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Metals and Materials

, Volume 4, Issue 4, pp 808–811 | Cite as

A generation of ultra-high pressure for phase transformation

  • Yutaka Kuroyama
  • Shigeru Itoh
  • Zhi-yue Liu
  • Hiroshi Kitaki
  • Shiro Nagano
  • Kenji Itoh
Article
  • 16 Downloads

Abstract

A new method was devised to generate an ultra-high dynamic pressure for materials synthesis and phase transformation by using the cylindrical explosion. Unlike the ordinary cylindrical method, the specimen is not directly packed into the metal tube but sandwiched between the metal films that are rolled into a cylindrical geometry. For distinguishable point of view, we term it as ’rolled-film’ method. The numerical simulation demonstrates that this method can produce higher shock pressure than the ordinary cylindrical method. The practical experiment for boron nitride phase transformation also indicates thal a higher shock pressure is able to be achievable.

Key words

phase transformation ultra-high dynamic pressure boron nitride 

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Copyright information

© Springer 1998

Authors and Affiliations

  • Yutaka Kuroyama
    • 1
  • Shigeru Itoh
    • 2
  • Zhi-yue Liu
    • 2
  • Hiroshi Kitaki
    • 2
  • Shiro Nagano
    • 2
  • Kenji Itoh
    • 3
  1. 1.Hokkaido NOF CorporationBibaiJapan
  2. 2.Department of Mechanical EngineeringKumamoto UniversityKumamotoJapan
  3. 3.NOF Corporation, Aichi WorksTaketoyo PlantAichiJapan

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