Solid State Phase Formation in the Bi2O3-PbO-CaO System |
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| Authors: | Brăileanu A Zaharescu M Crişan D Segal E |
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| Institution: | (1) Institute of Physical Chemistry, Romanian Academy, 202, Spl. Independentei, 77208, Bucharest;(2) Faculty of Chemistry, Department of Physical Chemistry, University of Bucharest, 13 Blv. Republicii, Bucharest, Romania |
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| Abstract: | Following our previous research, this work is dedicated to the study of phase formation in the subsolidus domain of the Bi2O3-PbO-CaO system.
Former investigations performed by DTA/TGA and XRD have pointed out that under non-isothermal conditions only the formation
of binary compounds occurs. Under such conditions these compounds could be non-equilibrium phases.
In order to establish the conditions of formation of equilibrium phases, a study of the Bi2O3-PbO-CaO system, in isothermal conditions, was carried out. The results obtained in isothermal conditions have confirmed the
presence of Bi2O3-rich solid solutions and Ca2PbO4 as main equilibrium phases. An attempt to represent the phase relations of the mentioned system at 700°C should be equally
mentioned.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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| Keywords: | Bi2O3-PbO-CaO system DTA solid-state reactions X-ray diffraction |
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