A generation of ultra-high pressure for phase transformation
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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 wordsphase transformation ultra-high dynamic pressure boron nitride
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- 1.M. Araki and Y. Kuroyama,J. Industrial Explosives Soc. of Japan 49, 251 (1988).Google Scholar
- 2.A A. Amsden, H. M. Ruppel and C. W. HirLSALE: A Simplified Arbitrary Lagragian-Eulerian method. LA-8095, UC-32 (1980).Google Scholar
- 3.L. Lee, M. Finger and W. Collins,JWI. Equation of Coefficients for High Explosives, Rep. of Lawrence Livermore Lab., UCID-16186 (1973).Google Scholar
- 4.S, Itoh, S. Kubota, A. Kira, S. Nagana, and M Fujita,J. Japan Explosives Soc. 55, 202 (1994).Google Scholar
- 5.C. L. Mader, et al.,Los Alamos Series on Dynamic Material Properties, University of Calitornia Press (1980).Google Scholar