Paper Title:
CBN Composites with a Nanosized Binding Phase
  Abstract

In this work cBN-TiN composites were studied. The composites were prepared by the HPHT technique (p=8 GPa, T=1750 0C). A TiN binding phase was used in two forms: as micro and nanomaterials. Thermodynamic calculations showed that formation of new phases in the cBNTiN composites was not possible in the experimental conditions which was confirmed by XRD investigations carried out. The surface morphology of nanocomposites was studied by scanning electron microscopy. The structure of these composites was compact; a TiN phase was uniformly distributed between cBN grains. Hardness was measured by the Vickers method using an indentation load of 9.81 N. The hardness of the investigated samples was dependent on the volume and grain size of the binding phase. Young's modulus of elasticity was determined, but its value was found to be dependent on the grain size of the TiN phase.

  Info
Periodical
Solid State Phenomena (Volume 106)
Edited by
Radu Robert Piticescu, Witold Lojkowski and John R. Blizzard
Pages
149-152
DOI
10.4028/www.scientific.net/SSP.106.149
Citation
W. Gorczyńska-Zawiślan, E. Benko, P. Klimczyk, "CBN Composites with a Nanosized Binding Phase", Solid State Phenomena, Vol. 106, pp. 149-152, 2005
Online since
September 2005
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Price
$32.00
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