PSI - Issue 23

Alla V. Balueva et al. / Procedia Structural Integrity 23 (2019) 173–178 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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These results prompt us to question what the appropriate tensile strengths of Hap and Ti should be in order to not interfere with any natural post-surgery healing processes. Similarly, after the implant begins to graft onto the bone, it is standard to ask what the “right” implant to bone bonding strength need s to be in order to accelerate bone growth onto the implant and avoid interference with natural bodily functions. The relationship between titanium, phosphorous, and calcium should be considered in this respect too, as the inherently positive titanium(II) tends to favour the negative oxygen atoms. It is rare to see a calcium-titanium bond throughout these structures, which may leave the calcium atoms in TCP exposed to interact with human bone tissue. Figure 5b demonstrates how the calcium atoms tend to extend outwards, partially due to the attraction between titanium atoms and oxygen atoms.

Acknowledgements

The research was done with partial support of RFBR grants No. 17-08-01579 and No. 17-08-01312 and of contract #AAAA-A17-117021310386-3. This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1548562 [Towns et. al., 2014].

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