A statistical picture of dielectric breakdown in solids is presented and discussed in this paper. The morphology selection mechanism is described by the stochastic model or model. The approach is formulated in terms of two functions () and (), which play the role of a free energy and that ...
Dielectric elastomers (DEs) respond to applied electric voltage with a surprisingly large deformation, showing a promising capability to generate actuation in mimicking natural muscles. A theoretical foundation of the mechanics of DEs is of crucial importance in designing DE-based structures and devices....
The dielectric constant of the membranes is determined to maintain the Debye screening length equal to 10−7 m. This value, which is larger than the actual λ in Nafion™ membranes, is utilized to model high surface electrodes that significantly increase the capacity of the electric double...
The maximum Vg that can be applied without dielectric breakdown is ∼2,000 V, which allowed us to reach maximum pressures around 30 kPa; the uncertainty in P is below 5% for all voltages. The deflection of the graphene membranes under applied pressure was determined via interferometric ...
The hydraulic-electric pulsed discharge rock-breaking process is divided into three phases: the breakdown channel formation phase, the plasma channel formation phase, and the plasma shock-wave blasting phase. The shock wave causes both compressive and tensile damage to the rock, but most of the da...
Owing to their high dielectric and piezoelectric constants, piezoelectric ceramics have been used for sensor and actuator applications. The reliability of these materials under service conditions is of major concern. The fatigue life of a poled PZT specimen under mechanical cyclic loading conditions in ...
Linear dielectric-breakdown electrostatics In the case of fracture, the reigning theory for linear elastic materials is linear elastic fracture mechanics. This paper develops the analogous theory, ... Garboczi,J E. - 《Physical Review B Condensed Matter》 被引量: 58发表: 1988年 Fracture Mechanics...
Such breakdown of ergodicity is a type of partitioning process [41] and results in no change in the enthalpy or volume of a system, i.e., it is not a first-order thermodynamic phase transition. However, the loss of ergodicity does entail a loss of configurational entropy since the ...
According to Hays and Kendall’s law [19], it is assumed that the applied load “P” is partially affected by small resultant pressure “W,” which is a function of material under investigation. “W” is thus the minimum applied load required to cause a plastic deformation. Hays and ...
1, the shape of the electron cloud in this crystal field under B depends on the direction of B. If B is parallel to the c-axis of FAP, the expected value of J z of Yb3+ is ca. ± 0.005 ħ, where ħ is Planck’s constant. Similarly, J z of Yb3+ is ca. ± ...