Residual stress and domain switching in freeze cast porous barium titanate

Multilevel Structure Engineered Lead‐Free Piezoceramics Enabling Breakthrough in Energy Harvesting Performance for Bioelectronics

“…[ 6 ] Densities of dense and porous ceramics are shown in Figure S3 (Supporting Information), decreasing with the increase of x . The pore volume v p is calculated by the following Equation 3 [ 23,42 ] and shown in Figure S3 (Supporting Information). $$\[ \begin{array}{*{20}{c}}{{v_p} = \;1 - \frac{{{\rho _{{\rm{porous}}}}}}{{{\rho _{{\rm{dense}}}}}} \times 100\\end{array} \]$$where, ρ porous refers to the density of the porous ceramics and ρ dense refers to the dense KNNS‐BNZ‐Fe one.…”

Rheological, mechanical, and electrical properties of Sr0.7Bi0.2TiO3 modified BaTiO3 ceramic and its composites

“…Correspondingly, the dielectric loss reaches its maximum at a frequency of ∼10 4 , exhibiting a significant hysteresis loss. This behavior can be attributed to the interaction of many large ferroelectric domains and highly coupled dipoles in ferroelectric polymers 67,71 …”

“…This behavior can be attributed to the interaction of many large ferroelectric domains and highly coupled dipoles in ferroelectric polymers. 67,71 The variation of dielectric constant and loss of the composite with temperature is shown in Figure 10B, which was tested at three frequencies of 1, 10, and 1000 kHz, respectively. The overall trend of the dielectric constant decreases with increasing temperature.…”

Colloidal co‐assembly of dual‐phased ceramic/metal particles toward lightweight, hierarchically structured, and mechanically robust alumina foam

“…[1][2][3] At present, a variety of processing methods, including freeze-casting, foam templating, colloidal assembly, and 3D printing, have been explored with varying success for their construction. [4][5][6] To date, particle-stabilized foams have received tremendous attention in the recent years for the fabrication of foamstructured ceramics due to their feasible and convenient processing methodology. 7 In recent years, the necessity for construction of high-performance lightweight structural materials is driving increasing demand for the development of ceramic foams with controllable microstructure and superior mechanical properties.…”

“…Lightweight structural materials with well‐defined and controllable microstructures have attracted tremendous attention because of their promising potential applications such as separation, thermal management, biomaterials, and energy conversion 1–3 . At present, a variety of processing methods, including freeze‐casting, foam templating, colloidal assembly, and 3D printing, have been explored with varying success for their construction 4–6 . To date, particle‐stabilized foams have received tremendous attention in the recent years for the fabrication of foam‐structured ceramics due to their feasible and convenient processing methodology 7 .…”