Development of new biodegradable implant materials based on the intermetallic compounds
| Project/Area Number |
24360290
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Partial Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Structural/Functional materials
|
|---|
| Research Institution | Osaka University |
|---|
Principal Investigator |
HAGIHARA KOJI 大阪大学, 工学(系)研究科(研究院), 准教授 (10346182)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
NAKANO Takayoshi 大阪大学, 大学院工学研究科, 准教授 (30243182)
|
|---|
| Project Period (FY) |
2012-04-01 – 2015-03-31
|
| Project Status |
Completed (Fiscal Year 2014)
|
| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2012: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
|
|---|
| Keywords | 生体内溶解性材料 / Mg合金 / Ca合金 / 金属間化合物 / 溶解挙動 / 生体親和性 / 力学特性 / 溶解性 / インプラント / 生体材料 / Zn合金 |
|---|
| Outline of Final Research Achievements |
Development of biodegradable metallic implants that eliminate the need of a second operation for removal has been strongly desired. As a new candidate, we focused the use of intermetallic compounds. In intermetallic compounds, different atomic species occupy designated lattice sites, and are typically held together by strong bonds. The variations in bond properties between the varying atomic species were expected to control the degradation behavior of the material. In this study we focused on the Ca-Mg-Si and Ca-Mg-Zn ternary systems. As a result, the control of the degradation behavior by forming compounds was actually accomplished as expected. Especially, in Ca-Mg-Zn compounds, the formation of Zn-containing oxide as a protective layer against corrosion on the specimen surfaces was found to strongly affect their corrosion properties.
|
Report
(4 results)
Research Products
(16 results)
