We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Dependence of phase composition on dry sliding behaviour in nanocomposite TiB<sub>x</sub>N<sub>y</sub> thin films.
- Authors
Lu, Y. H.; Wang, J. P.; Shen, Y. G.
- Abstract
TiBxNy thin films with different N contents were deposited using unbalanced magnetron sputtering at room temperature. Their structure, phase composition, hardness and dry sliding behaviour were investigated by X-ray diffraction, X-ray photoelectric microscopy, microindentation, pin on disc and scanning electron microscopy. The results indicated that the phase composition in TiBxNy thin films strongly depended on N content. Nanocrystalline (nc-) TiN was preferentially formed with incorporation of N into TiB0·65 till its mole fraction reached a maximum at ∼37 at.-%N. BN was promoted to be formed with further increasing N content. Both friction coefficient and wear rate strongly depended on phase composition rather than hardness. The friction coefficient was increased with increasing N content till its maximum, accompanying with the least amount of deformed wear debris, was achieved at the mole fraction maximum of nc-TiN. A decrease in friction coefficient was followed after formation of BN, accompanying with increasing amount of deformed wear debris. The wear rate showed an inverse trend. During wear procedure, adhesive and abrasive wears coexisted and wear debris was oxidised to form the debris comprising of various types of Ti and B oxides.
- Subjects
THIN films; SOLID state electronics; SPUTTERING (Physics); SCANNING electron microscopy; ELECTRON microscopy; OXIDES
- Publication
Materials Science & Technology, 2007, Vol 23, Issue 10, p1243
- ISSN
0267-0836
- Publication type
Article
- DOI
10.1179/174328407X226608