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首页> 外文期刊>European Journal of Glass Science and Technology, PartB. Physics and Chemistry of Glasses >Dielectric spectroscopy of [(Na_2B_4O_7)_(98%)-(Ce_2O_3)_(2%)] and [(Na_2B_4O_7)_(98%)-(MnO)_(2%)] semiconductor glasses
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Dielectric spectroscopy of [(Na_2B_4O_7)_(98%)-(Ce_2O_3)_(2%)] and [(Na_2B_4O_7)_(98%)-(MnO)_(2%)] semiconductor glasses

机译：[（Na_2B_4O_7）_（98％）-（Ce_2O_3）_（2％）]和[（Na_2B_4O_7）_（98％）-（MnO）_（2％）]半导体玻璃的介电谱

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Measurements arereported on the ac electrical conductivity and dielectric constant of some sodium tetraborate glasses as a pure sample and samples containing 2 mol% Cr_2O_3 and 2 mol% MnO, respectively. Measurements have been made at frequencies of 0.1, 1, 10, 20 and 100 kHz from room temperature up to 600 K. The real and imaginary parts of the dielectric constant are calculated and fitted to master curves. These curves are expressed as a sum of the electrical conductivity, epsilon_(infinity) and a relaxation process. Cole-Cole approximation is used to describe the relaxation parameters From the shift factors the activation diagram was drawn and interpreted as different ion mobility mechanisms.
机译：报告了一些纯硼酸钠玻璃样品和分别含有2 mol％Cr_2O_3和2 mol％MnO的样品的交流电导率和介电常数的测量结果。从室温到最高600 K的频率，都在0.1、1、10、20和100 kHz的频率下进行了测量。计算出介电常数的实部和虚部，并将它们拟合到主曲线上。这些曲线表示为电导率，ε_（无穷大）和弛豫过程的总和。 Cole-Cole逼近用于描述弛豫参数。根据位移因子，绘制了激活图并将其解释为不同的离子迁移率机制。

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