Grain Boundary Sliding

Grain Boundary Sliding is one of the deformation mechanisms of materials which includes displacement of grains against each other at high homologous temperature and low strain rate. This mechanism is the main reason of ceramics failure at high temperatures due to formation of glassy phase in their grain boundary.[1]

Mechanism

The main mechanism of grain boundary sliding is the motion of dislocations by glide and climb.[2]

References

  1. ↑ Joachim Rösler, Harald Harders, Martin Bäker, Mechanical Behaviour of Engineering Materials, Springer-Verlag Berlin Heidelberg, 2007, p 396. ISBN 978-3-540-73446-8
  2. ↑ A. D. Sheikh-Ali, "Grain Boundary Sliding: Theory" in Encyclopedia of Materials: Science and Technology, K. H. Jürgen Buschow, Robert W. Cahn, Merton C. Flemings, Bernard Ilschner, Edward J. Kramer, Subhash Mahajan, and Patrick Veyssière (Eds.), Elsevier Science Ltd. 2001, pp. 3624-3626. ISBN 978-0-08-043152-9
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