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Title: Impact ignition and combustion of micron-scale aluminum particles pre-stressed with different quenching rates

Abstract

Pre-stressing aluminum (Al) particles by annealing and quenching alters dilatational strain and is linked to increased particle reactivity. The quenching rate associated with pre-stressing is a key parameter affecting the final stress state within the Al particle, with faster quenching rates theoretically favoring a higher, more desirable stress state. Micron scale Al particles are annealed to 573 K, then quenched at different rates (i.e., 200 and 900 K/min), mixed with bismuth oxide (Bi2O3), and the Al + Bi2O3 mixtures are examined under low-velocity, drop-weight impact conditions. Both quenching rates showed increased impact ignition sensitivity (i.e., between 83% and 89% decrease in ignition energy). However, the slower quenching rate showed a 100% increase in pressurization rate compared to untreated particles, while the faster quenching rate showed a 97% increase in peak pressure, indicating that these two quenching rates affect Al particles differently. Surprisingly, synchrotron X-ray diffraction data show that the 200 K/min quenched particles have a higher dilatational strain than the untreated particles or the 900 K/min quenched particles. Results are rationalized with the help of a simple mechanical model that takes into account elastic stresses, creep in the alumina shell, and delamination of shell from the core. The model predictsmore » that Al powder quenched at 200 K/min did not experience delamination. In contrast, Al quenched at 900 K/min did not have creep but does have delamination, and under impact, delamination led to major fracture, greater oxygen access to the core, and significant promotion of reaction. Thus, the increase in quenching rate and shell-core delamination are more important for the increase in Al reactivity than pre-stressing alone.« less

Authors:
 [1]; ORCiD logo [2];  [3]; ORCiD logo [1]
+ Show Author Affiliations
  1. Texas Tech Univ., Lubbock, TX (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  3. Iowa State Univ., Ames, IA (United States); Ames Lab., Ames, IA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1477385
Alternate Identifier(s):
OSTI ID: 1471264
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 124; Journal Issue: 11; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Hill, Kevin J., Tamura, Nobumichi, Levitas, Valery I., and Pantoya, Michelle L. Impact ignition and combustion of micron-scale aluminum particles pre-stressed with different quenching rates. United States: N. p., 2018. Web. doi:10.1063/1.5044546.
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Hill, Kevin J., Tamura, Nobumichi, Levitas, Valery I., & Pantoya, Michelle L. Impact ignition and combustion of micron-scale aluminum particles pre-stressed with different quenching rates. United States. https://doi.org/10.1063/1.5044546
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Hill, Kevin J., Tamura, Nobumichi, Levitas, Valery I., and Pantoya, Michelle L. Tue . "Impact ignition and combustion of micron-scale aluminum particles pre-stressed with different quenching rates". United States. https://doi.org/10.1063/1.5044546. https://www.osti.gov/servlets/purl/1477385.
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@article{osti_1477385,
title = {Impact ignition and combustion of micron-scale aluminum particles pre-stressed with different quenching rates},
author = {Hill, Kevin J. and Tamura, Nobumichi and Levitas, Valery I. and Pantoya, Michelle L.},
abstractNote = {Pre-stressing aluminum (Al) particles by annealing and quenching alters dilatational strain and is linked to increased particle reactivity. The quenching rate associated with pre-stressing is a key parameter affecting the final stress state within the Al particle, with faster quenching rates theoretically favoring a higher, more desirable stress state. Micron scale Al particles are annealed to 573 K, then quenched at different rates (i.e., 200 and 900 K/min), mixed with bismuth oxide (Bi2O3), and the Al + Bi2O3 mixtures are examined under low-velocity, drop-weight impact conditions. Both quenching rates showed increased impact ignition sensitivity (i.e., between 83% and 89% decrease in ignition energy). However, the slower quenching rate showed a 100% increase in pressurization rate compared to untreated particles, while the faster quenching rate showed a 97% increase in peak pressure, indicating that these two quenching rates affect Al particles differently. Surprisingly, synchrotron X-ray diffraction data show that the 200 K/min quenched particles have a higher dilatational strain than the untreated particles or the 900 K/min quenched particles. Results are rationalized with the help of a simple mechanical model that takes into account elastic stresses, creep in the alumina shell, and delamination of shell from the core. The model predicts that Al powder quenched at 200 K/min did not experience delamination. In contrast, Al quenched at 900 K/min did not have creep but does have delamination, and under impact, delamination led to major fracture, greater oxygen access to the core, and significant promotion of reaction. Thus, the increase in quenching rate and shell-core delamination are more important for the increase in Al reactivity than pre-stressing alone.},
doi = {10.1063/1.5044546},
journal = {Journal of Applied Physics},
number = 11,
volume = 124,
place = {United States},
year = {Tue Sep 18 00:00:00 EDT 2018},
month = {Tue Sep 18 00:00:00 EDT 2018}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1063/1.5044546
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Cited by: 12 works
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Figures / Tables:

FIG. 1 FIG. 1: (a) Schematic of screw powder chamber with 1 g of powder capacity. (b) Photograph of powder chamber including O-ring seal and thermo-couple wires.
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Works referenced in this record:

The Use of Glass Anvils in Drop‐Weight Studies of Energetic Materials
journal, April 2015

  • Walley, Stephen M.; Field, John E.; Biers, Richard A.
  • Propellants, Explosives, Pyrotechnics, Vol. 40, Issue 3
  • DOI: 10.1002/prep.201500043

A dedicated superbend x-ray microdiffraction beamline for materials, geo-, and environmental sciences at the advanced light source
journal, March 2009

  • Kunz, Martin; Tamura, Nobumichi; Chen, Kai
  • Review of Scientific Instruments, Vol. 80, Issue 3
  • DOI: 10.1063/1.3096295

Dropping the hammer: Examining impact ignition and combustion using pre-stressed aluminum powder
journal, September 2017

  • Hill, Kevin J.; Warzywoda, Juliusz; Pantoya, Michelle L.
  • Journal of Applied Physics, Vol. 122, Issue 12
  • DOI: 10.1063/1.5003632

Improving aluminum particle reactivity by annealing and quenching treatments: Synchrotron X-ray diffraction analysis of strain
journal, January 2016

Analysis of Bi-Metal Thermostats
journal, January 1925

A slice of an aluminum particle: Examining grains, strain and reactivity
journal, November 2016

Pre-Stressing Micron-Scale Aluminum Core-Shell Particles to Improve Reactivity
journal, January 2015

  • Levitas, Valery I.; McCollum, Jena; Pantoya, Michelle
  • Scientific Reports, Vol. 5, Issue 1
  • DOI: 10.1038/srep07879

Thermodynamic Analysis of Combustion Products at High Temperature and Pressure
journal, April 1998

Stress relaxation in pre-stressed aluminum core–shell particles: X-ray diffraction study, modeling, and improved reactivity
journal, August 2016

Mechanochemical mechanism for reaction of aluminium nano- and micrometre-scale particles
journal, November 2013

  • Levitas, Valery I.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 371, Issue 2003
  • DOI: 10.1098/rsta.2012.0215

Mechanochemical mechanism for fast reaction of metastable intermolecular composites based on dispersion of liquid metal
journal, April 2007

  • Levitas, Valery I.; Asay, Blaine W.; Son, Steven F.
  • Journal of Applied Physics, Vol. 101, Issue 8, Article No. 083524
  • DOI: 10.1063/1.2720182

Automated indexing for texture and strain measurement with broad-bandpass x-ray microbeams
journal, November 1999

  • Chung, Jin-Seok; Ice, Gene E.
  • Journal of Applied Physics, Vol. 86, Issue 9
  • DOI: 10.1063/1.371507

Microstructural Behavior of the Alumina Shell and Aluminum Core Before and After Melting of Aluminum Nanoparticles
journal, December 2011

  • Firmansyah, Dudi Adi; Sullivan, Kyle; Lee, Kwang-Sung
  • The Journal of Physical Chemistry C, Vol. 116, Issue 1
  • DOI: 10.1021/jp2095483

Impact Testing of Explosives and Propellants
journal, June 1995

Internal stresses in pre-stressed micron-scale aluminum core-shell particles and their improved reactivity
journal, September 2015

  • Levitas, Valery I.; McCollum, Jena; Pantoya, Michelle L.
  • Journal of Applied Physics, Vol. 118, Issue 9
  • DOI: 10.1063/1.4929642

The effect of pre-heating on flame propagation in nanocomposite thermites
journal, August 2010

Doped δ-bismuth oxides to investigate oxygen ion transport as a metric for condensed phase thermite ignition
journal, January 2017

  • Wang, Xizheng; Zhou, Wenbo; DeLisio, Jeffery B.
  • Physical Chemistry Chemical Physics, Vol. 19, Issue 20
  • DOI: 10.1039/C6CP08532F

High-velocity Impact Fragmentation of Brittle, Granular Aluminum Spheres
journal, January 2013

XMAS: A Versatile Tool for Analyzing Synchrotron X-ray Microdiffraction Data
book, April 2014

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    Works referencing / citing this record:

    Highly reactive energetic films by pre-stressing nano-aluminum particles
    journal, January 2019

    • Bello, Michael N.; Williams, Alan M.; Levitas, Valery I.
    • RSC Advances, Vol. 9, Issue 69
    • DOI: 10.1039/c9ra04871e

    Single Particle Combustion of Pre-Stressed Aluminum
    journal, May 2019

    • Hill, Kevin J.; Pantoya, Michelle L.; Washburn, Ephraim
    • Materials, Vol. 12, Issue 11
    • DOI: 10.3390/ma12111737

    Single Particle Combustion of Pre-Stressed Aluminum
    journal, May 2019

    • Hill, Kevin J.; Pantoya, Michelle L.; Washburn, Ephraim
    • Materials, Vol. 12, Issue 11
    • DOI: 10.3390/ma12111737

    Highly Reactive Prestressed Aluminum under High Velocity Impact Loading: Processing for Improved Energy Conversion
    journal, July 2019

    • Hill, Kevin J.; Pantoya, Michelle L.
    • Advanced Engineering Materials, Vol. 21, Issue 9
    • DOI: 10.1002/adem.201900492
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      Figures / Tables found in this record:

      FIG. 1 (p. 4)figure
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      FIG. 4 (p. 6)figure
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      TABLE I (p. 6)table
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      TABLE III (p. 7)table
      TABLE IV (p. 7)table
      TABLE V (p. 8)table
      FIG. 7 (p. 9)figure
      FIG. 8 (p. 10)figure
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