The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

HP-HT sintering, microstructure, and properties of B6O- and TiC-containing composites based on cBN

På svenska

Author

Summary, in English

The article presents a study of the potential for the use of B6O superhard boron suboxide as a binder in composite materials with a low cBN content. Superhard B6O is characterized by higher mechanical properties than TiC widely used in commercial materials today. Composites containing 60 vol % cBN and different binder compositions that included B6O and TiC have been sintered in a toroid-type high-pressure apparatus at a pressure of 7.7 GPa in a temperature range from 1500 to 2000 A degrees C. The microstructure, phase and elemental composition of the sintered materials have been examined via electron microscopy and X-ray diffraction analysis. Mechanical properties have been analyzed via indentation techniques. The performance of the cutting tools produced from the sintered composites has been evaluated in turning hardened cold work tool steel.

Publishing year

2015

Language

English

Pages

143-154

Publication/Series

Journal of Superhard Materials

Volume

37

Issue

3

Document type

Journal article

Publisher

Springer

Topic

  • Composite Science and Engineering
  • Materials Chemistry

Keywords

  • superhard composites
  • cubic boron nitride
  • boron suboxide
  • titanium
  • carbide

Status

Published

ISBN/ISSN/Other

  • ISSN: 1934-9408