Plasma arc evaporation from molten silicate glasses

Koji Matsumaru, Hiroyuki Fukuyama, Masahiro Susa, Kazuhiro Nagata

研究成果: Article査読

抄録

Samples of 40 mass%SiO2-40CaO-20Al2O3 (Glass) and 36mass%SiO2-36CaO-18Al2O3-10Fe 2O3(Fe-Glass) were melted by argon plasma arc, with iron rods used for arc ignition. A direct current transferred type plasma generator was used with an output power of 6 kW. During arc melting, the iron rod located in the centre of the molten glass was melted. During Glass melting, the oxygen partial pressure was kept constant in the chamber. On the other hand, during Fe-Glass melting, the oxygen partial pressure steeply increased in the initial stage and then gradually decreased. The chemical state of iron ion in Fe-Glass was changed from Fe3+ to Fe2+ rapidly. The evaporation rates from Glass and Fe-Glass were 3.8×10-7 kg/s and 2.0×10-7 kg/s, respectively. It has been concluded that the rate of evaporation from the molten glasses is affected by the oxygen partial pressure which is determined by the state of the iron oxides in the samples during the melting.

本文言語English
ページ(範囲)21-27
ページ数7
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
63
1
DOI
出版ステータスPublished - 1999
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

フィンガープリント

「Plasma arc evaporation from molten silicate glasses」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル