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The Resource Exploiting unique features of nanodiamonds as an advanced energy source, William D. Mattson ..., [et al.], (electronic resource)

Exploiting unique features of nanodiamonds as an advanced energy source, William D. Mattson ..., [et al.], (electronic resource)

Contributor
Summary
We present a combined experimental and theoretical study on carbon nanodiamonds (NDs) using Raman and DAC experimentation and ab initio calculations. Our calculations confirm the surface reconstruction to a fullerene-like structure, and indicate compression of the diamond core, producing an estimated internal pressure of 50 GPa. Quantum molecular dynamics simulations of hypervelocity collisions of NDs show that upon collision, shock-induced amorphization first occurs, followed by complete disruption of the ND surface and ejection of reactive particles into the vacuum. Raman spectra of oxidized ND samples at increasing pressures showed a subtle increase in the vibrational intensity of the Raman feature centered near 1335 cm-1 near 18 GPa and continued under subsequent pressure increases. The intensification of this vibrational feature is consistent with a thinning of the amorphous carbon outer shell, which results in greater exposure to the diamond core with increasing pressure and may be a precursor to Structural Bond Energy Release (SBER) initiation. Additionally, a nearly twofold increase in the vibrational intensity of the sp2 graphite peak centered near 1630 cm-1 in the spectra of the oxidized nanodiamond sample suggests the possibility of a sluggish partial phase transition from sp3 hybridized diamond to sp2 hybridized graphite
Language
eng
Work
Publication
Extent
1 online resource (vi, 12 p.)
Note
  • Title from title screen (viewed Sept. 9, 2010)
  • "April 2009."
Link
http://purl.access.gpo.gov/GPO/LPS126034
Instance
Label
Exploiting unique features of nanodiamonds as an advanced energy source
Title
Exploiting unique features of nanodiamonds as an advanced energy source
Statement of responsibility
William D. Mattson ..., [et al.]
Contributor
Subject
Language
eng
Summary
We present a combined experimental and theoretical study on carbon nanodiamonds (NDs) using Raman and DAC experimentation and ab initio calculations. Our calculations confirm the surface reconstruction to a fullerene-like structure, and indicate compression of the diamond core, producing an estimated internal pressure of 50 GPa. Quantum molecular dynamics simulations of hypervelocity collisions of NDs show that upon collision, shock-induced amorphization first occurs, followed by complete disruption of the ND surface and ejection of reactive particles into the vacuum. Raman spectra of oxidized ND samples at increasing pressures showed a subtle increase in the vibrational intensity of the Raman feature centered near 1335 cm-1 near 18 GPa and continued under subsequent pressure increases. The intensification of this vibrational feature is consistent with a thinning of the amorphous carbon outer shell, which results in greater exposure to the diamond core with increasing pressure and may be a precursor to Structural Bond Energy Release (SBER) initiation. Additionally, a nearly twofold increase in the vibrational intensity of the sp2 graphite peak centered near 1630 cm-1 in the spectra of the oxidized nanodiamond sample suggests the possibility of a sluggish partial phase transition from sp3 hybridized diamond to sp2 hybridized graphite
Member of
Cataloging source
DTICE
Government publication
federal national government publication
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
http://library.link/vocab/relatedWorkOrContributorName
  • Mattson, William D
  • U.S. Army Research Laboratory
Series statement
ARL-TR
Series volume
4783
http://library.link/vocab/subjectName
  • Nanodiamonds
  • Geology, Geochemistry and Mineralogy
  • Atomic and molecular physics and spectroscopy
  • Non-electrical Energy Conversion
  • Diamonds
  • Molecular dynamics
  • Energy transfer
  • Fullerenes
  • Carbon
  • Raman spectra
  • Particle collisions
  • Hypervelocity impact
  • Vibration
  • Compression
  • Amorphous materials
Label
Exploiting unique features of nanodiamonds as an advanced energy source, William D. Mattson ..., [et al.], (electronic resource)
Link
http://purl.access.gpo.gov/GPO/LPS126034
Instantiates
Publication
Note
  • Title from title screen (viewed Sept. 9, 2010)
  • "April 2009."
Bibliography note
Includes bibliographical references (p. 8-9)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
multicolored
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Dimensions
unknown
Extent
1 online resource (vi, 12 p.)
Form of item
online
Governing access note
APPROVED FOR PUBLIC RELEASE
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
digital, PDF file.
Specific material designation
remote
Label
Exploiting unique features of nanodiamonds as an advanced energy source, William D. Mattson ..., [et al.], (electronic resource)
Link
http://purl.access.gpo.gov/GPO/LPS126034
Publication
Note
  • Title from title screen (viewed Sept. 9, 2010)
  • "April 2009."
Bibliography note
Includes bibliographical references (p. 8-9)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
multicolored
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Dimensions
unknown
Extent
1 online resource (vi, 12 p.)
Form of item
online
Governing access note
APPROVED FOR PUBLIC RELEASE
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
digital, PDF file.
Specific material designation
remote

Subject

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