Refractive Imaging of Air Shock Above Microscale Defects in Pentaerythritol Tetranitrate (PETN) Films

Peguero, Julio C.; Forrest, Eric C.; Knepper, Robert; Hargather, Michael J.; Tappan, Alexander S.; Marquez, Michael P.; Vasiliauskas, Jonathan G.; Rupper, Stephen G.

doi:10.1002/prep.202000029

Title: Refractive Imaging of Air Shock Above Microscale Defects in Pentaerythritol Tetranitrate (PETN) Films

Journal Article · Wed Oct 14 00:00:00 EDT 2020 · Propellants, Explosives, Pyrotechnics

DOI:https://doi.org/10.1002/prep.202000029· OSTI ID:1721590

Peguero, Julio C. ^[1]; Forrest, Eric C. ^[2]; Knepper, Robert ^[2]; Hargather, Michael J. ^[3]; Tappan, Alexander S. ^[2]; Marquez, Michael P. ^[2]; Vasiliauskas, Jonathan G. ^[2]; Rupper, Stephen G. ^[2]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); New Mexico Inst. of Mining and Technology, Socorro, NM (United States)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
New Mexico Inst. of Mining and Technology, Socorro, NM (United States)

Physical vapor deposition (PVD) of high explosives can produce energetic samples with unique microstructure and morphology compared to traditional powder processing techniques, but challenges may exist in fabricating explosive films without defects. Deposition conditions and substrate material may promote microcracking and other defects in the explosive films. Here, we investigate effects of engineered microscale defects (gaps) on detonation propagation and failure for pentaerythritol tetranitrate (PETN) films using ultra-high-speed refractive imaging and hydrocode modelling. Observations of the air shock above the gap reveal significant instabilities during gap crossing and re-ignition.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC04-94AL85000; NA0003525

OSTI ID:: 1721590

Report Number(s):: SAND-2020-9109J; 690280

Journal Information:: Propellants, Explosives, Pyrotechnics, Vol. 46, Issue 1; ISSN 0721-3115

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

References (11)

A Computational Approach to Edge Detection Canny, John IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. PAMI-8, Issue 6 https://doi.org/10.1109/TPAMI.1986.4767851	journal	November 1986
The Composition of Metal Surfaces After Atmospheric Exposure: An Historical Perspective Castle, J. E. The Journal of Adhesion, Vol. 84, Issue 4 https://doi.org/10.1080/00218460802004477	journal	April 2008
On the effect of grain size on shock sensitivity of heterogeneous high explosives Khasainov, B. A.; Ermolaev, B. S.; Presles, H. -N. Shock Waves, Vol. 7, Issue 2 https://doi.org/10.1007/s001930050066	journal	April 1997
CTH: A three-dimensional shock wave physics code McGlaun, J. M.; Thompson, S. L.; Elrick, M. G. International Journal of Impact Engineering, Vol. 10, Issue 1-4 https://doi.org/10.1016/0734-743X(90)90071-3	journal	January 1990
Schlieren and Shadowgraph Techniques Settles, G. S. https://doi.org/10.1007/978-3-642-56640-0	book	January 2001
Shock Initiation of Solid Explosives Campbell, A. W.; Davis, W. C.; Ramsay, J. B. Physics of Fluids, Vol. 4, Issue 4 https://doi.org/10.1063/1.1706354	journal	January 1961
Critical detonation thickness in vapor-deposited pentaerythritol tetranitrate (PETN) films Tappan, Alexander S.; Knepper, Robert; Wixom, Ryan R. SHOCK COMPRESSION OF CONDENSED MATTER - 2011: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedings https://doi.org/10.1063/1.3686369	conference	January 2012
Application of dynamic scaling to the surface properties of organic thin films: Energetic materials Zhang, Gengxin; Weeks, Brandon L.; Holtz, Mark Surface Science, Vol. 605, Issue 3-4 https://doi.org/10.1016/j.susc.2010.11.018	journal	February 2011
Nucleation and growth of thin films Reichelt, K. Vacuum, Vol. 38, Issue 12 https://doi.org/10.1016/0042-207X(88)90004-8	journal	January 1988
The Stability of Detonation. Eyring, Henry; Powell, Richard E.; Duffy, George H. Chemical Reviews, Vol. 45, Issue 1 https://doi.org/10.1021/cr60140a002	journal	August 1949
Controlling the microstructure of vapor-deposited pentaerythritol tetranitrate films Knepper, Robert; Tappan, Alexander S.; Wixom, Ryan R. Journal of Materials Research, Vol. 26, Issue 13 https://doi.org/10.1557/jmr.2011.177	journal	June 2011

Similar Records

Investigating growth to detonation in vapor-deposited hexanitrostilbene and pentaerythritol tetranitrate films using high-throughput methods

Journal Article · Thu Apr 21 00:00:00 EDT 2022 · Journal of Applied Physics · OSTI ID:1721590

Knepper, Robert; Rupper, Stephen; DeJong, Stephanie; +4 more

Aging of Pentaerythritol Tetranitrate (PETN)

Technical Report · Wed Apr 22 00:00:00 EDT 2009 · OSTI ID:1721590

Foltz, M F

The Role of Pentaerythritol Tetranitrate (PETN) Aging in Determining Detonator Firing Characteristics

Journal Article · Wed Oct 21 00:00:00 EDT 2020 · Propellants, Explosives, Pyrotechnics · OSTI ID:1721590

Lease, Nicholas Mathew; Burnside, Nathan James; Brown, Geoffrey Wayne; +10 more

Related Subjects

36 MATERIALS SCIENCE
Pentaerythritol Tetranitrate (PETN)
Schlieren
Detonation
Microdetonation
CTH

Title: Refractive Imaging of Air Shock Above Microscale Defects in Pentaerythritol Tetranitrate (PETN) Films

Citation Formats

References (11)

Similar Records

Related Subjects