Gas Permeability of SiC/SiC Composite as Blanket Material of Fusion Reactor.

• HASHIBA Masao

  Department of Nuclear Engineering, Hokkaido University

• JINUSHI Takahiro

  Department of Nuclear Engineering, Hokkaido University

• YAMAUCHI Yuji

  Department of Nuclear Engineering, Hokkaido University

• HIROHATA Yuko

  Department of Nuclear Engineering, Hokkaido University

• HINO Tomoaki

  Department of Nuclear Engineering, Hokkaido University

• KATOH Yutai

  Institute of Advanced Energy, Kyoto University

• KOHYAMA Akira

  Institute of Advanced Energy, Kyoto University

Bibliographic Information

Other Title

• 核融合炉ブランケット用ＳｉＣ／ＳｉＣ複合材のガス透過特性
• カク ユウゴウロ ブランケットヨウ SiC SiC フクゴウザイ ノ ガス トウカ トクセイ

Abstract

Gas permeability of SiC/SiC composite materials, which is one of the most important properties in application of SiC/ SiC composite for first wall and blanket of fusion reactors, was measured by using a vacuum apparatus. The cylindrical SiC/SiC composite specimens were prepared by three different processes. The measurement on permeability for three materials was carried out with helium gas pressure ranging from 10²to 10⁵ Pa at room temperature.<BR>The pressure in bottom chamber down stream of specimens increased with the helium gas pressure within the applied pressure range. The helium gas flow through the material is regarded as molecular flow. The material made by PIP method showed the highest permeability. The lowest permeability was observed in the one made by PIP followed by RS method. The material, SA-TyrannoHex^TM made by hot pressing was in the second position. The difference of the permeability can be related with the macroscopic structure represented by pores and cracks.

Journal

• Shinku

  Shinku 45 (3), 145-148, 2002

  The Vacuum Society of Japan

Keywords

• Electrical and Electronic Engineering
• Surfaces, Coatings and Films
• Condensed Matter Physics

Details

• CRID: 1390282679041440256
• NII Article ID: 10008202826
• NII Book ID: AN00119871
• DOI: 10.3131/jvsj.45.145
• ISSN: 18809413
• ISSN: 05598516
• NDL BIB ID: 6144133
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6144133
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed