Dielectric Properties of Ice and Solid D2O
Dielectric Properties of Ice and Solid D2O
复制标题
冰和固体 D2O 的介电特性
DOI：
--
复制
发表时间：
1952
期刊：
影响因子：
--
通讯作者：
R. Cole
中科院分区：
文献类型：
--
作者：
R. Auty;R. Cole
复介电常数已被测量的冰从熔点到−65°C，并为固体D2 O到−35°C，通过结合电桥和瞬态方法。对于这两种情况，色散由简单的德拜公式描述，弛豫时间τ由简单的速率表达式τ = A exp（B/RT）描述。对于冰，A = 5.3×10−16秒，B = 13.2千卡/摩尔;对于固体D2 O，A = 7.7×10−16秒，B = 13.4千卡/摩尔。冰的平衡介电常数在0°C时为91.5，并在较低温度下增加;固体D2 O的值仅略小。讨论了为减小样品中的空隙和直流电导引起的误差而采取的措施。
Complex dielectric constants have been measured for ice from the melting point to −65°C, and for solid D2O to −35°C, by a combination of bridge and transient methods. For both, the dispersion is described by the simple Debye formula, and the relaxation times τ by the simple rate expression τ = A exp(B/RT). For ice, A = 5.3×10−16 sec, B = 13.2 kcal/mole; and for solid D2O, A = 7.7×10−16 sec, B = 13.4 kcal/mole. The equilibrium dielectric constant for ice is 91.5 at 0°C and increases at lower temperatures; the values for solid D2O are only slightly smaller. Measures taken to minimize errors from voids in the sample and direct current conductance are discussed.