Laser Initiation of Energetic Materials: Selective Photoinitiation Regime in Pentaerythritol Tetranitrate

2011 ◽  
Vol 115 (14) ◽  
pp. 6893-6901 ◽  
Author(s):  
Edward D. Aluker ◽  
Alexander G. Krechetov ◽  
Anatoliy Y. Mitrofanov ◽  
Denis R. Nurmukhametov ◽  
Maija M. Kuklja
Keyword(s):  
Energetic Materials ◽  
Laser Initiation ◽  
Pentaerythritol Tetranitrate

Laser initiation of energetic materials: a historical overview

2007 ◽  
Author(s):  
M. D. Bowden ◽  
M. Cheeseman ◽  
S. L. Knowles ◽  
R. C. Drake
Keyword(s):  
Energetic Materials ◽  
Laser Initiation ◽  
Historical Overview

Patterning PETN and HMX using Dip Pen Nanolithography

2005 ◽  
Vol 896 ◽  
Author(s):  
Omkar Nafday ◽  
Brandon Weeks ◽  
Jason Haaheim ◽  
Ray Eby
Keyword(s):  
Surface Energy ◽  
Scanning Probe Microscopy ◽  
Convenient Method ◽  
Energetic Materials ◽  
Scanning Probe ◽  
Pentaerythritol Tetranitrate ◽  
High Explosives ◽  
Shock Initiation ◽  
Effect Of Surface ◽  
Dip Pen Nanolithography

AbstractRecently there has been a focused effort to develop reliable nanoscopic writing and reading capabilities. Dip-pen nanolithography (DPN) has emerged as a convenient method to deliver nanoscale materials onto a substrate by leveraging scanning probe microscopy capability. A new application for the DPN method is the field of microdetonics which is the microscale decomposition and study of reactions of explosives. Results are presented for patterning pentaerythritol tetranitrate (PETN) and cyclotetramethylene tetranitramine (HMX) on silicon and mica substrates. The ultimate goal is to pattern both energetic materials in nanoscale registry and investigate their reaction and decomposition at the nanoscale due to heating or shock initiation. In addition to patterning of high explosives, a discussion on the effect of surface energy on patterning rates is investigated. This knowledge will be applicable to inks beyond high explosives.

Crystal growth of organic energetic materials: pentaerythritol tetranitrate

2012 ◽  
Vol 2 (3) ◽  
Author(s):  
Gengxin Zhang ◽  
Brandon Weeks ◽  
Xin Zhang
Keyword(s):  
Crystal Structure ◽  
Thermal Stability ◽  
Crystal Growth ◽  
Energetic Materials ◽  
Strong Dependence ◽  
Energy Output ◽  
Deposition Flux ◽  
Strong Impact ◽  
Layer By Layer ◽  
Pentaerythritol Tetranitrate

AbstractThe energy output performance and thermal stability of organic energetic materials have a strong dependence on the porosity, particle morphology, and micro-scale crystal structure. This paper reviews the growth habit of pure pentaerythritol tetranitrate (PETN) crystals and the effect of metal impurities on microcrystal morphology of PETN films. The pure crystal growth shows that PETN molecules diffuse on the surface and nucleate in a two-dimensional layer-by-layer fashion; the final structure is controlled by the deposition flux. Also, the effect of metal cation impurities has a strong impact on the thermal stability and crystal structure, and is dependent on the doping level.

Dislocations in energetic materials. 2. Characterization of the growth-induced dislocation structure of pentaerythritol tetranitrate (PETN)

1984 ◽  
Vol 17 (5) ◽  
pp. 320-327 ◽  
Author(s):  
P. J. Halfpenny ◽  
K. J. Roberts ◽  
J. N. Sherwood
Keyword(s):  
Energetic Materials ◽  
Relative Frequency ◽  
Dislocation Line ◽  
Frequency Of Occurrence ◽  
Pentaerythritol Tetranitrate ◽  
X Ray ◽  
Factors Influencing ◽  
Different Types ◽  
Induced Dislocation

The predominant dislocation types in crystals of pentaerythritol tetranitrate (PETN) grown from solution have been observed and characterized using transmission X-ray topography. The dislocation characterization, carried out by contrast variations, was aided and simplified by comparison of observed dislocation line directions with those calculated from the theory of preferred line directions of Klapper [Habilitationsschrift (1975). RWTH, Aachen]. With few exceptions, the dislocations observed were induced during growth. Eight different types were identified comprising all possible Burgers vectors up to and including (111). Of these, one was pure edge, the remainder being of mixed character. The relative frequency of occurrence of the dislocation types is discussed, together with factors influencing dislocation contrast and characterization.

Reduction of energy of laser initiation of energetic materials

2012 ◽  
Vol 442 (2) ◽  
pp. 40-44 ◽  
Author(s):  
I. G. Assovskiy ◽  
V. V. Kozynda
Keyword(s):  
Energetic Materials ◽  
Laser Initiation
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