TY - JOUR
T1 - Effect of impurity doping on the morphology of pentaerythritol tetranitrate crystals
AU - Pitchimani, R.
AU - Hope-Weeks, L. J.
AU - Zhang, G.
AU - Weeks, B. L.
N1 - Funding Information:
We thank the Imaging Center of the Biology Department of Texas Tech University for optical microscope facilities. The authors also thank the DOE and ONR N00014-06-1-0922 for funding this work. This work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory (LLNL), under Contract No. W-7405-Eng-48. We are thankful for the helpful suggestions of Dr. Alan Burnham and Dr. Richard Gee (LLNL), who have actually inspired this work.
PY - 2007/10
Y1 - 2007/10
N2 - Pentaerythritol tetranitrate (PETN) is a very powerful explosive and is generally used in initiators. Changes in the morphology and surface area of aging powders are observed during long term storage, due to coarsening mechanisms (e.g., Ostwald ripening, sintering, sublimation, etc.) These changes in powder properties modify the initiation ability and performance. Various stabilization techniques have been investigated to minimize coarsening in PETN powders. In this report we present our study of changes in morphology between the pure PETN and PETN doped with the ions of iron, calcium, sodium, and zinc. We also carried out studies on the effect of annealing on the morphology of these crystals at the macroscopic and microscopic levels to determine how the different ions modify the crystal.
AB - Pentaerythritol tetranitrate (PETN) is a very powerful explosive and is generally used in initiators. Changes in the morphology and surface area of aging powders are observed during long term storage, due to coarsening mechanisms (e.g., Ostwald ripening, sintering, sublimation, etc.) These changes in powder properties modify the initiation ability and performance. Various stabilization techniques have been investigated to minimize coarsening in PETN powders. In this report we present our study of changes in morphology between the pure PETN and PETN doped with the ions of iron, calcium, sodium, and zinc. We also carried out studies on the effect of annealing on the morphology of these crystals at the macroscopic and microscopic levels to determine how the different ions modify the crystal.
KW - Atomic force microscopy
KW - Pure and doped PETN
UR - http://www.scopus.com/inward/record.url?scp=34748855581&partnerID=8YFLogxK
U2 - 10.1080/07370650701567033
DO - 10.1080/07370650701567033
M3 - Article
AN - SCOPUS:34748855581
VL - 25
SP - 203
EP - 212
JO - Journal of Energetic Materials
JF - Journal of Energetic Materials
SN - 0737-0652
IS - 4
ER -