Non-oxide ceramic nanocomposites with multifunctionality

Takafumi Kusunose, Tohru Sekino

Research output: Contribution to journalArticlepeer-review

Abstract

Two types of Aluminum nitride (AlN) based ceramic nanocomposite with multifunctionality were investigated to improve machinability or electrical conductivity of AlN ceramics with high thermal conductivity. The AlN/BN nanocomposite was fabricated by hot-pressing AlN-BN composite powder, which was prepared by reducing and heating AlN particles containing a mixture of boric acid, urea and carbon. The nanocomposite containing 20 vol.% BN showed high strength, good machinability and relatively high thermal conductivity. On the other hand, the sintered AlN ceramics with CeO2 as an additive indicated high thermal conductivity and electric conductivity which is possible for electric discharge machining.

Original languageEnglish
Pages (from-to)45-48
Number of pages4
JournalKey Engineering Materials
Volume403
DOIs
Publication statusPublished - 2009
Externally publishedYes

Keywords

  • Aluminum nitride
  • Boron nitride
  • Electric conductivity
  • Electric discharge machining
  • Grain boundary
  • High thermal conductivity
  • Machinability
  • Nanocomposite

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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