Adhesion Strength of HFCVD Diamond Coating on WC Substrate Seeded with Diamond and Different Ratios of SiC Powders

Abstract:

The effect of seeding using different mixtures of diamond and silicon carbide (SiC) powders on the adhesion strength of hot-filament chemical vapor deposition (HFCVD) diamond coating on WC-6% Co substrates was studied. Diamond powders with the average grain size of 0.5 μm mixed with various concentrations of SiC powder of 175μm average grain size were employed. Diamond layers were deposited using a production unit of HFCVD technique. The diamond film morphology and the diamond quality were examined using field emission scanning electron microscope (FESEM), X-ray diffraction (XRD) and Raman spectrometer respectively. It was found that the diamond morphologies produced and the qualities were almost the same for all the seeding mixtures of pretreatment. With the blasting technique employed to determine the adhesion strength it was found that the highest diamond film adhesion strength was achieved from the seeding of a mixture of diamond with 5g/l SiC powder.

• Periodical: Advanced Materials Research (Volume 845)
• Pages: 467-471
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.845.467
• Online since: December 2013
• Authors: Engku Mohammad Nazim*, Sudin Izman, Ali Ourdjini, T. Abubakar, H. Mas-Ayu
• Keywords: Adhesion Strength, Blast Test, HFCVD Diamond Film, Seeding, Tungsten Carbide

References

[1] P.W. Butler-Smith, D.A. Axinte n, M. Daine, Solid diamond micro-grinding tools: From innovative design and fabrication to preliminary performance evaluation in Ti–6Al–4V, International Journal of Machine Tools & Manufacture 59 (2012) 55–64.

DOI: 10.1016/j.ijmachtools.2012.03.003

[2] K. Petrikowski, M. Fenker, J. Gäbler, A. Hagemann, S. Pleger, L. Schäfer, Study of CrNx and NbC interlayers for HFCVD diamond deposition onto WC–Co substrates, Diamond Relat. Mater. 33 (2013) 38–44.

DOI: 10.1016/j.diamond.2012.12.011

[3] Qiu-ping Wei, Z.M. Yu, Michael N.R. Ashfold, J. Ye, L. Ma. Synthesis of micro- or nano-crystalline diamond films on WC-Co Substrates with various pretreatments by hot chemical vapor deposition, Applied Surface Science 256 (2010) 4357-4364.

DOI: 10.1016/j.apsusc.2010.02.031

[4] F.A. Almeida, E. Soares, A.J.S. Fernandes, J. Sacramento, R.F. Silva, F.J. Oliviera, Diamond film adhesion onto sub-micrometric WC-Co substrates, Vacuum 85 (2011) 1135-1139.

DOI: 10.1016/j.vacuum.2010.12.025

[5] R. Haubner, W. Kalss, Diamond deposition on hardmetal substrates–Comparison of substrate pre-treatments and industrial applications, Int. J. Refract. Met. Hard Mater. 28 (2010) 475–483.

DOI: 10.1016/j.ijrmhm.2010.03.004

[6] Saroj Kumar Sarangi, Anshuman Chattopadhyay, Ajay Kumar Chattopadhyay, Influence of process parameters on growth of diamond crystal on cemented carbide substrates by HFCVD system, Int. J. Refract. Met. Hard Mater. 31 (2012) 1–13.

DOI: 10.1016/j.ijrmhm.2011.07.007

[7] Gil Cabral, J.C. Madaleno, E. Titus, N. Ali, J. Gra´cio, Diamond chemical vapour deposition on seeded cemented tungsten carbide substrates, Thin Solid Films 515 (2006) 158 – 163.

DOI: 10.1016/j.tsf.2005.12.148

[8] Y. Avigal, A. Hoffman, A new method for nucleation enhancement of diamond, Diamond Relat. Mater. 8 (1999) 127-131.

DOI: 10.1016/s0925-9635(98)00383-5

[9] S.G. Wang, Qing Zhang, S.F. Yoon, J. Ahn, Q. Wang, D.J. Yang, Q.F. Huang, Rusli, W.Z. Tang, F.X. Lu, CVD diamond nucleation enhanced by ultrasonic pretreatment using diamond and mixture of diamond and TaC powders, Diamond Relat. Mater. 11 (2002).

DOI: 10.1016/s0925-9635(02)00138-3

[10] Y. Chakk, R. Brener, A. Hoffman, Mechanism of diamond formation on substrates abraded with a mixture of diamond and metal powders, Diamond Relat. Mater. 5 (1996) 286-291.

DOI: 10.1016/0925-9635(95)00425-4

[11] J.G. Bujinsters, L. Vazquez, J.J. ver Meulen, Substrate pre-treatment by ultrasonication with diamond powder mixtures for nucleation enhancement in diamond film growth, Diamond Relat. Mater. 18(10) (2009) 1239-1246.

DOI: 10.1016/j.diamond.2009.04.007

[12] Bin Shen, Fanghong Sun, Deposition and friction properties of ultra-smooth composite diamond films on Co - tungsten carbide substrates, Diamond Relat. Mater. 18 (2009) 238–243.

DOI: 10.1016/j.diamond.2008.10.053

[13] M. Amaral, F. Almeida, A.J.S. Fernandes, F.M. Costa, F.J. Oliveira, R.F. Silva, The role of surface activation prior to seeding on CVD diamond adhesion, Surface & Coatings Technology 204 (2010) 3585–3591.

DOI: 10.1016/j.surfcoat.2010.04.031