| A Modified Glass Formation Criterion for Various Glass Forming Liquids with Higher Reliability |
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| 作者姓名： | X. H. Du J. C. Huang |
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| 作者单位： | [1]Institute of Materials Science and Engineering, National Sun Yat-Sen University, Kaohsiung 804 [2]Department of Materials Engineering, Shenyang Institute of Aeronautical Engineering, Shenyang, 110034 |
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| 基金项目： | Supported by the National Science Council of Taiwan under Grant No 94-2216-E-110-010, and the Post-Doctoral Sponsorship from NSC under Grant No 95-2816-E-110-001. |
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| 摘 要： | A modified indicator of the glass forming ability （GFA） from the previous 7 = Tx/（Tl ＋ Tg） for various glass forming liquids is proposed based on a conceptual approach which combines more acceptable physical metallurgy views in terms of the time-temperature-transformation diagrams. It is found that the glass forming ability for glass forming liquids is closely associated mainly with two factors, i.e. （2Tx - Tg） and Tl （wherein Tx is the onset crystallization temperature, Tg the glass transition temperature, and Tl the liquidus temperature）, and could be predicated by a unified parameter γm defined as （2Tx - Tg）/Tl. This approach is confirmed and validated by experimental data in various glass forming systems including oxide glasses, cryoprotectants and metallic glasses, which all shows a higher reliability when their glass forming ability is predicted by the modified parameter.
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| 关 键 词： | 玻璃 成形能力 高稳定性 液态 |
| 收稿时间： | 2007-1-20 |
| 修稿时间： | 2007-01-20 |
A Modified Glass Formation Criterion for Various Glass Forming Liquids with Higher Reliability |
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| X. H. Du J. C. Huang.A Modified Glass Formation Criterion for Various Glass Forming Liquids with Higher Reliability[J].Chinese Physics Letters,2007,24(5):1335-1338. |
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| Authors: | X H Du J C Huang |
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| Institution: | Institute of Materials Science and Engineering, National Sun Yat-Sen University, Kaohsiung 804Department of Materials Engineering, Shenyang Institute of Aeronautical Engineering, Shenyang, 110034 |
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| Abstract: | |
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| Keywords: | 71 23 Cq 81 05 Kf |
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