Characterization of TiB2-AlN composites for application as cutting tool | Zendy

Luiz Antônio Fonseca Peçanha | Zendy; Sérgio Neves Monteiro | Zendy; Ítalo Tomaz | Zendy; Marlon Mendes de Oliveira | Zendy; Alan Monteiro Ramalho | Zendy; Noan Tonini Simonassi | Zendy; Fábio de Oliveira Braga | Zendy

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Characterization of TiB2-AlN composites for application as cutting tool

Author(s) -

Luiz Antônio Fonseca Peçanha,

Sérgio Neves Monteiro,

Ítalo Tomaz,

Marlon Mendes de Oliveira,

Alan Monteiro Ramalho,

Noan Tonini Simonassi,

Fábio de Oliveira Braga

Publication year - 2018

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2018.07.010

Subject(s) - materials science , spark plasma sintering , scanning electron microscope , composite material , microstructure , machining , ceramic , relative density , characterization (materials science) , sintering , fracture toughness , toughness , cutting tool , metallurgy , nanotechnology

Densified ceramic TiB2-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% TiB2 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% TiB2 composites revealed unsatisfactory performance while the 70 wt% AlN disclosed satisfactory cutting performance.

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