2009 Fiscal Year Final Research Report
Degradation control of bioabsorbable magnesium alloys with anodized films
| Project/Area Number |
20760499
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Material processing/treatments
|
|---|
| Research Institution | National Institute for Materials Science |
|---|
Principal Investigator |
HIROMOTO Sachiko National Institute for Materials Science, 生体材料センター, 主幹研究員 (00343880)
|
|---|
| Project Period (FY) |
2008 – 2009
|
| Keywords | 生体吸収性マグネシウム / 陽極酸化 / 水熱処理 / リン酸カルシウム / 腐食 |
|---|
| Research Abstract |
It is crucial for bioabsorbable magnesium alloys to control the corrosion rate depending on the condition of affected parts. The morphology and composition of anodized films of pure magnesium was then varied with the anodizing voltage and composition of electrolytes. It was revealed that the corrosion rate of pure magnesium in a simulated body fluid noticeably decreased by the incorporation of phosphate ions in the anodized film. On the other hand, the corrosion morphology depended on the porous morphology of the anodized film.
|
