A thermochemical model description of CaO-SiO2-Al2O3 silicate system

A thermochemical model based on the ion and molecule coexistence theory (IMCT) was developed to calculate thermodynamic data in the CaO-SiO 2 -Al 2 O 3 slag system, considering the influential role of oxide activities on the thermodynamic properties of slags. Using this model, iso-activity contours...

Full description

Saved in:
Bibliographic Details
Published in:China foundry 2023-11, Vol.20 (6), p.480-490
Main Authors: Wen, Qiu-lin, Shen, Feng-man, Zheng, Hai-yan, Gao, Yun-bao, Wang, Yu, Lou, Yan-chun
Format: Article
Language:English
Subjects:
Engineering
Machines
Manufacturing
Materials Engineering
Metallic Materials
Processes
Research & Development
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A thermochemical model based on the ion and molecule coexistence theory (IMCT) was developed to calculate thermodynamic data in the CaO-SiO 2 -Al 2 O 3 slag system, considering the influential role of oxide activities on the thermodynamic properties of slags. Using this model, iso-activity contours were obtained for oxide components CaO, SiO 2 and Al 2 O 3 in this system at temperatures of 1,873 K and 1,773 K. When compared with the IMCT model, it is found that the predicted activities of oxide components in the CaO-SiO 2 -Al 2 O 3 system using the model developed in this study better matches experimental data from literature in terms of both trend and numerical value. Therefore, the model developed in this study can serve as a robust modeling tool for metallurgical processes, and the thermodynamic data predicted by this new model can be used to improve the metallurgical technology.
ISSN:1672-6421
2365-9459
DOI:10.1007/s41230-023-3044-z