Liquidus Surface and Isothermal Section Diagram at 973K in BaO-Fe2O3-(0-50mol%)B2O3 Pseudo-ternary System

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  • Liquidus Surface and Isothermal Section Diagram at 973 K in BaO–Fe<SUB>2</SUB>O<SUB>3</SUB>–(0–50 mol%)B<SUB>2</SUB>O<SUB>3</SUB> Pseudo-ternary System
  • Liquidus Surface and Isothermal Section
  • Liquidus Surface and Isothermal Section Diagram at 973 K in BaO&ndash;Fe<SUB>2</SUB>O<SUB>3</SUB>&ndash;(0&ndash;50 mol%)B<SUB>2</SUB>O<SUB>3</SUB> Pseudo-ternary System

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説明

The isothermal section at 973 K and the liquidus surfaces of the phase diagram of the pseudo-ternary BaO–Fe2O3–B2O3 system were determined in a composition range of less than 50 mol% B2O3 by thermal analyses and X-ray diffraction. The liquidus surface which is in equilibrium with Fe3O4 spreads over a wide composition range and that in equilibrium with BaO·6Fe2O3 extends long and narrow to BaO·B2O3. The pseudo-ternary BaO–Fe2O3–B2O3 compound does not exist in the composition range investigated. The ternary eutectic reaction is L→BaO·6Fe2O3+BaO·B2O3+3BaO·B2O3, occurring at 1033 K at the composition 48 mol%BaO-19 mol%Fe2O3-33 mol%B2O3.

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