Journal of Mining Science

, Volume 52, Issue 5, pp 906–912 | Cite as

Mechanical properties of coal microcomponents under continuous indentation

  • E. L. Kossovich
  • N. N. Dobryakova
  • S. A. Epshtein
  • D. S. Belov
Rock Failure
  • 31 Downloads

Abstract

The article reports data on continuous indentation of different rank black coal and anthracite. The test specimens are specially prepared, and their faces are differently oriented relative to their bedding planes. Different mechanical behavior of coal and anthracite microcomponents in different planes relative to bedding is identified, and relevant values of elasticity modulus and hardness are determined. The measurements exhibit spatial anisotropy of microlevel mechanical properties of vitrinite and inertinite.

Keywords

Coal vitrinite inertinite microcomponents continuous indentation mechanical properties elasticity modulus hardness anisotropy 

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Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • E. L. Kossovich
    • 1
  • N. N. Dobryakova
    • 1
  • S. A. Epshtein
    • 1
  • D. S. Belov
    • 1
  1. 1.National University of Science and Technology—MISISMoscowRussia

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