Hydroxyapatite coating of bioabsorbable magnesium alloys with a chemical solution deposition
| Project/Area Number |
22760568
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Material processing/treatments
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
HIROMOTO Sachiko 独立行政法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, MANA研究者 (00343880)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | マグネシウム / リン酸カルシウム / コーティング / 化学溶液析出法 / 浸漬試験 / 引張り試験 / 生体材料 / 水酸アパタイト / リン酸八カルシウム / 密着性 / Ca錯体 / 水溶液(化成)処理 / 水溶液処理 / 高耐食性被覆 / 分極試験 |
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| Research Abstract |
A novel chemical solution deposition method was developed for calcium phosphate coating of bioabsorbable Mg/Mg alloys, to control the corrosion and to improve the biocompatibility. Hydroxyapatite (HAp) and octacalcium phosphate (OCP) coatings were formed depending on the pH of treatment solution. HAp and OCP coatings were able to suppress the corrosion of Mg alloy in a medium for 1 year. The HAp-coated Mg alloys showed smaller corrosion rate than the OCP-coated alloy. The HAp coating showed good adhesiveness to the substrate under static tensile stress which gives a slight plastic deformation.
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Report
(4 results)
Research Products
(43 results)
