溶融PbO-SiO<SUB>2</SUB>-Li<SUB>2</SUB>O系の表面張力，密度および粘性係数

• 江島 辰彦

  東北大学工学部金属工学科

• 日野 光久

  東北大学工学部金属工学科

• 亀田 満雄

  東北大学工学部金属工学科

書誌事項

タイトル別名

• Surface Tension, Density and Viscosity of PbO-SiO<SUB>2</SUB>-Li<SUB>2</SUB>O Ternary Melts
• 溶融PbO-SiO2-Li2O系の表面張力,密度および粘性係数
• ヨウユウ PbO-SiO2-Li2Oケイ ノ ヒョウメン チョウリョク , ミツド オヨビ ネンセイ ケイスウ

抄録

The surface tension, density and viscosity coefficient of PbO-SiO₂-Li₂O ternary melts have been measured in the temperature range 800° to 1200°C by the use of the dipping cylinder method, the Archimedean method and the counter-sphere method, respectively.<BR>In the (PbO·SiO₂)-Li₂O pseudo binary system, the surface tension decreases with the addition of Li₂O. The characteristic phenomenon may be explained in terms of the production of a homopolar Pb-O bond in the melt with the addition of Li₂O.<BR>The negative deviation of molar volume from the additivity and the decrement of viscosity coefficient with the addition of Li₂O indicate the bond breaking of SiO₂ network and the production of descrete anions.<BR>Logarithm of viscosity, logη, shows a linear relation with 1⁄T² rather than with 1⁄T. The apparent activation energy of viscous flow decreases with increasing Li₂O content for the (PbO·SiO₂)-Li₂O and (PbO·SiO₂)-(Li₂O·SiO₂) systems.

収録刊行物

• 日本金属学会誌

  日本金属学会誌 34 (5), 546-550, 1970

  公益社団法人 日本金属学会

キーワード

• Materials Chemistry
• Metals and Alloys
• Mechanics of Materials
• Condensed Matter Physics

詳細情報

• CRID: 1390001206483797504
• NII論文ID: 40018256985
• NII論文ID: 130007336127
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet1952.34.5_546
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL書誌ID: 8372299
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8372299
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/34/5/34_5_546/_pdf
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