Influence of features of interphase boundaries on mechanical properties and fracture pattern in metal-ceramic composites

Sergey Psakhie, Vladimir Ovcharenko, Baohai Yu, Evgeny Shilko, Sergey Astafurov, Yury Ivanov, Alexey Byeli, Alexey Mokhovikov

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The results of a theoretical study on the influence of strength of interphase boundaries in metal-ceramic composite on macroscopical characteristics of composite response such as strength, deformation capacity, fracture energy and fracture pattern are presented. The study was conducted by means of computer-aided simulation by means of movable cellular automaton method taking account of a developed "mesoscopical" structural model of particle-reinforced composite. The strength of interphase boundaries is found to be a key structural factor determining not only the strength properties of metal-ceramic composite, but also the pattern and rate of fracture. The principles for achievement of the high-strength values of particle/binder interfaces in the metal-ceramic composition due to the formation of the wide transition zones (areas of variable chemical composition) at the interphase boundaries are discussed. Simulation results confirm that such transition zones provide a change in fracture mechanism and make the achievement of a high-strength and a high deformation capacity of metal-ceramic composite possible.

Original languageEnglish
Pages (from-to)1025-1034
Number of pages10
JournalJournal of Materials Science and Technology
Volume29
Issue number11
DOIs
Publication statusPublished - 1 Nov 2013

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Cermets
Mechanical properties
Composite materials
Particle reinforced composites
Fracture energy
Cellular automata
Chemical analysis
Binders

Keywords

  • Discrete element based analysis
  • Fracture pattern
  • Interphase boundaries
  • Metal-ceramic composites
  • Particle-reinforced composite
  • Strength and fracture energy

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Polymers and Plastics
  • Metals and Alloys
  • Materials Chemistry

Cite this

Influence of features of interphase boundaries on mechanical properties and fracture pattern in metal-ceramic composites. / Psakhie, Sergey; Ovcharenko, Vladimir; Yu, Baohai; Shilko, Evgeny; Astafurov, Sergey; Ivanov, Yury; Byeli, Alexey; Mokhovikov, Alexey.

In: Journal of Materials Science and Technology, Vol. 29, No. 11, 01.11.2013, p. 1025-1034.

Research output: Contribution to journalArticle

Psakhie, Sergey ; Ovcharenko, Vladimir ; Yu, Baohai ; Shilko, Evgeny ; Astafurov, Sergey ; Ivanov, Yury ; Byeli, Alexey ; Mokhovikov, Alexey. / Influence of features of interphase boundaries on mechanical properties and fracture pattern in metal-ceramic composites. In: Journal of Materials Science and Technology. 2013 ; Vol. 29, No. 11. pp. 1025-1034.
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