An upgrade recycling from Mg alloy chips toward superconducting MgB 2 via powder processing

Makoto Nanko, Daisuke Maruoka, Hitoshi Ozawa, Shigeharu Kamado, Hiroya Abe, Akira Kondo, Makio Naito

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A recycling process of Mg alloy chips to obtain superconducting MgB 2 is proposed. In the present process, mechanical milling was used to mix and grind AZ31 chips and boron powder. Fine AZ31/boron powder mixture can be fabricated via a mechanical milling process. Mechanical milling can reduce the process time to synthesize MgB2 powder. An AZ31/boron mixture via mechanical milling can be reacted completely to MgB2 by heating at 700 °C for 3 h. Sintered MgB2 bodies produced by a pulsed electric current sintering technique showed approximately 30 K as the superconducting critical temperature.

Original languageEnglish
Pages (from-to)840-843
Number of pages4
JournalJournal of Ceramic Processing Research
Volume10
Issue number6
Publication statusPublished - 2009 Dec 1
Externally publishedYes

Keywords

  • AZ31
  • Magnesium alloys
  • Mgb
  • Powder processing
  • Recycle

ASJC Scopus subject areas

  • Ceramics and Composites

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