 242–243. Science Press, Beijing (2010)

    Google Scholar 

  21. Khlebnikova, Y., Zhukovskaya, A.E., Seliovanova, A.N.: Methods for determining hydration resistance of refractories. J. Refract Ind. Ceram. 48, 2–6 (2007)

    Google Scholar 

  22. Zhang, H., Zhao, H., Zhen, J., Yu, J., Nie, J.: Defect study of MgO–CaO material doped with CeO2. J. Adv. Mater. Sci. Eng. 20, 1–5 (2013)

    Google Scholar 

  23. Han, Z., huizhong, Z., et al.: Defect study of MgO—CaO material doped with CeO2. Functional Materials. 44(16), 2343–2347 (2013)

    Google Scholar 

  24. Kingery, W.D.: Introduction to Ceramics, pp. 353–370. John Wiley and Sons Inc, New York (1960)

    Google Scholar 

  25. Yin, H., Ma, Y., Yan, J.: Effect of MgO coating on the hydration resistance of MgO-CaO clinkers. J Mater Sci Forum. 695, 324–327 (2011)

    Article  CAS  Google Scholar 

  26. Zhilin, Z., Weiming, G., Yang, Y., Shanghua, W.: Effects of sintering temperature and composite additive on microstructure and properties of Al2O3-TiCN ceramics. Mater. Mech.l Eng. 2015(10), 47–51

Download references

Author information

Authors and Affiliations

  1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, China

    Tao Zhang, Yaowu Wei, Junfeng Chen & Nan Li

Authors
  1. Tao Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yaowu Wei
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Junfeng Chen
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Nan Li
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Yaowu Wei.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhang, T., Wei, Y., Chen, J. et al. Effect of Mg(OH)2 and sintering temperature on the hydration resistance of CaO aggregate by thermal decomposition. J Aust Ceram Soc 56, 795–801 (2020). https://doi.org/10.1007/s41779-019-00399-3

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s41779-019-00399-3

Keywords

Search

Navigation