Fracture Mechanism of Interpenetrating Iron-Tricalcium Phosphate Composite
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Date
2017-01-01
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Mark
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Trans Tech Publications
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Abstract
The usage of iron alloys for bone fractures treatment has been limited due to its high
density and elastic modulus, as compared to bone. In contrast, the use of tricalcium phosphate
(TCP), a ceramic that promotes bone healing, is mostly limited by its brittle nature. In the present
work the fracture mechanism of a novel iron-TCP interpenetrated composite fabricated by spark
plasma sintering was studied. Specimens were subjected to a diametral tensile-strength-test. The
work of fracture was determined by indirect tensile loading conditions using the diametral tensile
strength test. The results revealed that iron has a clear toughening effect on the microstructure of
tricalcium phosphate specimens consolidated by spark plasma sintering. This is a promising result
to overcome the limited usage of tricalcium phosphate to treat only non-load bearing bone defects.
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Peer-reviewed
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Accepted version
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en
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(C) Trans Tech Publications