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Effect of the addition of t-ZrO2 on the material properties of β-TCP/PCL composites

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Abstract

Using poly-methyl methacrylate as a pore-forming agent, porous β-tricalcium phosphate (β-TCP)/t-ZrO2 composites were fabricated depending on the volume percentages (vol.%) of t-ZrO2 powder. In the porous sintered bodies, hybrid pores, about 20 and 200 μm in diameter, were homogenously dispersed in the β-TCP/t-ZrO2 matrix and showed good interconnection. On the other hand, β-TCP-(t-ZrO2)/polycaprolactone (PCL) composites were fabricated by the melt infiltration process using porous β-TCP/t-ZrO2 bodies. The relative density of the β-TCP-(t-ZrO2)/PCL composites increased as the vol.% of t-ZrO2 increased and its maximum value was about 98.6%. However, the hardness, bending strength and elastic modulus of β-TCP-(t-ZrO2)/PCL composites decreased due to the low densification of porous β-TCP/t-ZrO2 bodies as the volume percentages of t-ZrO2 content increased. The values (using 20 vol.% of t-ZrO2) were 11.4 Hv, 25.5 MPa and 17.2 GPa, respectively.

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Acknowledgements

This research was supported by a grant from the Center for Advanced Materials Processing (CAMP) of the 21st century frontier R&D program funded by the Ministry of Commerce, Industry and Energy (MOCIE), Republic of Korea.

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Authors and Affiliations

  1. Department of Biomedical Engineering and Materials, School of Medicine, Soonchunhyang University, 366-1, Ssangyoung-dong, Cheonan, Chungnam, 330-090, South Korea

    Ho-Yeon Song, Do Van Quang, Young-Ki Min & Byong-Taek Lee

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  1. Ho-Yeon Song
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  2. Do Van Quang
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Correspondence to Byong-Taek Lee.

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Song, HY., Van Quang, D., Min, YK. et al. Effect of the addition of t-ZrO2 on the material properties of β-TCP/PCL composites. J Mater Sci 43, 4450–4454 (2008). https://doi.org/10.1007/s10853-008-2656-4

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  • DOI: https://doi.org/10.1007/s10853-008-2656-4

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