A Review on Additive Manufacturing of Functional Gradient Piezoceramic

Abstract

Functionally graded piezoceramics are a new generation of engineering materials whose final properties are determined by a chemical composition gradient (volume distribution), material microstructure, or design characteristics. This review analyzes possible ways to create a functionally graded piezoceramic material (gradient chemical composition, gradient porosity—controlled and disordered porosity) by additive manufacturing methods, to control such materials’ functional characteristics. An analysis of the creation of gradient piezoceramics using binder jetting technology is presented in more detail. The review shows that today, the creation of functional gradient piezoceramics by additive manufacturing is a poorly-studied but promising research area, due to the rapid development of the additive manufacturing market and their unique features in shaping parts.

A novel adjustable magnetorheological fluid gradient material of low frequency vibration isolation: a theoretical and experimental study

“…The vibration transfer characteristics usually use the vibration level difference as an index [15,16], which can visually represent the attenuation of the vibration energy generated by external excitation at different frequencies of the study object, so it is necessary to investigate the vibration transfer characteristics of MRF under the action of TMF. In this section, we first determine the suitable vibration transfer characteristics index and further calculate the vibration transfer characteristics of MRF based on mechanical impedance to obtain the vibration transfer characteristics of MRF.…”

“…The current research results show that impedance gradient materials have good vibration energy attenuation effects and are wellsuited for vibration control applications. However, impedance gradient materials have the problem of non-adjustable parameters after preparation, which limits the improvement of their performance and further expansion of their use [15,16]. As a magnetically controlled smart material, the mechanical impedance of the MRF can be adjusted by adjusting the magnetic induction strength of the external magnetic field.…”

Sensitivity analysis of a layered piezoelectric system using ZFEM

“…Ink deposition offers advanced layer by layer manufacturing capabilities where volume distribution gradients can be adjusted to create specific microstructures with spatially varying anisotropy. 6 Another benefit of this technology is that multilayer dielectric materials offer higher capacitance and lower impedance. 7 The mathematical expression that characterizes any elastic piezoelectric material is a linear partial differential equation (PDE) that couples the voltage potential field with the mechanical displacement through the piezoelectric coefficient tensor.…”

“…Arguably, both fields can yield an optimized output where the former requires knowledge on which set of parameters to use, the latter calls for numerical techniques able to predict rates of change of the system as a function of its geometry. Ink deposition offers advanced layer by layer manufacturing capabilities where volume distribution gradients can be adjusted to create specific microstructures with spatially varying anisotropy 6 . Another benefit of this technology is that multilayer dielectric materials offer higher capacitance and lower impedance 7…”

Development of TiO2/ZrO2 Multi-Material Obtained from Ceramic Pastes for Material Extrusion

“…Products that have multi-material structures possess enhanced performance [24] and are utilized in various fields, including the automotive industry, aerospace engineering, biomedicine, and the defense industry [25,26]. The MEX can be employed to produce ceramic multi-materials [27,28]. This technology does not have some limitations that are inherent to other AM methods of producing ceramic multi-materials [29].…”