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The effect of Si content on structure and mechanical features of silicon-containing calcium-phosphate-based films deposited by RF-magnetron sputtering on titanium substrate treated by pulsed electron beam
| Content Provider | Scilit |
|---|---|
| Author | Surmeneva, M. Tyurin, A. Mukhametkaliyev, T. Teresov, A. Koval, A. Pirozhkova, T. Shuvarin, I. Chudinova, E. Surmenev, Roman |
| Copyright Year | 2015 |
| Description | Journal: Iop Conference Series: Materials Science and Engineering Silicon-containing calcium phosphate (Si-CaP) coatings were fabricated by radio frequency (rf) magnetron sputtering using the targets prepared from hydroxyapatite (HA) powder with different silicon content. A powder of Si-HA $(Ca_{10}(PO_{4})_{6-x}(SiO_{4})_{x}(OH)_{2-x}$, x=0.5 and 1.72) was prepared by mechanochemical activation and then used as a precursor-powder to prepare a target for sputtering. The titanium substrate was acid etched and treated with pulsed electron beam with an energy density of 15 $J/cm^{2}$. The average crystallite size as determined by XRD was 28 nm for the coatings obtained using the target prepared from the Si-HA powder (x=0.5), whereas Si-CaP (Si-HA powder x=1.72) films showed an amorphous structure. The nanohardness and the Young's modulus of the Si-CaP coating (x=0.5) deposited on titanium treated by pulsed electron beam are enhanced to 4.5 and 113 GPa compared to titanium substrate. Increase of Si content resulted in a dramatic decrease of the nanohardness and Young's modulus of Si-CaP films. However, Si-CaP coatings with the highest Si content revealed significantly lower values of elastic modulus, but slightly higher values of H/E and $H^{3}/E^{2}$ than did the non-coated specimens. Rf-magnetron sputtering allowed us to produce Si- CaP coatings with higher nanohardness and lower elastic modulus compared to titanium substrate. |
| Related Links | http://iopscience.iop.org/article/10.1088/1757-899X/98/1/012028/pdf |
| ISSN | 17578981 |
| e-ISSN | 1757899X |
| DOI | 10.1088/1757-899x/98/1/012028 |
| Journal | Iop Conference Series: Materials Science and Engineering |
| Issue Number | 1 |
| Volume Number | 98 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2015-11-06 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Materials Science and Engineering Coatings and Films Calcium Phosphate Magnetron Sputtering Si Content |
| Content Type | Text |
| Resource Type | Article |
