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Standard molar Gibbs energy of formation of Pb5Bi8O17 and PbBi12O19 and phase diagram of the Pb-Bi-O system

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Title Standard molar Gibbs energy of formation of Pb5Bi8O17 and PbBi12O19 and phase diagram of the Pb-Bi-O system
 
Creator GANESAN, R
GNANASEKARAN, T
SRINIVASA, RS
 
Subject wide temperature-range
bismuth-lead-oxide
thermal-stability
emf-measurements
liquid lead
oxygen
phi-bi8pb5o17
diffraction
conductivity
bi8pb5o17
 
Description Equilibrium phase fields of the ternary Pb-Bi-O system were established by long-term equilibration in the temperature range 660-840 K. Using these results, the partial phase diagram of the ternary system has been constructed. The standard molar Gibbs energy of formation of the ternary oxides, (Pb5Bi8O17) and (PbBi12O19), was determined by measuring the equilibrium oxygen partial pressures over the relevant phase fields by static manometry in conjunction with a solid oxide electrolyte-based emf cell. Further, the standard molar Gibbs energy of formation of (Pb3O4) was also measured by the manometric method. The oxide that coexists with the Pb-Bi eutectic alloy (LBE) has been experimentally confirmed as [beta-PbO](ss). Using the thermochemical data measured, the compositions of Pb-Bi alloys that coexist with [beta-PbO](ss) and ternary oxides were derived and reported. (c) 2008
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-26T18:53:43Z
2011-12-26T12:55:37Z
2011-12-27T05:41:38Z
2011-07-26T18:53:43Z
2011-12-26T12:55:37Z
2011-12-27T05:41:38Z
2008
 
Type Article
 
Identifier JOURNAL OF NUCLEAR MATERIALS, 375(2), 229-242
0022-3115
http://dx.doi.org/10.1016/j.jnucmat.2008.01.003
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6996
http://hdl.handle.net/10054/6996
 
Language en