Single-Beam Acoustic Tweezer Prepared by Lead-Free KNN-Based Textured Ceramics [PDF]
Micromachines, 2022 Acoustic tweezers for microparticle non-contact manipulation have attracted attention in the biomedical engineering field. The key components of acoustic tweezers are piezoelectric materials, which convert electrical energy to mechanical energy. The most
Yi Quan +17 more
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Recent Developments in (K, Na)NbO3-Based Lead-Free Piezoceramics [PDF]
Micromachines(K0.5Na0.5)NbO3 (KNN)-based ceramics have been extensively investigated as replacements for Pb(Zr, Ti)O3-based ceramics. KNN-based ceramics exhibit an orthorhombic structure at room temperature and a rhombohedral–orthorhombic (R–O) phase transition ...
Geun-Soo Lee +6 more
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High performance relaxor ferroelectric textured ceramics for electrocaloric refrigeration [PDF]
Nature CommunicationsRelaxor ferroelectric ceramics have emerged as promising candidates for electrocaloric cooling systems due to their relatively higher heating and cooling capacities.
Xuexin Li +14 more
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Ultrahigh thermal stability and piezoelectricity of lead-free KNN-based texture piezoceramics [PDF]
Nature CommunicationsThe contradiction between high piezoelectricity and uniquely poor temperature stability generated by polymorphic phase boundary is a huge obstacle to high-performance (K, Na)NbO3 -based ceramics entering the application market as Pb-based substitutes. We
Lihui Xu +19 more
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Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientation [PDF]
Nature Communications(K,Na)NbO3-based ceramics are deemed among the most promising lead-free piezoelectric materials, though their overall piezoelectric performance still lags behind the mainstream lead-containing counterparts.
Li-Feng Zhu +11 more
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Tailoring the Anisotropic Oxygen Transport Properties in Bulk Ceramic Membranes Based on a Ruddlesden–Popper Oxide by Applying Magnetic Fields [PDF]
Advanced ScienceTextured Nd2NiO4+δ bulk ceramic membranes are fabricated via slip casting in a 0.9 T magnetic field generated by neodymium magnets. This process aligns the oxide grains with their easy‐magnetization c‐axis parallel to the applied magnetic field ...
Giamper Escobar Cano +9 more
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High Piezoelectric Performance of KNN-Based Ceramics over a Broad Temperature Range through Crystal Orientation and Multilayer Engineering [PDF]
MoleculesUninterrupted breakthroughs in the room temperature piezoelectric properties of KNN-based piezoceramics have been witnessed over the past two decades; however, poor temperature stability presents a major challenge for KNN-based piezoelectric ceramics in ...
Guangrui Lu +7 more
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Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 T
Journal of Asian Ceramic Societies, 2021 C-axis textured α-SiC ceramics were prepared by gel-casting in a strong magnetic field of 6 T and subsequent sintering at 1950 °C for 2 h. The effects of sintering aids on the microstructure and properties of textured SiC ceramics were discussed. Results
Zhigang Yang +6 more
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Enhanced piezoelectric properties and temperature stability in KNN-based textured ceramics
Journal of Advanced Dielectrics, 2022 Considering the advantages of high Curie temperature and environment-friendly nature of KNN piezoelectric ceramics, the limitation of weak piezoelectric response and their temperature sensitivity to applications is worth exploring. Herein, the textured (
Yan Lin +8 more
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A design for preparation of textured piezoelectric ceramics based on the phase-field simulation
Journal of Advanced Dielectrics, 2022 To solve the problem of directional arrangement of small template particles, we designed a lamination technique for the preparation of dense ceramics with high texture degree based on the phase-field simulation.
Yongmei Zhang, Liangliang Liu
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