The improved mechanical properties of β-CaSiO3 bioceramics with Si3N4 addition.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 26580024.
- Also identified by DOI 10.1016/j.jmbbm.2015.10.014.
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Abstract
The motivation of this study is to investigate the effect of Si3N4 addition on the sinterability of β-CaSiO3 ceramics. β-CaSiO3 ceramics with different content of Si3N4 were prepared at the sintering temperature ranging from 1000°C to 1150°C. The results showed that Si3N4 can be successfully used as sintering additive by being oxidized to form SiO2. The β-CaSiO3 ceramics with 3wt% Si3N4 sintered at 1100°C revealed flexural strength, hardness and fracture toughness of 157.2MPa, 4.4GPa and 2.3MPam(1/2) respectively, which was much higher than that of pure β-CaSiO3 ceramics (41.1MPa, 1.0GPa, 1.1MPam(1/2)). XRD analysis and SEM observation indicated that the main phase maintained to be β-phase after sintering.
Medical subject headings
- Calcium Compounds
- Ceramics
- Mechanical Phenomena
- Silicates
- Silicon Compounds