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AGING MECHANISM OF PH SENSING GLASS IN A HIGH TEMPERATURE ENVIRONMENT

机译:高温环境中PH传感玻璃的老化机理

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The aging process of a pH sensing glass membrane in a high temperature environment wasrnstudied. Based on the complex impedance spectra, simulations were carried out to obtainrnequivalent circuits of the pH sensing glass membrane. Analysis of the simulated equivalentrncircuits indicates two components in the glass membrane, one the surface layer which isrnresponsible for pH sensing and the other is the bulk layer which forms the mechanical structure.rnThe surface layer showed significant change after high temperature aging. Comparison ofrndifferent pH sensing glass showed that a pH sensing glass with lower surface impedance exhibitsrnlonger service life.
机译:研究了pH传感玻璃膜在高温环境下的老化过程。基于复阻抗谱,进行了仿真,以获得pH传感玻璃膜的等效电路。对模拟等效电路的分析表明,玻璃膜中有两个成分,一个是负责pH传感的表面层,另一个是形成机械结构的本体层。该表面层在高温老化后显示出显着变化。比较不同的pH感应玻璃,可以发现具有较低表面阻抗的pH感应玻璃具有更长的使用寿命。

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