Liquidus Surfaces and Isothermal Section at 973K of the BaO-ZnO-B2O3 Pseudo-Ternary System

DOI Web Site Web Site 参考文献16件
  • Sato Hiroshi
    Faculty of Education and Human Science, University of Yamanashi

書誌事項

タイトル別名
  • Liquidus Surfaces and Isothermal Section at 973 K of the BaO-ZnO-B<SUB>2</SUB>O<SUB>3</SUB> Pseudo-Ternary System

この論文をさがす

説明

The liquidus surfaces and the isothermal section at 973 K of the pseudo-ternary BaO-ZnO-B2O3 system were determined using the thermal analysis and X-ray diffraction. The liquidus surface in equilibrium with ZnO spreads over a wide composition range and that in equilibrium with 5ZnO·2B2O3 extends long and narrow toward BaO·B2O3. The slope of the liquidus surface in equilibrium with ZnO is steep in the region of less than 20 mol%B2O3 but gentle when the B2O3 content exceeds 20 mol%. The liquidus surface in equilibrium with 3BaO·B2O3 widely extends and its slope is gentle in the region of less than 30 mol%B2O3 but steep when the B2O3 content exceeds 30 mol%. Pseudo-ternary BaO-ZnO-B2O3 compounds were not found in the composition range investigated. The ternary eutectic reactions are as follows: L→3BaO·B2O3+BaO·B2O3+ZnO, occurring at 1033 K at the composition 46.5 mol%BaO-14.5 mol%ZnO-39.0 mol%B2O3, L→BaO·B2O3+ZnO·B2O3+5ZnO·2B2O3, occurring at 1038 K at the composition 34 mol%BaO-21 mol%ZnO-45 mol%B2O, L→BaO·2B2O3+BaO·4B2O3+ZnO·B2O3, occurring at 1008 K at the composition 19 mol%BaO-17 mol%ZnO-64 mol%B2O3.

収録刊行物

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 47 (12), 2910-2917, 2006

    公益社団法人 日本金属学会

参考文献 (16)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ