2010 Fiscal Year Final Research Report
A study on the growth and dissolution of crystals in a peritectic system
| Project/Area Number |
19560750
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Metal making engineering
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
MAIWA Koji National Institute for Materials Science, 情報通信材料研究萌芽ラボ, 主任研究員 (10343849)
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| Co-Investigator(Kenkyū-buntansha) |
木村 秀夫 独立行政法人物質・材料研究機構, 情報通信材料研究萌芽ラボ, グループリーダー (50343843)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 包晶 / 核形成 / 結晶成長 / 準安定 |
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| Research Abstract |
We aimed to elucidate the favorable conditions and mechanisms to peritectic microstructure on the basis of the in situ observations of the solidification processes in Sr(NO3)2-H2O system. Although α and β phases are stable at above and below peritectic temperature, respectively, α phase nucleated initially at any temperature and β phase formed on the preexistent α phase. However, once β phase appeared, it grew much faster than α phase and envelop the α phase. These results show that contrary features in nucleation and growth of the two phases induce the peritectic microstructure.
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