Effect of fluoride additive on the mechanical properties of hydroxyapatite/alumina composites
| Autor: | Jun-Ho Song, Sung-Jin Kim, Hee-Gon Bang, Sang-Yeup Park |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Materials science
Process Chemistry and Technology Crystal structure Decomposition Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Flexural strength chemistry Phase (matter) Vickers hardness test Materials Chemistry Ceramics and Composites Composite material Fluoride |
| Zdroj: | Ceramics International. 35:1647-1650 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2008.07.016 |
| Popis: | The effect of fluoride additives on the mechanical properties of hydroxyapatite/alumina composites was investigated. When MgF 2 (5 vol%) was added to hydroxyapatite/alumina composites, the decomposition of hydroxyapatite was suppressed due to the substitution of F − for OH − in the crystal structure. Comparing two additives, such as MgF 2 and CaF 2 , MgF 2 showed much more effective for the suppression of phase decomposition in the hydroxyapatite/alumina composites due to the enhanced substitution of F − for OH − . In the case of MgF 2 addition, a relatively high-mechanical properties (flexural strength: ∼170 MPa; Vickers hardness: ∼7 GPa) was obtained compared to MgF 2 -free composites. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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