Characterization of sintered boron suboxide with nickel compounds

Oluwagbenga T. Johnson, Enoch N. Ogunmuyiwa, Iakovos Sigalas, Ayo S. Afolabi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Although B60 materials have shown excellent potentials for wear resistant and cutting tool applications, the problem of low fracture toughness and the difficulties to densify has delayed the application of B60 materials in the industry. In this work, efforts have been directed towards improving the fracture toughness and densification of these materials by incorporating suitable secondary phases and tailoring the microstructure to the desired properties. Synthesized B60 was hot pressed at 1850°C and 80 MPa in an argon environment, with nickel compounds (nickel (Ni) and nickel oxide (NiO)). The addition of 1.10 vol.% of additives improved the densification of the B60 powders in comparison to the pure B60 material. The fracture mode observed in the sintered materials is mainly transgranular.

Original languageEnglish
Title of host publicationWCE 2015 - World Congress on Engineering 2015
EditorsS. I. Ao, Len Gelman, Len Gelman, David W.L. Hukins, Andrew Hunter, Alexander M. Korsunsky, S. I. Ao, S. I. Ao
PublisherNewswood Limited
Number of pages5
ISBN (Electronic)9789881404701
Publication statusPublished - 2015
Event2015 World Congress on Engineering, WCE 2015 - London, United Kingdom
Duration: Jul 1 2015Jul 3 2015

Publication series

NameLecture Notes in Engineering and Computer Science
ISSN (Print)2078-0958


Other2015 World Congress on Engineering, WCE 2015
Country/TerritoryUnited Kingdom

All Science Journal Classification (ASJC) codes

  • Computer Science (miscellaneous)


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