Interfacial criteria to avoid pushing of particles during solidification of metal matrix composites

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

The interfacial criterion to avoid pushing of particles during solidification of ceramic reinforced metal matrix composites (MMCs) at low rates of the solidification has been found as: i. for liquid alloys with at least one interface-active solute (at the melt/particle interface) the engulfment of particles is always ensured by the interfacial energy gradient caused by solute build-up; ii. for pure metals and for alloys with no interface-active components engulfment is ensured if the following condition is fulfilled: Δσ = 2σcsclsl<0 (where σ is the interfacial energy, J/m2, and lower indexes indicate the phases in contact: `c' is for ceramic particle, `s' is for solid metal and `l' is for liquid metal). A new model is derived to estimate the interfacial energy between solid metal and solid ceramics. Based on this model, the pushing-engulfment diagrams have been constructed.

Original languageEnglish
Pages (from-to)121-126
Number of pages6
JournalMaterials Science Forum
Volume329
Publication statusPublished - Jan 1 2000
EventProceedings of the 1999 3rd International Conference on Solidification and Gravity - Miskolc, Hung
Duration: Apr 25 1999Apr 28 1999

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Interfacial criteria to avoid pushing of particles during solidification of metal matrix composites'. Together they form a unique fingerprint.

  • Cite this