Phase simulation and experiment of anorthite-diopside glass-ceramics based on stainless steel slag containing chromium

Guo Yuliang; Jin Huixin; Xiao Yuandan; Lei Ershuai; Wang Zhengxing

doi:10.7513/j.issn.1004-7638.2022.04.015

Volume 43 Issue 4

Sep. 2022

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Guo Yuliang, Jin Huixin, Xiao Yuandan, Lei Ershuai, Wang Zhengxing. Phase simulation and experiment of anorthite-diopside glass-ceramics based on stainless steel slag containing chromium[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 94-99. doi: 10.7513/j.issn.1004-7638.2022.04.015

Citation:

Guo Yuliang, Jin Huixin, Xiao Yuandan, Lei Ershuai, Wang Zhengxing. Phase simulation and experiment of anorthite-diopside glass-ceramics based on stainless steel slag containing chromium[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 94-99. doi: 10.7513/j.issn.1004-7638.2022.04.015

Citation:

Guo Yuliang, Jin Huixin, Xiao Yuandan, Lei Ershuai, Wang Zhengxing. Phase simulation and experiment of anorthite-diopside glass-ceramics based on stainless steel slag containing chromium[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 94-99. doi: 10.7513/j.issn.1004-7638.2022.04.015

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Phase simulation and experiment of anorthite-diopside glass-ceramics based on stainless steel slag containing chromium

doi: 10.7513/j.issn.1004-7638.2022.04.015

School of Materials and Metallurgy, Guizhou University, Guiyang 550025, Guizhou,China

Received Date: 2022-02-09
Publish Date: 2022-09-14

Abstract

Abstract

Chromium-containing stainless steel slag will lead to the leaching of chromium and environment problems. Glass-ceramics possess excellent chromium fixation and physical properties. In order to explore the occurrence law of chromium in anorthite-diopside system, the phase equilibrium of anorthite-diopside glass ceramics was calculated by using thermodynamic software FactSage 7.2, and the sample were prepared by using chromium-containing stainless steel slag. The effects of flux and chromium content on the crystallization and physical properties of the system glass ceramics were studied. The samples were prepared by one-step method with simultaneous nucleation and crystallization. The results show that in the simulation calculation, chromium is first enriched in the spinel phase, and the excess chromium appears in the system in the form of Cr₂O₃. In the corresponding experimental exploration, when the chromium content reaches 5%, the chromium-containing phase in the system is still only spinel phase, which makes the material have better chromium fixation properties. The flux endows glass-ceramics with higher hardness. Chromium is detected in anorthite-diopside system in toxic leaching experiment. The experiment provides a theoretical basis for the preparation of glass-ceramics from chromium-containing solid waste.
- stainless steel slag,
- glass-ceramics,
- phase calculation,
- anorthite-diopside,
- crystallization behavior

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References(16)

References

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