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Mechanical Properties and Microstructure of Short Carbon Fiber Reinforced Hydroxyapatite Bio-Composite

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Abstract:

The short carbon fiber (Cf) reinforced hydroxyapatite (HA) bio-composite was prepared by an in-situ processing. Mechanical properties and microstructure of Cf/HA were investigated. Structures of HA was analyzed using XRD and fracture surface morphologies of bio-composite were analyzed using SEM. Result shows that grain size of HA under hot pressing sintering (1423K, 35MPa) grow up to approximately 50nm. Bio-composite exhibits excellent mechanical properties when Cf mass fraction is 3%, whose flexural strength and flexural modulus reach the maximum values of 130MPa and 36GPa which surpass common level of nature bone. SEM fracture surface morphologies of Cf/HA shows Cf can be uniformly dispersed in the HA matrix when the mass fraction less than 6%, while when the mass fraction is11%, partial aggregation appears.

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Periodical:

Materials Science Forum (Volume 685)

Pages:

357-361

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.685.357

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Online since:

June 2011

Authors:

Xin Guang Wang, Wan Li Gu, Zong Wei Niu

Keywords:

Biocomposite, Hydroxyapatite (HAP), Microstructure, Short Carbon Fiber

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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