Manufacture and characterization of a new Si-Ca-P biphasic ceramic
| Autor: | Z. B. Luklinska, S. Serena, Piedad N. De Aza |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Process Chemistry and Technology Intermediate region 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Microstructure 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Chemical engineering Homogeneous law visual_art Lattice (order) Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ceramic Electron microscope 0210 nano-technology Silicocarnotite Eutectic system |
| Zdroj: | Ceramics International. 44:13623-13629 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2018.04.198 |
| Popis: | A ceramic of eutectoid composition based on a silicocarnotite (S)- tricalcium phosphate (TCP) sub-system was prepared, and the morphology of the structure investigated. The ceramic material, obtained by a solid-state reaction and slow solidification (6 °C/min) through the eutectoid temperature region (1158 ± 2 °C), presented a typical eutectoid microstructure of alternate layers of both silicocarnotite and α-TCP ss phases. The microstructure of the two phases was homogeneous and free of crystalline and structural defects. High-resolution electron microscopy revealed that the interfaces between the α-TCP ss and silicocarnotite lamellae within the eutectoid grains were faultless and no sign of an intermediate region between both phases. Moreover in both phases, the lattice planes resolved at the interface were free of defects. The orientation relation between the lamellae of the eutectoid grains was determined as follows: {130} α-TCP ss // {302} silicocarnotite. This eutectoid lamellae structure presents a new approach for the bioengineering application for hard tissue replacement as the material combines unique structural and bioactive properties and provides a platform for direct integrations with natural tissue. |
| Databáze: | OpenAIRE |
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