| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
The formation mechanism of anglesite from galena under sulfuric acid condition was investigated by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), and a series of positron annihilation experiments. Nanovoids dominantly surrounded by surfer atoms were found in grain boundaries among galena and anglesite nanocrystals upon the formation of anglesite nanocrystals. The concentration of nanovoid increases with increasing the degree of anglesite formation.
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