Mechanical properties of coal microcomponents under continuous indentation
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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.
KeywordsCoal vitrinite inertinite microcomponents continuous indentation mechanical properties elasticity modulus hardness anisotropy
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- 1.Lomtadze, V.D., Fiziko-mekhanicheskie svoistva gornykh porod. Metody laboratornykh issledovanii (Physico-Mechanical Properties of Coal. Laboratory Research Techniques), Leningrad: Nedra, 1990.Google Scholar
- 5.Zhang, Z., Zhang, R., Li, G., Li, H., and Liu, J, The Effect of Bedding Structure on Mechanical Property of Coal, Advances in Materials Science and Engineering, 2014, vol. 2014, pp. 1–7.Google Scholar
- 6.Proskuryakov, N.M., Upravlenie sostoyaniem massiva gornykh porod (Rock Mass State Control), Moscow: Nedra, 1991.Google Scholar
- 7.Kožušníková, A, Determination of Microhardness and Elastic Modulus of Coal Components by Using Indentation Method, GeoLines, 2009, vol. 22, pp. 40–43.Google Scholar
- 11.Kalei, G.N, Some Test Data on Microhardness Determined by the Indent Depth, Mashinoved., 1968, no. 3, pp. 105–107.Google Scholar
- 12.Bulychev, S.I., Alekhin, V.P., Shorshorov, M.Kh., Ternovsky, A.P., and Shnyrev, G.D, Determination of Young’s Modulus Based on the Indentation Diagram, Zavod. Lab., 1975, no. 9, pp. 1137–1140.Google Scholar