Radiation induced surface activity phenomenon (1st report: Surface wettability on metal oxides)

Yasuyuki Imai, Tatsuya Koga, Tomoji Takamasa, Koji Okamoto, Susumu Uematsu

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

Improving the limit of boiling heat transfer or critical heat flux requires that the cooling liquid can contact the heating surface, or a high-wettability, highly hydrophilic heating surface, even if a vapor bubble layer is generated on the surface. We investigated surface wettability using metal oxides irradiated by gamma rays in room condition. Contact angle, an indicator of macroscopic wettability, was measured by image processing of the images obtained by a CCD video camera. The results showed that the surface wettability on oxide metal pieces of titanium, zircalloy No. 4, SUS-304 and copper improved significantly by Radiation Induced Surface Activity (RISA) phenomenon. Highly hydrophilic conditions on the test pieces were achieved after 500 kGy irradiation of 60Co gamma ray.

本文言語English
ホスト出版物のタイトルInternational Conference on Nuclear Engineering, Proceedings, ICONE
出版社American Society of Mechanical Engineers(ASME)
ページ979-982
ページ数4
ISBN(印刷版)9784888982566
DOI
出版ステータスPublished - 2002
外部発表はい
イベント10th International Conference on Nuclear Engineering (ICONE 10) - Arlington, VA, United States
継続期間: 2002 4 142002 4 18

出版物シリーズ

名前International Conference on Nuclear Engineering, Proceedings, ICONE
4

Conference

Conference10th International Conference on Nuclear Engineering (ICONE 10)
CountryUnited States
CityArlington, VA
Period02/4/1402/4/18

ASJC Scopus subject areas

  • Nuclear Energy and Engineering

フィンガープリント 「Radiation induced surface activity phenomenon (1st report: Surface wettability on metal oxides)」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