| Budget Amount *help |
¥26,390,000 (Direct Cost: ¥20,300,000、Indirect Cost: ¥6,090,000)
Fiscal Year 2012: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2011: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2010: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
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| Research Abstract |
Due to technical difficulties in experiments the atomic-scale physical mechanisms of intergranular failure that limits the structural lifetime of nuclear materials have been theorized primarily by computer simulations in the past decade. However, since simulations are always based on assumptions and numerical approximations, the obtained results are ultimately in need of assessments and validations by experiments. To overcome the dilemma, in the present study experimental assessments have been carried out on the inputs and outputs of first principle calculations. A technical challenge is how to measure the ideal decohesion strength of grain boundaries without including the effect of local stress concentration due to pile-up dislocations.
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