Abstract
In the production of mineral wool, the melting and crystallization behaviors of slag are the key issues to determine the final quality of mineral wool. In this study, three synthetic ferronickel slags with different B2O3 contents have been prepared, and the effect of B2O3 on the melting ranges of the slags has been investigated by single hot thermocouple technique (SHTT). Meanwhile, the isothermal crystallization characteristics of the samples were studied by high-temperature confocal scanning laser microscope (CSLM). The results showed that the initial and complete melting temperatures decreased with the increase of B2O3 content. Meanwhile, from the time-temperature-transformation diagrams, the crystallization incubation time increased with the increase of B2O3. The crystal morphology formed in the slags was columnar.
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References
Wang DQ, Wang Q, Zhuang SY, Yang J (2018) Evaluation of alkali-activated blast furnace ferronickel slag as a cementitious material: reaction mechanism, engineering properties and leaching behaviors. Constr Build Mater 188:860–873
Xia B, Li R, Zhao X (2018) Constraints and opportunities for the recycling of growing ferronickel slag in China. Resour Conserv Recy 139:15–16
Rahman MA, Sarker PK, Shaikh FU (2017) Soundness and compressive strength of Portland cement blended with ground granulated ferronickel slag. Constr Build Mater 140:194–202
Kang SS, Park K, Kim D (2014) Potential soil contamination in areas where ferronickel slag is used for reclamation work. Materials 7(10):7157–7172
Saha AK, Khan MNN, Sarker PK (2018) Value added utilization of by-product electric furnace ferronickel slag as construction materials: a review. Resour Conserv Recy 134:10–24
Sakkas K, Nomikos P, Sofianos A (2014) Utilisation of FeNi-slag for the production of inorganic polymeric materials for construction or for passive fire protection. Waste Biomass Valori 5(3):403–410
Li J, Liu W, Zhang Y, Yang AM, Zhao K (2015) Research on modifying blast furnace slag as a raw material of slag fiber. Mater Manuf Process 30:374–380
Tang X, Zhang Z, Guo M, Zhang M (2011) Viscosities behavior of CaO-SiO2-MgO-A12O3 slag with low mass ratio of CaO to SiO2, and wide range of A12O3 content. J Iron Steel Res Int 18(2):1–17
Li Y, Dai WB (2018) Modifying hot slag and converting it into value-added materials: a review. J Clean Prod 175:176–189
Xuan WW, Wang HN, Xia DH (2019) In-situ observation of crystallization inside coal slags and influence of crystals on flow behavior. Fuel 251:242–248
Xuan WW, Zhang JS, Xia DH (2018) The influence of MgO on the crystallization characteristics of synthetic coal slags. Fuel 222:523–528
Lu BX, Wang WL, Li J, Zhao H, Huang DY (2013) Effects of basicity and B2O3 on the crystallization and heat transfer behaviors of low fluorine mold flux for casting medium carbon steels. Metall Mater Trans, B 44(2):365–377
Zhou LJ, Wang WL, Lu BX, Wen GH, Yang J (2015) Effect of basicity and B2O3 on viscosity, melting and crystallization behaviors of low fluorine mold fluxes for casting medium carbon steels. Met Mater Int 21(1):126–133
Wang WL, Lyu PS, Zhou LJ, Li H, Zhang TS (2018) High-temperature properties of mold flux observed and measured in situ by single/double hot-thermocouple technique. JOM 70(7):1248–1255
Wang ZJ, Sohn I (2018) Effect of the Al2O3/SiO2 mass ratio on the crystallization behavior of CaO-SiO2-MgO-Al2O3 slags using confocal laser scanning microscopy. Ceram Int 44:19268–19277
Tulyaganov DU, Agathopoulos S, Ventura JM, Karakassides MA, Fabrichnayac O, Ferreira JMF (2006) Synthesis of glass-ceramics in the CaO-MgO-SiO2 system with B2O3, P2O5, Na2O and CaF2 additives. J Eur Ceram Soc 26(8):1463–1471
Konijnendijk WL, Stevels JM (1975) The structure of borate glasses studied by Raman scattering. J Non-Cryst Solids 18(3):307–331
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© 2020 The Minerals, Metals & Materials Society
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Dai, S., Wang, W., Zhou, L., Zhang, T., Yu, J. (2020). Real-Time Imaging of Melting and Crystallization of Synthetic Ferronickel Slags with Varying B2O3 Content. In: TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36296-6_8
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DOI: https://doi.org/10.1007/978-3-030-36296-6_8
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