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INTERMETALLIC COMPOUND SUPERCONDUCTORS AND ALLOY SUPERCONDUCTORS, AND METHODS OF MAKING THEM achieved

Foreign code F110004276
File No. A061-16CA
Posted date Jul 13, 2011
Country Canada
Application number 2401968
Gazette No. 2401968
Gazette No. 2401968
Date of filing Jul 24, 2001
Gazette Date Jul 18, 2002
Gazette Date Sep 23, 2008
Priority data
  • P2001-001948 (Jan 9, 2001) JP
Title INTERMETALLIC COMPOUND SUPERCONDUCTORS AND ALLOY SUPERCONDUCTORS, AND METHODS OF MAKING THEM achieved
Abstract

There are provided an intermetallic compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and boron (B) and has a chemical composition expressed by formula: Mg1B2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (T c) of 39 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (T c) of 39 K.

In the method of manufacture, a Mg containing feedstock powder and a B containing feedstock powder are mixed together to form a mixture thereof which is, e.g., hot pressed to produce a semiconductor product.

  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY CORPORATION,
  • AKIMITSU, JUN
  • Inventor
  • AKIMITSU, JUN,
  • ZENITANI, YUJI,
  • NAKAGAWA, NORIMASA,
  • NAGAMATSU, JUN,
  • MURANAKA, TAKAHIRO
IPC(International Patent Classification)
Reference ( R and D project ) CREST Phenomena of Extreme Conditions AREA
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