Modeling of thermal explosion in constrained dies for B4C-Ti and BN-Ti powder blends

M. Shapiro*, I. Gotman, V. Dudko

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

11 Scopus citations

Abstract

The process of reactive in-situ synthesis of dense particulate reinforced TiB2/TiC and TiB2/TiN ceramic matrix composites from B4C-Ti and BN-Ti powder blends with and without the addition of Ni has been modeled. The objective of modeling was the determination of optimal thermal conditions preferable for production of fully dense ceramic matrix composites. Towards this goal heat transfer and combustion in dense and porous ceramic blends were investigated during heating at a constant rate. This process was modeled using a heat transfer-combustion model with kinetic parameters determined from the differential thermal analysis of the experimental data. The kinetic burning parameters and the model developed were further used to describe the process of combustion synthesis in a constrained die under pressure. It has been shown that heat removal from the reaction zone affects the ignition temperature of thermal explosion.

Original languageEnglish
Pages (from-to)2233-2239
Number of pages7
JournalJournal of the European Ceramic Society
Volume19
Issue number13-14
DOIs
StatePublished - Oct 1999
Externally publishedYes
EventProceedings of the 1998 New Developments in High Temperature Materials - Istanbul, Turkey
Duration: 12 Aug 199815 Aug 1998

Keywords

  • BC
  • BN
  • Composites
  • Modelling
  • Thermal explosion

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