Phase Change of Si-Al Alloy Prepared by Carbon Reduction Coal Fly Ash

DOI

10.2991/ifeesm-17.2018.161How to use a DOI?

Keywords

Si-Al alloy; HSC chemistry; coal fly ash; reduction;carbon

Abstract

The thermodynamic data of atmospheric pressure were calculated by using HSC chemistry 6.0 software, and the thermodynamic conditions were discussed theoretically.It indicated that the simultaneous reduction of alumina and silicon oxide by carbon at high temperature was beneficial to reduce SiC and Al4C3 in the products.It is feasible to prepare Si-Al alloy by carbon reduction coal fly ash from thermodynamic analysis.The thermodynamic equilibrium components of carbon reduction coal fly ash were simulated by using Equilibrium Composition module, and it was considered that most of the reactions occurred during the reaction were the coupling of two or more reactions, rather than one by one.The preparation of Si-Al alloy by carbon reduction coal fly ash is viable. In order to improve the yield of silicon and aluminum, the method of heating rapidly can be used to avoid the formation of carbide, thereby reducing the content of Al2O and SiO in the equilibrium composition.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhiling Ba
AU  - Bingke Qin
AU  - Minglei Lian
AU  - Yingju Miao
PY  - 2018/02
DA  - 2018/02
TI  - Phase Change of Si-Al Alloy Prepared by Carbon Reduction Coal Fly Ash
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 859
EP  - 862
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.161
DO  - 10.2991/ifeesm-17.2018.161
ID  - Ba2018/02
ER  -