溶融珪酸鉛およびホウ酸鉛の粘性係数

• 江島 辰彦

  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

• Viscosity of Liquid Lead Silicate and Lead Borate
• ヨウユウ ケイサン ナマリ オヨビ ホウサン ナマリ ノ ネンセイ ケイスウ

抄録

Viscosity coefficients of liquid lead silicate and lead borate have been measured in the temperature range from 800° to 1200°C by means of the counterbalanced sphere method. The results obtained are summarized as follows:<BR>\oindent(1) PbO-SiO₂ system<BR>A linear relation is observed between log viscosity and 1⁄T² isocomposition rather than the Arrhenius type plots between log viscosity and 1⁄T. The activation energy for viscous flow decreases with increasing content of PbO.<BR>\oindent(2) PbO-B₂O₃ system<BR>A linear relation is observed between log viscosity and 1⁄T² isocomposition as in the case of the PbO-SiO₂ system. The activation energy of viscous flow slowly decreases with increasing content of PbO up to about 33 mole%PbO and then more rapidly with increasing concentration.<BR>The density of liquid lead borate decreases with increasing temperature by a linear relation. At about 33 mole%PbO, a minimum is found in the plots of molar volume and composition.

収録刊行物

• 日本金属学会誌

  日本金属学会誌 31 (2), 120-125, 1967

  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: 1390001206481693568
• NII論文ID: 130007333309
• NII論文ID: 40018256128
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet1952.31.2_120
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL書誌ID: 8371442
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8371442
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/31/2/31_2_120/_pdf
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