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首页> 外文期刊>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 >Bi precipitates in Na2O-B2O3 glasses
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Bi precipitates in Na2O-B2O3 glasses

机译：Bi在Na2O-B2O3玻璃中沉淀

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摘要

Bi particles of different sizes were produced in Na2O-B2O3 glasses by melt quenching and heat treatment technique. Melting temperature of Bi particles was measured by differential scanning calorimetry and X-ray diffraction. Measured melting temperatures of Bi particles are lower than bulk Bi melting temperature. Results of transmission electron microscopy were analyzed for the dependence of melting temperature on particle radius. The pressure and surface energy effect on melting temperature is estimated. The melting behavior of Bi particles in Na2O-B2O3 glasses depends on the difference in the interfacial energies between the solid particle/glass and liquid particle/glass, and liquid particle/glass, sigma(sm)-sigma(lm) which is estimated to be 255 x 10(-3) J m(-2).
机译：通过熔融淬火和热处理技术在Na2O-B2O3玻璃中生成了不同尺寸的Bi颗粒。通过差示扫描量热法和X射线衍射测定Bi粒子的熔融温度。测得的Bi粒子的熔化温度低于整体Bi熔化温度。分析了透射电子显微镜的结果，以了解熔化温度对颗粒半径的依赖性。估计压力和表面能对熔融温度的影响。 Bi颗粒在Na2O-B2O3玻璃中的熔化行为取决于固体颗粒/玻璃与液体颗粒/玻璃与液体颗粒/玻璃之间的界面能之差，sigma（sm）-sigma（lm）估计为是255 x 10（-3）J m（-2）。

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