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Open Access Formation, characterization, and properties of radiopaque TaC–C/C and ZrO2–C/C composites

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TaC-carbon/carbon composites and ZrO2-carbon/carbon composites were prepared by liquid-phase infiltration. Microstructure, phase, flexural strength, and radiopacity were examined using a scanning electron microscope, an X-ray diffractometer, an electronic universal testing machine, and a dental X-ray unit. Results showed that ZrO2 and TaC phases were formed in carbon/carbon composites during heat treatment because of decomposition and the reaction between Ta2O5 and C. The surface micrograph showed that TaC and ZrO2 particles were embedded in the carbon matrix. TaC-carbon/carbon composites and ZrO2-carbon/carbon composites displayed pseudoductile fracture behavior. Radiopaque properties of TaC-carbon/carbon composites and ZrO2-carbon/carbon composites increased with increased concentration of ethylate tantalum and zirconium acetate solutions. At 15 wt% concentration of these solutions, carbon/carbon composites were visible in biomedical X-ray.

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Keywords: CONCENTRATION; FLEXURAL; RADIOPACITY; STRENGTH; TAC-CARBON/CARBON COMPOSITES; ZRO2-CARBON/CARBON COMPOSITES

Document Type: Research Article

Publication date: December 1, 2015

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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