Effect of processing parameters on in situ screen printing-assisted synthesis and electrical properties of Ti3SiC2-based structures

Mylena Lorenz, Nahum Travitzky, Carlos R. Rambo

Research output: Contribution to journalArticlepeer-review

Abstract

This work reports on the development of pastes containing Ti, TiC, Si, and C elementary powders for in situ synthesis of Ti3SiC2 via screen printing. Four paste compositions were manufactured using two powder mixtures (Ti/Si/C and Ti/TiC/Si/C) with different stoichiometry. The pastes were screen printed onto Al2O3 substrates and sintered at 1400 ℃ in argon varying the dwell time from 1 to 5 h. The printed pastes containing TiC and excess of Si exhibited the lowest surface roughness and after 5 h sintering comprised of Ti3SiC2 as the majority phase. The electrical conductivity of this sample was found to range from 4.63×104 to 2.57×105 S·m–1 in a temperature range of 25–400 ℃.

Original languageEnglish
Pages (from-to)129-138
Number of pages10
JournalJournal of Advanced Ceramics
Volume10
Issue number1
DOIs
Publication statusPublished - Feb 2021

Keywords

  • electrical conductivity
  • in situ synthesis
  • MAX phases
  • screen printing
  • Ti3SiC2

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites

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