科研之友
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摘要
We report a synchrotron energy-dispersive X-ray diffraction study of the novel high explosive 1,1-diamino-2,2-dinitroethylene at high pressures and high temperatures. Pressure was generated using a Paris-Edinburgh cell to employ larger sample volumes. High temperatures were created using a resistive graphite cylinder surrounding the sample. The PT phase diagram was explored in the 3.3GPa pressure range and in the 400 degrees C temperature range. We believe that the sample commenced in the -phase and then ended up in an amorphous phase when the temperature increased beyond 280 degrees C near 2GPa, which we believe to be the -phase. Further pressure and temperature cycling suggests that the sample transformed reversibly into and out of the amorphous phase near the phase line.
- 出版日期2011
