Sintered Titanium-Hydroxyapatite Composites as Artificial Bones

Pongporn Moonchaleanporn; Nuchthana Poolthong; Ruangdaj Tongsri

doi:10.4028/www.scientific.net/KEM.659.35

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 659Sintered Titanium-Hydroxyapatite Composites as...

Sintered Titanium-Hydroxyapatite Composites as Artificial Bones

Abstract:

The design of engineered bone substitutes takes biocompatibility and mechanical compatibility into account as prerequisite requirements. Titanium (Ti) and hydroxyapatite (HA) with chemical formula of Ca₁₀(PO₄)₆(OH)₂, show good biocompatibility and are known as biomaterials. To combine metal powder (Ti) and ceramic powder (HA) as a composite material with mechanical properties comparable to those of natural bones needs strategy. In this work, powder metallurgy process was employed to produce Ti-HA composites, with nominal HA powder contents in the range of 0-100 vol.%. Mixtures of Ti and HA powders were pressed in a rigid die. Sintering was performed in vacuum atmosphere. The as-sintered specimens were tested on biocompatibility in a human-osteoblast cells. It was found that processing and materials parameters, including compaction pressure, control the composite microstructures and mechanical properties. Laboratory bone tissue culturing showed that a bone tissue could grow on the artificial bones (sintered Ti-HA composites).

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Periodical:

Key Engineering Materials (Volume 659)

Pages:

35-39

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.659.35

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Online since:

August 2015

Authors:

Pongporn Moonchaleanporn*, Nuchthana Poolthong, Ruangdaj Tongsri

Keywords:

Artificial Bone, Biomaterials, Hydroxyapatite, Titanium

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