Anelasticity of Glass: II, Internal Friction and Sodium Ion Diffusion in Tank Plate Glass, A Typical Soda‐Lime‐Silica Glass
Anelasticity of Glass: II, Internal Friction and Sodium Ion Diffusion in Tank Plate Glass, A Typical Soda‐Lime‐Silica Glass
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玻璃的滞弹性：II，罐板玻璃（典型的钠钙硅玻璃）中的内摩擦和钠离子扩散
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发表时间：
1951
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影响因子：
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通讯作者：
J. V. Fitzgerald
中科院分区：
文献类型：
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作者：
J. V. Fitzgerald
进一步讨论了在室温附近观察到的罐板玻璃在秒数量级的时间内的内摩擦峰，并将其归因于钠离子扩散。最大内摩擦温度随振动频率的变化而变化，活化能约为16 kg. cal。每摩尔空气冷却玻璃纤维。同样地，冷冻玻璃的电阻率的活化能约为16 kg. cal。虽然钠离子扩散和耐碱的活化能约为21 kg. cal。，也可以适当地解释为内摩擦峰是由钠离子扩散引起的。内摩擦峰比单一松弛机制所能解释的要宽得多。然而，松弛机制的分散性与二氧化硅网络中公认的随机性理论是一致的。
The internal-friction peak observed near room temperature in tank plate glass at a period of the order of seconds and previously attributed to sodium ion diffusion is further discussed. The temperature of maximum internal friction is shown to vary with the frequency of vibration with an activation energy of about 16 kg.-cal. Per mole for air-chilled glass fibers. Likewise, the activation energy for the electrical resistivity of the chilled glass is about 16 kg.-cal. Although the activation energy for sodium ion diffusion and alkali durability is about 21 kg.-cal., it too can be properly interpreted to confirm that the internal friction peak is caused by sodium ion diffusion. The internal friction peak is much broader than can be accounted for by a single relaxation mechanism. However, a dispersion of relaxation mechanisms is consistent with the accepted theory of randomness in the silica network.