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Fabrication of Porous Copper with Directional Pores by Continuous Casting Technique Through Thermal Decomposition of Hydride

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Abstract

Lotus-type porous copper with aligned long cylindrical pores was fabricated by continuous casting technique through thermal decomposition method (TDM) in an argon atmosphere of 0.1 MPa. A pellet of titanium hydride was supplied into molten copper with adjusting the time interval to maintain the constant concentration of hydrogen to be dissolved in the melt, when the transfer velocity of the unidirectional solidification is changed. Long lotus-type porous copper slabs were fabricated with constant solidification velocity. The effect of the transfer velocity on the porosity and pore size was investigated. The average pore diameter was independent of the transfer velocity, but the porosity is slightly dependent on the velocity. It is apparent that the continuous casting technique can be applicable for production of lotus metals through TDM.

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Acknowledgments

The present work was supported by a Grant-in-Aid for Scientific Research (Category A) from the Ministry of Education, Culture, Sports, Science and Technology of Japan (Grant No. 25249107). The authors express their gratitude to Dr. Y.H. Song, Osaka University, for the experimental assistance.

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Author notes

  1. Takuya Ide (General Manager)

    Present address: Lotus Alloy Co., Ltd., Umeda 1-1-3-267, Kitaku, Osaka, 530-0001, Japan

  2. Akihiro Tsunemi (Formerly Graduate Student, Researcher)

    Present address: DMG Mori Seiki Co., Ltd., Iga, Mie, 519-1414, Japan

Authors and Affiliations

  1. The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka, 567-0047, Japan

    Takuya Ide (General Manager), Akihiro Tsunemi (Formerly Graduate Student, Researcher) & Hideo Nakajima (Director)

  2. The Wakasa Wan Energy Research Center, Tsuruga, Fukui, 914-0192, Japan

    Hideo Nakajima (Director)

Authors
  1. Takuya Ide
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  2. Akihiro Tsunemi
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  3. Hideo Nakajima
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Corresponding author

Correspondence to Hideo Nakajima.

Additional information

Manuscript submitted October 20, 2013.

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Ide, T., Tsunemi, A. & Nakajima, H. Fabrication of Porous Copper with Directional Pores by Continuous Casting Technique Through Thermal Decomposition of Hydride. Metall Mater Trans B 45, 1418–1424 (2014). https://doi.org/10.1007/s11663-014-0075-2

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  • DOI: https://doi.org/10.1007/s11663-014-0075-2

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