Characterization of TiB 2 -AlN composites for application as cutting tool

Luiz Antônio Fonseca Peçanha, Sergio Neves Monteiro, Ítalo Do Vale Tomaz, Marlon Mendes De Oliveira, Alan Monteiro Ramalho, Noan Tonini Simonassi, Fabio De Oliveira Braga

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Densified ceramic TiB 2 -AlN composites were prepared by spark plasma sintering and samples were subjected to short time machining tests. The maximum relative density and toughness were 96.9% and 16.2 GPa, respectively. Composites with 70 wt% AlN and 70 wt% TiB 2 were applied as cutting tools and tested for cutting parameters. Scanning electron microscopy (SEM) allowed the analysis of the microstructure and the wear surfaces after cutting tests. The 70% TiB 2 composites revealed unsatisfactory performance while the 70 wt% AlN disclosed satisfactory cutting performance.

Original languageEnglish
Pages (from-to)550-553
Number of pages4
JournalJournal of Materials Research and Technology
Volume7
Issue number4
DOIs
Publication statusPublished - 2018
Externally publishedYes

Keywords

  • Composite
  • Cutting tool
  • Machining tests
  • TiB -AlN

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