Phase equilibria in the Bi2O3-BaB2O4-B2O3 system in the subsolidus region |
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| Authors: | A V Egorysheva Yu F Kargin |
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| Institution: | (1) Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia |
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| Abstract: | The phase equilibria in the concentration triangle Bi2O3-BaB2O4-B2O3 of the BaO-Bi2O3-B2O3 system have been investigated by X-ray powder diffraction and DTA. Barium bismuth borates of the composition BaBi2B4O10 and BaBiB11O19 have been found to exist. These borates melt at 730 and 807°C, respectively. The quasi-binary sections have been determined. It has been shown that the isothermal section of the Bi2O3-BaB2O4-B2O3 in the subsolidus region at 600°C is characterized by 13 triangles of coexisting phases. |
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