Skip to main content
×
Home
    • Aa
    • Aa

Metal ceramic interface toughness II: Mechanisms of fracture and energy dissipation

  • J. D. Kiely (a1) and D. A. Bonnell (a1)
Abstract

Based on observations of plasticity on fracture surfaces, we propose two fracture mechanism for Ni-sapphire interfaces. A brittle-type mechanism is proposed for the decohesion of Ni from sapphire by which cracks advance in increments of 20 nm. When particulates that increase the interface strength are present, debonding occurs at the leading edge of the particulate, and unsteady crack advance occurs. Additionally, toughening mechanisms are proposed for each type of plasticity feature observed, and the fracture energy of each mechanism is quantified. Comparison of energy dissipated by these mechanisms with measured fracture energies indicates how the fracture energy of the interface varies with sulfur segregation and environmental embrittlement.

Copyright
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

1.A. G. Varias , Z. Suo , and C. F. Shih , J. Mech. Phys. Solids 39, 963 (1991).

2.A. G. Varias , Z. Suo , and C. F. Shih , J. Mech. Phys. Solids 40, 485 (1992).

3.N. P. O'Dowd and C. F. Shih , J. Mech. Phys. Solids 39, 989 (1991).

4.M. R. Turner and A. G. Evans , Acta Mater. 44, 863 (1996).

5.B. J. Dalgleish , K. P. Trumble , and A. G. Evans , Acta Metall. 36, 2029 (1988).

6.K. M. Liechti and Y-M. Liang , Int. J. Fract. 55, 95 (1992).

7.N. P. O'Dowd , M. G. Stout , and C. F. Shih , Philos. Mag. A 66, 1037 (1992).

8.M. E. Thurston and A. T. Zehnder , Int. J. Fract. 76, 221 (1996).

9.A. G. Evans and B. J. Dalgleish , Acta Metall. Mater. 40, S295 (1992).

10.I. E. Reimanis , B. J. Dalgleish , M. Brahy , M. Rühle , and A. G. Evans , Acta Metall. Mater. 38, 2645 (1990).

11.I. E. Reimanis , B. J. Dalgleish , and A. G. Evans , Acta Metall. Mater. 39, 3133 (1991).

12.V. Tvergard and J. W. Hutchinson , J. Mech. Phys. Solids 44, 789 (1996).

13.Z. Suo , C. F. Shih , and A. G. Varias , Acta Metall. Mater. 41, 1551 (1993).

14.D. M. Lipkin and G. E. Beltz , Acta Mater. 44, 1287 (1996).

15.G. E. Beltz , J. R. Rice , C. F. Shih , and L. Xia , Acta Mater. 44, 3943 (1996).

16.D. M. Lipkin , D. R. Clarke , and G. E. Beltz , Acta Mater. 44, 4051 (1996).

18.J. D. Kiely and D. A. Bonnell , J. Mater. Res. 13, 2871 (1998).

19.J. W. Hutchinson , J. Mech. Phys. Solids 16, 13 (1968).

20.J. R. Rice and G. F. Rosengren , J. Mech. Phys. Solids 16, 1 (1968).

21.T. C. Wang , Engng. Fract. Mech. 37, 527 (1990).

22.C. R. Champion and C. Atkinson , Proc. R. Soc. London A 432, 547 (1991).

23.S. Sharma and N. Aravas , Int. J. Solids Struct. 30, 695 (1993).

25.E. Zywicz and D. M. Parks , J. Mech. Phys. Solids 40, 511 (1992).

26.J. W. Hutchinson and Z. Suo , Adv. Appl. Mech. 29, 63 (1992).

27.J. R. Rice , J. Appl. Mech. 35, 379 (1968).

31.Y-C. Lu and S. L. Sass , Acta Metall. Mater. 43, 3283 (1995).

32.D. Bika and C. J. McMahon , Acta Metall. Mater. 43, 1909 (1995).

34.M. Y. He , M. R. Turner , and A. G. Evans , Acta Metall. Mater. 43, 3453 (1995).

35.J-G. Li , J. Am. Ceram. Soc. 75, 3118 (1992).

36.R. M. Pilliar and J. Nutting , Philos. Mag. 16, 181 (1967).

38.R. M. McMeeking , J. Mech. Phys. Solids 25, 357 (1977).

40.M. De Graef , B. J. Dalgleish , M. Turner , and A. G. Evans , Acta Metall. Mater. 40, S333 (1992).

41.M. L. Jokl , V. Vitek , and C. J. McMahon , Acta Metall. Mater. 28, 1479 (1980).

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
  • URL: /core/journals/journal-of-materials-research
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×