Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Nature of fractures in pyrocerams

  • 20 Accesses


  1. 1.

    The completely rough fracture surface of pyroceram 4 indicates that the surface and the bulk of this material have equal strength. This is confirmed by the equal defectiveness of the surface and of the fracture of pyroceram 4.

  2. 2.

    The fracture surface of pyrocerams 1–3 has several zones differing in roughness and defectiveness; this is associated with the process of propagation of the fracture.

  3. 3.

    The dependence of bending strength on the area of the mirror zone is fairly well described by the expression σ tr 4¯S = Cs , and in that case the variation coefficient of CS does not exceed 16–20%.

This is a preview of subscription content, log in to check access.

Literature cited

  1. 1.

    V. N. Pukh, Strength and Fracture of Glass [in Russian], Nauka, Leningrad (1973).

  2. 2.

    S. S. Solntsev and E. M. Morozov, Failure of Glass [in Russian], Mashinostroenie, Moscow (1978).

  3. 3.

    G. M. Bartenev, Structure and Mechanical Properties of Inorganic Glasses [ui Russian], Stroiizdat, Moscow (1966).

  4. 4.

    K. L. Phillips, “Fracture of glass,” in: Fracture [Russian translation], Vol. 7, Mir, Moscow (1976), pp. 23–47.

Download references

Author information

Additional information

Translated from Problemy Prochnosti, No. 3, pp. 85–87, March, 1980.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Raikhel', A.M., Likhtenshtein, V.N., Nepomnyashchii, O.A. et al. Nature of fractures in pyrocerams. Strength Mater 12, 353–356 (1980). https://doi.org/10.1007/BF01129089

Download citation


  • Fracture Surface
  • Variation Coefficient
  • Equal Strength
  • Rough Fracture
  • Rough Fracture Surface