Solidification of Sn-Pb Eutectic System Alloy in Sounding Rocket TR-IA-4

• MOTEGI Tetsuichi

  Chiba Institute of Technology

• HIRAI Jun-ichi

  Chiba Institute of Technology

• TANJI Akira

  Ishikawajima Harima Heavy Industry Co.

• TAKAMI Masakazu

  Ishikawajima Harima Heavy Industry Co.

• KANEKO Minoru

  lshikawajima Jet Service Co.

• AOKI Masanori

  lshikawajima Jet Service Co.

• ANZAWA Shin-ichi

  Ishikawajima Harima Heavy Industry Co.

• ANDOU Hideaki

  Ishikawajima Harima Heavy Industry Co.

• TAKAHASHI Hiroshi

  Ishikawajima Harima Heavy Industry Co.

• TATEIWA Natsumi

  Ishikawajima Harima Heavy Industry Co.

• MORITA Tomoji S.

  Japan Space Utilization Promotion Center

• KOYAMA Masato

  Japan Space Utilization Promotion Center

• SUZUKI Takahiro

  Ishikawajima Harima Heavy Industry Co.

• SHIMIZU Jun-ichiro

  National Space Development Agency of Japan

• YODA Shin-ichi

  National Space Development Agency of Japan

• NAKAMURA Tomihisa

  National Space Development Agency of Japan

• ADACHI Akira

  National Space Development Agency of Japan

• SAMEJIMA Hiroto

  National Space Development Agency of Japan

• ODA Hirohisa

  National Space Development Agency of Japan

Bibliographic Information

Other Title

• Solidification of Sn Pb Eutectic System

Abstract

The solidification mechanisms of three different compositions of Sn-Pb eutectic system alloys near and at the eutectic point were examined in space using sounding rocket TR-IA-4 on August 25, 1995. Samples were melted and solidified in an isothermal furnace. The samples were 10 mm in diameter and 10 mm in length. Three samples were melted before launch and solidified under microgravity conditions to examine whether gravitational segregation oc­cured. The other three were melted and solidified under microgravity conditions. The primary crystals distributed themselves evenly throughout the samples during flight so that homogeneously solidified structures were obtained. The solidification mechanisms of these alloys in space are considered. The results are applied to confirm the formation mechanisms of gravity segregation. It is concluded that segregation is caused by the movement of primary crystals in the liquid eutectic due to their density differences.

Journal

• Journal of The Japan Society of Microgravity Application

  Journal of The Japan Society of Microgravity Application 14 (1), 48-, 1997-01-31

  The Japan Society of Microgravity Application

Details

• CRID: 1390568456353727616
• NII Article ID: 10002845086
• NII Book ID: AN10537663
• DOI: 10.15011/jasma.14.1.48
• NDL BIB ID: 4138633
• ISSN: 09153616
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4138633
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed