CBN-Ti/TiN composites: hardness and chemical equilibrium as function of temperature

Ewa Benko 2,3Piotr Klimczyk 3Krystyna Lawniczak-Jablonska Edyta Piskorska Tery L. Barr 4Sudipta Seal 5Vladimir S. Urbanovich 1Agata Ormaniec 2

1. Institute of Solid State and Semiconductor Physics of, 17, P.Brovka Street, Minsk 220 072, Belarus
2. University of Bielsko-Biala, Willowa 2, Bielsko-Biała 43-309, Poland
3. Institute of Metal Cutting, Wrocławska 37A, Kraków 30-011, Poland
4. University of Wisconsin at Milwaukee, Milwaukee, WI, United States
5. University of Central Florida, Orlando, FL, United States


BN and TiN are widely used in industrial application because of their wear resistance. Ti and TiN can be used as binding phase and as layered phase in cBN composites. The cBN-TiN composites were pressed using high pressure and high temperature. Ti and TiN films were grown by the arc plasma deposition method. Some of samples were heat treatment in temperature 1000 and 1400 oC. The various phases formed in different temperature have been studied using element selective techniques. X-ray absorption near edge structure (XANES) at K and L -edges were measured with synchrotron radiation and X-ray photoelectron spectra (XPS) using conventional X-ray tube. The shape of the element's absorption edge is a fingerprint for a chemical bonding of an element. When the investigated element is present in two phases in the sample, the X-ray absorption spectral shapes are a linear combination of the spectra from each phase. The chemical shift of the XPS line was analyzed by curve fitting procedure. The possibility of formation of the metallic Ti , TiB2, TiC and TiN phase's inclusions in the investigated samples was examined. The formation of new phases in cBN-Ti/TiN composites are shown to be determining factors for the microhardness. The hardness was measured by Vickers method using an indentation load of 9.81 N. The hardness of the cBN-TiN composites decreases after heat treatment during the formation of nonstoichiometric phases. The hardness of cBN samples layered with Ti and TiN are increase after annealing process due to the formation of stoichiometric phases.

Related papers
  1. Anisotropy of selected properties of Al2O3-graphene composite
  2. Location of metals in ZnO electrospined nanofibers
  3. Can we control the process of room temperature ferromagnetic clusters formation in GaMnAs matrix?
  4. Optimization of technology for contact metallization in electronic devices - XRD and EXAFS studies
  5. Phase composition study of natural minerals used as a source of white pigment production
  6. EXAFS investigation of the local atomic structure of di-alanino acid derivative of protoporphyrin IX
  7. Electronic structure of Mn atoms in (Ga,Mn)As layers modified by high temperature annealing
  8. Identification of Mg based phases in ilmenites by X-ray absorption spectroscopy
  9. Influence of high temperature annealing on the local atomic structure around Mn atoms and magnetic properties of (Ga,Mn)As layers
  10. CBN-TiN nanocomposites; structure and mechanical investigations
  11. The single particles approach of x-ray miroanalysis for estimation a phase composition of altered ilmenite used in pigments production
  12. Crystalline structure and surface morphology of DyxOy films grown on Si
  13. Analysis of stress in buried Ge layers by means of X-ray fluorescence
  14. X-ray fluorescence detection of iron in diaminoacid derivatives of protoporhyrin IX.
  15. Total electron yield X- ray absorption applied for hard materials studies
  16. cBN composites with nanosized binding phase
  17. Use of element selective methods for characterization of thin films
  18. Synchrotron Radiation - Sources and Properties
  19. Investigation of Ge quantum dots buried in silicon matrix by x-ray absorption
  20. Characterization of the c- BN/ TiC, Ti3SiC2, TiN systems by element selective spectroscopy
  21. The Structure Formation of Al2O3 Nanoceramics at High Pressure Sintering

Presentation: poster at E-MRS Fall Meeting 2003, Symposium B, by Ewa Benko
See On-line Journal of E-MRS Fall Meeting 2003

Submitted: 2003-06-18 09:18
Revised:   2009-06-08 12:55
© 1998-2018 pielaszek research, all rights reserved Powered by the Conference Engine