Finally, for the discovery of new piezoelectric materials, this paper presents the role of the framework, and recommends the search of framework crystal structure, because the characteristic of the mechanism exists on the framework of the crystal structure....
Piezoelectric materials, which convert mechanical energy to electrical energy or vice versa, are at the heart of numerous electromechanical applications, such as piezoelectric actuators, ultrasonic medical imaging, structural health monitoring and mechanical energy harvesting, to name a few1,2,3. To impr...
Piezocatalysis, a newly emerging catalysis technology that relies on the piezopotential and piezoelectric properties of the catalysts, is attracting unprecedented research enthusiasm for applications in energy conversion, organic synthesis, and environmental remediation. Despite the rapid development in the past...
However, both mechanisms cannot fully explain the piezocatalytic process: the electrons generated by the piezoelectric effect will not spontaneously participate in the piezocatalysis, while not all piezoelectric materials have an appropriate energy band structure. In this work, displacement current and the ...
Due to the ubiquitous kinetic energy in our daily life, energy harvesters based on the mechanisms of piezoelectric [[40], [41], [42], [43], [44], [45]], electromagnetic [[46], [47], [48]], and triboelectric [[49], [50], [51], [52], [53], [54], [55]] emerge to sca...
Fig. 2. Inverse piezoelectric effects. Table 1. Mechanical parameters of piezoelectric materials. MaterialTypeDensity (g/cm3)Elastic modulus E1 (GPa)Poisson’s ratio νPiezoelectric coefficient d31 (m/V) Ceramic composites PZT34 7.8 62 0.31 −320 × 10−12 Crystalline PMN-PT35 7.78 14 −...
Additionally, one of the materials, either positive or negative, can be selected from a group of piezoelectric materials to acquire additional mechano-electrical energy conversion through combination of both local triboelectric and piezoelectric effects. Here, piezoelectric PVDF polymer is selected to form...
YANG Gang, YUE Zhen-Xing, LI Long-Tu ,.Research Progress on the Characteristics and Mechanism of Applied Field-Induced Fatigue in Piezoelectric Ceramics.[J];Journal of Inorganic Materials,2007-01YANG Gang, YUE Zhen-Xing, LI Long-Tu. Research progress on the characteristics and mechanism of ...
Piezoelectric stepper motor with direct coupling mechanism to achieve high efficiency and precise control of motion The paper describes a piezoelectric motor that combines the merits of piezoelectric materials, such as high power density generated at electromechanical re... AE Glazounov,S Wang,QM Zhang...
dissipated through the resistance in the manner of FIG. 4A. Although the examples of the damping mechanism given above mention only piezoelectric materials, it is understood that ferroelectric materials are also usable and may have additional advantages because of the higher piezoelectric constants ...