Liquid Diffusion Measurement of Pb1- xSnxTe Using TR-IA-4 Sounding Rocket

• UCHIDA Misako

  Materials Technology Dept., Research Inst., Ishikawajima-Harima Heavy Industries Co., Ltd.

• KANEKO Minoru

  Space Department, Ishikawajima Jet Service Co., Ltd.

• ITAMI Toshio

  Department of Chemistry, Faculty of Science, Hokkaido University

• NAKAMURA Tomihisa

  National Space Development Agency of Japan

• MORITA Tomoji S.

  Japan Space Utilization Promotion Center

書誌事項

タイトル別名

• Liquid Diffusion Measurement of Pb1-xSn

抄録

In order to obtain the -true- diffusion coefficient of liquid Pb1- xSnxTe, a microgravity ex­periment was conducted using a TR-IA-4 rocket launched on August 25, 1995. A diffusion couple composed of Pb0.8Sn0.2Te and Pb0.7Sn0.3Te cylinders with 2 mm in diameter s kept at )277 K for 231 seconds and quenched by injecting helium gas. All processes were realized under microgravity. Cooling was controlled so as to avoid axial directional solidification, which might spoil the diffusion experiments due to a large degree of segregation. The diffu­ sion during the heating and cooling periods was included in the analysis, based on an analyti­cal solution of Fick's second law with an assumption of D=A(T/ Tm)n (A and n are constants and Tm is the melting point). A diffusion coefficient of 7.9 x 10- 9 m2s- 1 at 1277 K was obtained from the microgravity experiment. Convection in the liquid diffusion couple spoiled the diffusion experiment in the 1 g reference experiment, however.

収録刊行物

• 日本マイクログラビティ応用学会誌

  日本マイクログラビティ応用学会誌 14 (1), 42-, 1997-01-31

  日本マイクログラビティ応用学会

詳細情報

• CRID: 1390005506400305280
• NII論文ID: 130007971679
• NII論文ID: 10002845079
• NII書誌ID: AN10537663
• DOI: 10.15011/jasma.14.1.42
• NDL書誌ID: 4138632
• ISSN: 09153616
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4138632
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可