Department of Mechanical Engineering, Islamic Azad University, Roudehen Branch Tehran, Iran

الموضوعات : Analytical and Numerical Methods in Mechanical Design

S.M.M. Shafiei ¹ , H. Raeisifard ²

1 - Department of Mechanical Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran
2 - Department of Mechanical Engineering, Roudehen Branch, Islamic Azad University, Tehran, Iran

تاريخ الإرسال : 16 الأربعاء , ربيع الأول, 1444 تاريخ التأكيد : 16 الأربعاء , ربيع الأول, 1444 تاريخ الإصدار : 07 الخميس , جمادى الأولى, 1444

الکلمات المفتاحية: nano, DLC, PACVD, Aluminum, Raman,

ملخص المقالة :

Plasma-assisted chemical vapor deposition method was used to construct a diamond-like carbon coating on aluminum substrate 6061-T6. Sedimentation was carried out using CH4 as a process gas at different temperatures of 250-300 Celsius with constant flow rate and power. Raman spectroscopy was used to describe these samples. Raman analysis of DLC coatings at different temperatures has been done in detail for two different wavelengths of stimulation of 514 and 785 nm and the results are shown in this paper. Peak changes were observed in both D and G peaks of Raman spectrum with increasing sediment temperature, indicating the formation of compressive strain in DLC coatings at high temperatures. Scattering is observed at both D and G peaks for different wavelengths of excitation, indicating that the DC coating is hydrogenated. It seems that the degree of hydrogenation of DLC coating decreases due to sediment temperature. The study of nano-indentation with increasing sediment temperature shows a marginal increase in hardness.

المصادر:

1. A. Grill, Diamond-like carbon: state of the art, Diamond and Related Materials 8 (1999) 428-434.


2. A. Grill, B. Meyerson, in: K.E. Spear, J.P. Dismukes (Eds.), Synthetic Diamond: Emerging CVD Science and Technology, Wiley, New York (1994), pp. 91.


3. Y. Lifshitz, Diamond-like carbon-present status, Diamond and Related Materials 8 (1999) 1659-1676.


4. N.I. Klyui, V.G. Litovchenko, V.P. Kostylyov, A.G. Rozhin, V.I. Gorbulik, M.A. Voronkin, N.I. Zaika, Silicon solar cells with antireflecting


5. and protective coatings based on diamond- like carbon and silicon carbide films, Opto-Electronics Review 8(4), (2000) 406-409.


6. M.H. Oliveira Jr., D.S. Silva, A.D.S. Côrtes, M.A.B. Namani, F.C. Marques, Diamond like carbon used as antireflective coating on crystalline silicon solar cells, Diamond & Related Materials 18 (2009) 1028–1030.


7. L. Anne Thomson, Frances C. Law, Neil Rushton, J. Franks, Biocompatibility of diamond-like carbon coating, Biomaterials, Vol. 12 January (1991) 37-40.


8. A.G. Gontar, S.P. Starik, V.M. Tkach, V.Y. Gorochov, B.A. Gorshtein, O.M. Mozkova, Application of Diamond like Films for Improving


9. Transparency in the IR, Innovative Super hard Materials and Sustainable Coatings for Advanced Manufacturing, 445–453.


10. K.J. Clay, S.P. Speakman, N.A. Morrison, N. Tomozeiu, W.I. Milne, A. Kapoor, Material properties and triboloical performance of rf-PECVD depositrd DLC coatings, Diamond and Related Materials 7 (1998) 1100-1107.


11. D.P. Monaghan, D.G. Teer, P.A. Logan, I. Efeoglu, R.D. Arnell, Deposition of wear resistant coatings based on diamond like carbon by unbalanced magnetron sputtering, Surf. Coat. Technol. 60 (1993) 525-530.


12. G. Fedosenko, D. Korzec, A. Schwabedissen, J. Engemann, E. Braca, J.M. Kenny, Comparison of diamond-like carbon films synthesized by 2.45 GHz microwave and 13.56 MHz multi-jet radiofrequency plasma sources, Diamond and Related Materials 10 (2001) 920-926.


13. N. Ravi, V.L. Bukhovets, I.G. Varshavskaya, G. Sundararajan, Deposition of diamond-like carbon films on aluminium substrates by RFPECVD technique: Influence of process parameters, Diamond & Related Materials 16 (2007) 90-97.


14. H. Yamada, O. Tsuji, P. Wood, Stress reduction for hard amorphous hydrogenated carbon thin films deposited by the self-bias method, Thin Solid Films 270 (1995) 220-225.


15. A. Erdemir, I. Nilufer, O. Eryilmaz, M. Beschliesser, G. Fenske, Friction and wear performance of diamond-like carbon films grown in various source gas plasmas, Surf. Coat. Technol. 120-121 (1999) 589-593.


16. H. Liu, A. Tanaka, K. Umeda, The tribological characteristics of diamond-like carbon films at elevated temperatures, Thin Solid Films 346 (1999) 162-168.


17. C. Donnet, A. Erdemir, Tribology of Diamond-Like Carbon Films: Fundamentals and Applications, Springer Science and Business Media,LLC, 233 Spring Street, New York, NY 10013, USA (2008).


18. R.K. Roy, K.-R. Lee, Biomedical Applications of Diamond-Like Carbon Coatings: A Review, J. of Biomedical Materials Research Part B:Applied Biomaterial 83B (2007) 72-84.


19. G. Dearnaley, J.H. Arps, Biomedical applications of diamond-like carbon (DLC) coatings: A review, Surface & Coatings Technology 200 (2005) 2518–2524.


20. A.C. Ferrari, Determination of bonding in diamond-like carbon by Raman spectroscopy, Diamond and Related Materials 11 (2002) 1053–1061.


21. A.C. Ferrari, J. Robertson, Raman spectroscopy of amorphous nanostructured, diamond-like carbon, and nanodiamond, Phil. Trans. R. Soc. Lond. A 362 (2004) 2477–2512.