EQUILIBRIUM OF Ba-O, Ba-S and Ba-P IN MOLTEN Fe

Acta Metall Sin

1993, Vol. 29

Issue (2): 64-69 DOI:

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EQUILIBRIUM OF Ba-O, Ba-S and Ba-P IN MOLTEN Fe

WANG Jiansheng;HAN Qiyong;WEI Shoukun;SONG Bo University of Science and Technology Beijing

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WANG Jiansheng;HAN Qiyong;WEI Shoukun;SONG Bo University of Science and Technology Beijing. EQUILIBRIUM OF Ba-O, Ba-S and Ba-P IN MOLTEN Fe. Acta Metall Sin, 1993, 29(2): 64-69.

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Abstract Study was made of the equilibrium of Ba-O, Ba-S and Ba-P in molten Fe byusing of Ba vapour-liquid Fe system sealed in Mo chamber. Their thermodynamicparameters determined are: △G_(BaO)~o= 188500+38.3T J/mol, e_O~(Ba)=624-1.25×10~6 / T IgK_(BaO)=-2.00-9849 / T △G_(BaS)~o= 469100-111T J/mol, e_S~(Ba)=826-1.64×10~6 / T IgK_(BaS)=5.80-24516 / TAt 1873K, K_(Ba_3P_2)=7.76×10~(-18), e_(Ba)~P=-0.95, AG_(Ba_3P_2)~0=613200 J / mol

Key words: Ba O S P liquid iron thermodynamic parameters

Received: 18 February 1993

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