In-situ observation of crack propagation behavior of ceramics by scanning probe microscope
| Project/Area Number |
21686062
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (A)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Inorganic materials/Physical properties
|
|---|
| Research Institution | Yokohama National University |
|---|
Principal Investigator |
TATAMI Junichi 横浜国立大学, 環境情報研究院, 准教授 (30303085)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥25,870,000 (Direct Cost: ¥19,900,000、Indirect Cost: ¥5,970,000)
Fiscal Year 2011: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2010: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2009: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
|
|---|
| Keywords | セラミックス / 破壊 / 窒化ケイ素 / 走査型プローブ顕微鏡 / その場観察 / 磁歪材料 |
|---|
| Research Abstract |
Small testing machine installed in scanning probe microscope was developed. A one-sided Chevron notched specimen was used for for stable fracture. A crack in the Si_3N_4 ceramics did not always propagate continuously from the tip of the crack. It was also observed that some of the micro cracks discontinuously formed and they connected. In Terfenol-D, which is a magnetostrictive material, magnetic domain structure near the crack tip was changed with crack propagation.
|
Report
(4 results)
Research Products
(14 results)
