B1-type and WC-type phase bulk bodies of tantalum nitride prepared by shock and static compressions

T. Mashimo, S. Tashiro, M. Nishida, K. Miyahara, E. Eto

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30 Citations (Scopus)

Abstract

Tantalum nitride (TaN) is a unique nitride which has CoSn-type structure at ambient state among the transition metal nitrides (1:1). We have been performing the shock-and static-high-pressure compression experiments to synthesize the dense-phase tantalum nitrides. The single-phase bulk body of B1-type tantalum nitride with good stoichiornetry was prepared by shock compression. The single-phase bulk bodies of B1-and WC-type tantalum nitrides were also prepared by static compression. The static-compression quenching experiments showed that the B1-type phase was a high-temperature high-pressure phase and the WC-type phase was a low-temperature high-pressure phase. The B1-and WC-type phases bulk bodies had good high-temperature stabilities and much higher hardnesses than the CoSn-type. The shock-compression-synthesized B1-type one showed superconductivity with a comparatively high critical temperature.

Original languageEnglish
Pages (from-to)13-15
Number of pages3
JournalPhysica B: Condensed Matter
Volume239
Issue number1-2
DOIs
Publication statusPublished - Aug 1 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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