Boron nitride/titanium nitride laminar lubricating coating deposited by pulsed laser ablation on polymer surface

• Autorzy: Kosydar R. , Bonarski J.T. , Kot M. , Zimowski S. , Ferraris M. , Salvo M. , Major B.
• Języki publikacji: EN

Abstrakty

EN

Pulsed laser deposition technique was applied for covering elastic cast-polyurethane membranes with titanium nitride and boron nitride layers. The deposition process was realized using a Nd:YAG laser with Qswitch in stages; firstly the membranes were coated with ultrathin titanium nitride layer (TixN) by evaporation of a metallic titanium disk in nitrogen gas atmosphere and then a layer of boron nitride (BN) was deposited by ablation of hexagonal h-BN target in argon atmosphere. The surface morphology was observed by scanning electron microscopy. Chemical composition was analyzed by energy dispersive X-ray spectrometry. The phase analysis was performed by means of grazing incidence X-ray diffraction and attenuated total reflection infrared spectroscopy. The crystallographic texture was measured. The wear test was performed by pin-on-disk method. Hexagonal boron nitride layers with (0001)[uvtw] texture with flake-like grains were fabricated. The structure and texture of boron nitride was identical irrespectively of substrate roughness or BN thickness. Pin-on-disk wear tests showed that the coatings effectively decreased the friction coefficient from two to even four times comparing to pure polyurethane and polyurethane covered with graphite. This proved that deposited layers can replace graphite as a lubricating material used to protect polymer surfaces.

Słowa kluczowe

EN

hexagonal boron nitride; lubricating coating; pulsed laser deposition

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2008
• Tom: Vol. 56, nr 3
• Strony: 217--221
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Kosydar R.

autor

Bonarski J.T.

autor

Kot M.

autor

Zimowski S.

autor

Ferraris M.

autor

Salvo M.

autor

Major B.

• Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta St., 30-059 Cracow, Poland,

Bibliografia

• [1] D.A. Lelonis, "Born nitride powder review", GE Advanced Ceramics Publications 81505, (2003).
• [2] R. Haubner, M. Wilhelm, R. Weissenbacher, and B. Lux, "Boron nitrides properties synthesis and applications", Structure and Bonding 102, 1-45 (2002).
• [3] E.A. Smith, "Graphite and boron nitride ("white graphite") aspects of structure, powder size, powder shape and purity", Powder Metallurgy 14, 110-123 (1971).
• [4] R. Major, "Hybrid pulsed laser deposition of gradient TiN and TiCN coatings for biomedical applications", Materials Engineering 3-4, 666-671 (2007), (in Polish).
• [5] L.N. Rusanova, A.G. Romashln, G.I. Kullkova, and O.P. Golubeva, "Boron nitride ceramics: problems and development perspectives", Poroshkovaya Metallurglya 1 (301), 23-31 (1988).
• [6] D.B. Chrisey and G.K. Hubler, Pulsed Laser Deposition of Thin Films, John Wiley and Sons, New York, 1994.
• [7] B. Major, Ablation and Deposition by Pulsed Laser, Akapit, Cracow, 2002, (in Polish).
• [8] P.B. Mirkarimi, K.F. McCarty, and D.L. Medlin, "Review of advanced in cubic boron nitride film synthesis", Materials Science and Engineering R 21, 47-100 (1997).
• [9] W. Mroz, R. Kosydar, M. Jelinek, T. Kocourek, and B. Major, "Phase formation and microstructure of boron nitride thin layers deposited using Nd:YAG and KrF lasers", Surface and Coatings Technology 200, 6438-6443 (2006).
• [10] B. Major, W. Mroz, M. Jelinek, R. Kosydar, M. Kot, L. Major, S. Burdyńska, and R. Kustosz, "BN-based nano-composites obtained by pulsed laser deposition", Bull. Pol. Ac.: Tech. 54 (2), 181-188 (2006).