GLASS TRANSITION T_g AND THERMAL EXPANSION IN GLASSY MATERIALS MEASURED BY TIME-RESOLVED X-RAY DIFFRACTION

机译：用时间分辨X射线衍射测量的玻璃材料的玻璃化转变温度T_g和热膨胀

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We have determined changes in thermal expansion coefficient α_(th) and relaxation behavior of glassy materials by monitoring the first maximum of the diffraction pattern, obtained in transmission during in-situ heating in a high-intensity high-energy monochromatic light beam. The excess quenched-in free-volume ΔV_f and its relaxation kinetics can also be determined. Like metallic glasses, oxide glasses also show the glass transition T_g with excess free-volume trapped during cooling. The results allow quantitative determination of T_g by diffraction that compares well with T_g obtained by calorimetry as was previously reported for metallic glasses and the relaxation of excess free volume.

机译：我们已经通过监测在高强度高能单色光束中原位加热过程中透射获得的衍射图的第一个最大值，确定了玻璃质材料的热膨胀系数α_（th）和弛豫行为的变化。也可以确定过量的淬火自由体积ΔV_f及其松弛动力学。像金属玻璃一样，氧化物玻璃也显示出玻璃化转变温度T_g，在冷却过程中捕获了过多的自由体积。结果允许通过衍射定量测定T_g，该衍射与通过量热法获得的T_g相当好，如先前报道的金属玻璃和过剩自由体积的弛豫。

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来源
《International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials(ISMANAM 2004); 20040822-26; Sendai(JP)》|2004年|P.225-228|共4页
会议地点 Sendai(JP)
作者
K.Ota; K.Hajlaoui; G.Vaughan; M.Di Michiel; D.V.Louzguine; A.Inoue; A.R.Yavari;
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作者单位

Euronano-LTPCM-CNRS Institut National Polytechnique de Grenoble, BP75, 38402 St-Martin-d'Heres Campus France;

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会议组织
原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
glass transition; amorphous materials; synchrotron radiation; thermal expansion; free volume; amorphisation; thermal analysis; liquid quenching;

机译：玻璃化转变;非晶材料;同步辐射;热膨胀;自由体积;非晶化;热分析;液相淬火;

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1. Glass transition T_g, thermal expansion, and quenched-in free volume DELTA V_f in pyrex glass measured by time-resolved X-ray diffraction [J] . K. Ota, W.J. Botta, G. Vaughan Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2005,第1期

机译：通过时间分辨X射线衍射测量派热克斯玻璃中的玻璃化转变温度T_g，热膨胀和淬火自由体积DELTA V_f
2. Glass transition, thermal expansion and relaxation in B2O3 glass measured by time-resolved X-ray diffraction [J] . Botta WJ, Ota K, Hajlaoui K, Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites . 2008,第2a9期

机译：通过时间分辨X射线衍射测量B2O3玻璃的玻璃化转变，热膨胀和弛豫
3. Thermal expansion of select M_(n+1)AX_n (M= early transition metal, A = A group element, X=C or N) phases measured by high temperature x-ray diffraction and dilatometry [J] . T. H. Scabarozi, S. Amini, O. Leafier, Journal of Applied Physics . 2009,第1期

机译：通过高温X射线衍射和膨胀法测量的选定M_（n + 1）AX_n（M =早期过渡金属，A = A族元素，X = C或N）相的热膨胀
4. GLASS TRANSITION T_g AND THERMAL EXPANSION IN GLASSY MATERIALS MEASURED BY TIME-RESOLVED X-RAY DIFFRACTION [C] . K.Ota, K.Hajlaoui, G.Vaughan, International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials . 2005

机译：玻璃过渡T_G和通过时间分辨X射线衍射测量的玻璃材料中的热膨胀
5. Synchrotron x-ray diffraction studies of phase transitions and mechanical properties of nanocrystalline materials at high pressure. [D] . Prilliman, Stephen Gerald. 2003

机译：高压下纳米晶体材料的相变和力学性能的同步加速器X射线衍射研究。
6. Thermal expansion of Pd-based metallic glasses by ab initio methods and high energy X-ray diffraction [O] . Simon Evertz, Denis Music, Volker Schnabel, -1

机译：从头开始方法和高能X射线衍射法对Pd基金属玻璃的热膨胀
7. Glassy State and Glass Transition-Its Elucidation and New Applications. II. Thermal Analysis of Polymeric Materials by Modulation Calorimetry around the Glass Transition Temperature. [O] . Yasuo SARUYAMA 1996

机译：玻璃状态和玻璃过渡 - 其阐明和新应用。 II。通过玻璃化转变温度调制量热分析聚合物材料的热分析。
8. Energy dispersive x-ray diffraction study of glassy Bi2Sr2CaCu2Ox filaments produced by gas-jet fiberization. [R] . J. P. Hammonds 1991

机译：通过气体喷射纤维化生产的玻璃状Bi2sr2CaCu2Ox长丝的能量色散X射线衍射研究。

GLASS TRANSITION T_g AND THERMAL EXPANSION IN GLASSY MATERIALS MEASURED BY TIME-RESOLVED X-RAY DIFFRACTION

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