Crystal growth of energetic materials during high acceleration
- Army ARDEC, Picatinny Arsenal, NJ (United States)
- French-German Research Inst. of Saint-Louis (France)
- Naval Surface Warfare Center, Silver Spring, MD (United States)
Studies of the growth of crystals of energetic materials under conditions of high acceleration in an ultracentrifuge are reported. When a saturated solution is accelerated in an ultracentrifuge, the solute molecules move individually through the solvent molecules to form a crystal at the outer edge of the tube if the solute is more dense than the solvent. Since there is no evaporation or temperature variation, convection currents caused by simultaneous movement of solvent and solute are minimized and crystal defects are potentially minimized. Crystal growth is controlled by the g-level of the acceleration. In addition, solution inclusions and bubbles migrate out of the saturated solution as a result of the pressure gradient induced by the g-force. The authors present results of TNT, RDX, and TNAZ grown at high g from various solutions.
- OSTI ID:
- 248225
- Report Number(s):
- CONF-951155-; ISBN 1-55899-321-5; TRN: IM9628%%325
- Resource Relation:
- Conference: Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 27 Nov - 1 Dec 1995; Other Information: PBD: 1996; Related Information: Is Part Of Decomposition, combustion, and detonation chemistry of energetic materials; Brill, T.B. [ed.] [Univ. of Delaware, Newark, DE (United States)]; Russell, T.P. [ed.] [Naval Research Lab., Washington, DC (United States)]; Tao, W.C. [ed.] [Lawrence Livermore National Lab., CA (United States)]; Wardle, R.B. [ed.] [Thiokol Corp., Brigham City, UT (United States)]; PB: 469 p.; Materials Research Society symposium proceedings, Volume 418
- Country of Publication:
- United States
- Language:
- English
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