Skip to main content
Log in

Magnetron Sputtering Deposition of Calcium Phosphate Films with Nanoscale Grain Morphology in their Surface

  • Published:
MRS Online Proceedings Library Aims and scope

Abstract

Hydroxyapatite (HA) is a calcium phosphate mineral analogous to the mineral part of bone. This similarity makes this material bioactive and suitable to coat medical implants. However, at present, there is not a coating technique which gives the coated implant the desired properties and long life required for medical implants.

In an effort to produce HA coatings with improved properties, calcium phosphate films were prepared using magnetron sputtering deposition on a silicon substrate at 600°C. Initial efforts resulted in the deposition of amorphous films with a distinctive grain-like surface morphology. The morphological grain size was studied using SEM and found that it was possible to control the average diameter value of the round shaped grains by adjusting the deposition time. Increasing the deposition time increases the mean grain diameter. EDS spectra showed the unintentional addition of carbon, iron and nickel to the samples during deposition. After eliminating the impurities, it was possible to prepare calcium phosphate films in the HA phase but without the grain-like surface morphology. These results suggested that the impurities prevented the formation of the calcium phosphate HA phase while acting as nuclei for the heterogeneous nucleation of the grains. This is an important result where the deposition process parameters can be controlled to functionalize the films in order to produce distinctive nanoscale features in the surface morphology.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. LeGeros, R.Z., LeGeros, J.P., Kim, Y., Kijkowska, R., Zheng, R., Bautista, C., and Wong, J.L., Calcium Phosphates in Plasma-Sprayed HA Coatings, in Bioceramics: Materials and Applications, G. Fischman, A. Clare and L. Hench, eds, Ceramics Transactions 48, American Ceramic Society (1995) 173–189.

  2. Erkmen, Z. E., Journal of Biomedical Materials Research 48 (1999) 861.

    Article  CAS  Google Scholar 

  3. Gu, Y.W., Khor, K.A., and Cheang, P., Biomaterials 24 (2003) 1603–1611.

    Article  CAS  Google Scholar 

  4. Koch, B., Wolke, J.G.C., and deGroot, K., Journal of Biomedical Materials Research 24 (1991) 655–667.

    Article  Google Scholar 

  5. Clèries, L., Fernández-Pradas, J.M., Sardin, G., and Morenza, J.L., Biomaterials 19 (1998) 1483–1487.

    Article  Google Scholar 

  6. Fernández-Pradas, J.M., Sardin, G., Clèries, L., Serra, P., Ferrater, C., and Morenza, J.L., TiN Solid Films 317 (1998) 393–396.

    Article  Google Scholar 

  7. Cui, F.Z., Luo, Z.S., and Feng, Q.L., Journal of Materials Science: Materials in Medicine 8 (1997) 403–405.

    CAS  Google Scholar 

  8. Handi, M., Hakamata, S., and Ektessabi, A.M., presented at the International Conference on Metallurgical Coatings and Thin Films, San Diego, California, (2000).

  9. Ozeki, K., Yuhta, T., Aoki, H., Fukui, Y., and Aoki, H., Surface and Coatings Technology 160 (2002) 54–61.

    Article  CAS  Google Scholar 

  10. Van Dijk, K., Schaeken, H.G., Wolke, J.G.C., Marée, C.H.M., Habraken F.H.P.M., Verhoeven, J. and Jansen, J.A., Journal of Biomedical Materials Research 29 (1995) 269– 276.

    Article  Google Scholar 

  11. Yang, Y., Agrawal, C.M., Kim K.H., Martin, H., Schulz K., Bumgardner I.D., and Ong J.L., Journal of Oral Implantology 29 (2003) 270.

    Article  CAS  Google Scholar 

  12. Jansen, J.A., Wolke, J.G.C., Swann, S., van der Waerden, J.P.C.M., and deGroot, K., Clinical Oral Implants Research 4 (1993) 28–34.

    Article  CAS  Google Scholar 

  13. Nieh, T.G., Jankowski, A.F., and Koike, J., Journal of Materials Research 16 (2001) 3238– 3245.

    Article  CAS  Google Scholar 

  14. Nelea, V., Morosanu, C., Iiiescu, M., and Milhailescu, I.N., Surface & Coatings Technology, 173 (2003) 315.

    Article  CAS  Google Scholar 

  15. Ding, S.-J., Biomaterials, 24 (2003) 4233.

    Article  CAS  Google Scholar 

  16. Clèries, L., Fernández-Pradas, J.M., Sardin, G., and Morenza, J.L, Biomaterials 20 (1999) 1401–1405.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Otaño, W., Pantojas, V.M., Figueroa, J.M. et al. Magnetron Sputtering Deposition of Calcium Phosphate Films with Nanoscale Grain Morphology in their Surface. MRS Online Proceedings Library 975, 608 (2006). https://doi.org/10.1557/PROC-975-0975-DD06-08

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1557/PROC-975-0975-DD06-08

Navigation