Evaporation from synthetic incinerator ashes melted by plasma arc

K. Matsumaru, H. Fukuyama, M. Susa, K. Nagata

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Synthetic incinerator ashes of 40 mass %SiO2-40CaO-20Al2O3 (named Glass) and 36 mass %SiO2-36CaO-18Al2O3-10Fe2O 3 (named 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 was melted and located in the centre of the molten ash. The temperature at the boundary between the iron and ash melts was 2200 K and that at the edge of the ash 1870 K. X-Ray diffraction showed that the deposit vaporised from Glass was composed of Fe, FeSi and amorphous SiO2. The evaporation rates from Glass and Fe-Glass were 3.8 × 10-4 g/s and 1.4 × 10-4 g/s, respectively. It has been concluded that the rate of evaporation from the molten ash is affected by the vaporisation reaction which determines the oxygen partial pressure in the whole system.

本文言語English
ページ(範囲)105-110
ページ数6
ジャーナルThin Solid Films
316
1-2
DOI
出版ステータスPublished - 1998 3 21
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 表面および界面
  • 表面、皮膜および薄膜
  • 金属および合金
  • 材料化学

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