Characterization of TiB2-AlN composites for application as cutting tool

Characterization of TiB2-AlN composites for application as cutting tool

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 teste...

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Bibliographic Details
Main Authors: Luiz Antônio Fonseca Peçanha, Jr., Sergio Neves Monteiro, Ítalo do Vale Tomaz, Marlon Mendes de Oliveira, Alan Monteiro Ramalho, Noan Tonini Simonassi, Fabio de Oliveira Braga
Format: Article
Language:English
Published: Elsevier 2018-10-01
Series:Journal of Materials Research and Technology
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785417308153
Description
Summary: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. Keywords: Composite, TiB2-AlN, Machining tests, Cutting tool
ISSN:2238-7854

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