Peculiarities of surface fracture of B4C ceramics under loads

V. K. Struts, O. L. Khasanov, Zulfa Gadilzanovna Bikbaeva, Valentina Valentinovna Polisadova, E. S. Dvilis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The paper presents experimental results showing the nature of the destruction in the surface layer of B4C ceramics during hardness and fracture toughness tests performed by Vickers diamond pyramid indentation with different applied loads (4.91 - 294.3 N). Ceramics made from boron carbide powder with 10 wt% additive of submicron fraction of the same powder sintered in spark discharge plasma by Spark Plasma Sintering (SPS-method) under different sintering conditions was studied. Changes of micro hardness and hardness of the samples were measured by micro hardness tester PMT-3M with the loads P up to 4.9 N; by microhardness tester Micromet with P = 9.8 - 11.77 N; and by hardness tester TP-7R-1 with the loads of 49 - 294.3 N. Indentation, exposure, and unloading were carried out according to standard method during 30 - 40 seconds. The microstructure and topography of the surface of ceramic samples splits after indentation were studied by scanning electron microscopy (SEM, microscope JEOL SEM-7500FA). The profiles of the split surface depth were determined by Linnik interferometer M{cyrillic}II-4.

Original languageEnglish
Title of host publicationAdvanced Materials Research
Pages65-69
Number of pages5
Volume872
DOIs
Publication statusPublished - 2014
EventRussian-German Forum on Nanotechnology - Tomsk, Russian Federation
Duration: 21 May 201324 May 2013

Publication series

NameAdvanced Materials Research
Volume872
ISSN (Print)10226680

Other

OtherRussian-German Forum on Nanotechnology
CountryRussian Federation
CityTomsk
Period21.5.1324.5.13

Keywords

  • Boron carbide ceramics
  • Electron microscopy
  • Microhardness
  • Microstructure
  • SPS-method
  • Surface topography

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Struts, V. K., Khasanov, O. L., Bikbaeva, Z. G., Polisadova, VV., & Dvilis, E. S. (2014). Peculiarities of surface fracture of B4C ceramics under loads. In Advanced Materials Research (Vol. 872, pp. 65-69). (Advanced Materials Research; Vol. 872). https://doi.org/10.4028/www.scientific.net/AMR.872.65