2012 Fiscal Year Final Research Report
Measurement of structural changes in metallic glass under super rapid heating and the application
| Project/Area Number |
23656448
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Material processing/treatments
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Keywords | 非平衡プロセス / 金属ガラス / 急冷凝固 / 超急速加熱 / 構造変化 |
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| Research Abstract |
The transformation behavior of metallic glass was measured during rapid heating with the experimental apparatus developed in this study. The thin film specimen wasrapidly heated by resistance heating and measurement methods were developed on the temperature, electric resistance, stress relaxation, glass transition behavior. The fundamental study was also carried on the viscous behavior of Zr-based glassy alloy under rapid heating. During the rapid heating, glass transition temperature Tg and crystallization temperature Tx increase with increasing heating rate. Furthermore, the normal viscosity decreases with increasing heating rate. This phenomenon contributes to high throughput nanoimprinting. High throughput nanoimprinting system was developed in this study. The system for metallic glasses is effective for mass production.
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