skip to main content

Title: A high pressure, high temperature study of 1,1-diamino-2,2-dinitro ethylene

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 3.3 GPa pressure range and in the {approx} 400 C temperature range. We believe that the sample commenced in the {alpha}-phase and then ended up in an amorphous phase when the temperature increased beyond 280 C near 2 GPa, which we believe to be the {gamma}-phase. Further pressure and temperature cycling suggests that the sample transformed reversibly into and out of the amorphous phase near the phase line.
Authors:
; ; ; ;  [1] ;  [2]
  1. (CIW)
  2. (
Publication Date:
OSTI Identifier:
1049535
Resource Type:
Journal Article
Resource Relation:
Journal Name: High Pressure Res.; Journal Volume: 31; Journal Issue: (1) ; 03, 2011
Research Org:
Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
Sponsoring Org:
DOE - BASIC ENERGY SCIENCESNSFU.S. ARMY RESEARCH
Country of Publication:
United States
Language:
ENGLISH
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; CHEMICAL EXPLOSIVES; ETHYLENE; GRAPHITE; PHASE DIAGRAMS; PRESSURE RANGE; SYNCHROTRONS; X-RAY DIFFRACTION