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Title: Shock-induced martensitic transformation of highly oriented graphite to diamond

Abstract

Shock-wave profiles of highly ordered pyrolytic graphite shocked normal to the basal plane of the graphite crystal structure have been measured. For graphite with sufficient orientational order a martensitic transformation to a diamond-like phase is observed with a transition onset pressure 19.6{plus minus}0.7 GPa, the stability limit of the graphite structure under shock compression. The minimum overpressure required for the transformation is not more than 6 GPa and the two-wave structure of the transition is overdriven to a single wave above 40 GPa.

Authors:
;  [1]
  1. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)
Publication Date:
OSTI Identifier:
7234868
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics; (United States)
Additional Journal Information:
Journal Volume: 71:10; Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; DIAMONDS; SYNTHESIS; GRAPHITE; CRYSTAL-PHASE TRANSFORMATIONS; SHOCK WAVES; PRESSURE EFFECTS; VERY HIGH PRESSURE; CARBON; ELEMENTAL MINERALS; ELEMENTS; MINERALS; NONMETALS; PHASE TRANSFORMATIONS; 665000* - Physics of Condensed Matter- (1992-); 360602 - Other Materials- Structure & Phase Studies

Citation Formats

Erskine, D J, and Nellis, W J. Shock-induced martensitic transformation of highly oriented graphite to diamond. United States: N. p., 1992. Web. doi:10.1063/1.350633.
Erskine, D J, & Nellis, W J. Shock-induced martensitic transformation of highly oriented graphite to diamond. United States. doi:10.1063/1.350633.
Erskine, D J, and Nellis, W J. Fri . "Shock-induced martensitic transformation of highly oriented graphite to diamond". United States. doi:10.1063/1.350633.
@article{osti_7234868,
title = {Shock-induced martensitic transformation of highly oriented graphite to diamond},
author = {Erskine, D J and Nellis, W J},
abstractNote = {Shock-wave profiles of highly ordered pyrolytic graphite shocked normal to the basal plane of the graphite crystal structure have been measured. For graphite with sufficient orientational order a martensitic transformation to a diamond-like phase is observed with a transition onset pressure 19.6{plus minus}0.7 GPa, the stability limit of the graphite structure under shock compression. The minimum overpressure required for the transformation is not more than 6 GPa and the two-wave structure of the transition is overdriven to a single wave above 40 GPa.},
doi = {10.1063/1.350633},
journal = {Journal of Applied Physics; (United States)},
issn = {0021-8979},
number = ,
volume = 71:10,
place = {United States},
year = {1992},
month = {5}
}