Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Calculation of ionic composition and activities of components in the CaO-Al2O3 melts by the polymeric theory
AU - Zalomov, N. I.
AU - Boronenkov, Vladislav N.
AU - Shalimov, M. P.
PY - 1992
Y1 - 1992
N2 - The procedure based on the polymer theory of oxide melt structure has been proposed to calculate the ion composition and activities of components in CaO-Al2O3 melts. Different coordination of Al in the form of Al3+, AlOPLU and complex ions AlxOyz- is taken into account. Estimated data of the Al2O3 and CaO ion compositions and activities at 1773 K for 5 structural models. For one model, estimated activities are in close agreement with experimental values. Ion compositions for CaO-Al2O3 melts, obtained by the model equations, are listed. It is shown that higher mole fraction of CaO in the melt markedly decreases the Al3+ content. Most alumo-oxygen anions have the form of Al45- surrounded by Ca2+ cations.
AB - The procedure based on the polymer theory of oxide melt structure has been proposed to calculate the ion composition and activities of components in CaO-Al2O3 melts. Different coordination of Al in the form of Al3+, AlOPLU and complex ions AlxOyz- is taken into account. Estimated data of the Al2O3 and CaO ion compositions and activities at 1773 K for 5 structural models. For one model, estimated activities are in close agreement with experimental values. Ion compositions for CaO-Al2O3 melts, obtained by the model equations, are listed. It is shown that higher mole fraction of CaO in the melt markedly decreases the Al3+ content. Most alumo-oxygen anions have the form of Al45- surrounded by Ca2+ cations.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=0026735362
M3 - Статья
SP - 87
EP - 90
JO - Rasplavy
JF - Rasplavy
SN - 0235-0106
IS - 1
ER -
ID: 54956617