Results 1 to 10 of about 1,217 (108)

Textured piezoelectric ceramics with reduced grain size for high-frequency transducer applications [PDF]

open access: yesNature Communications
Textured piezoelectric ceramics are considered promising next-generation piezoelectric materials, offering single-crystal-like high piezoelectric performance and low production cost. However, the large grain size of textured ceramics (15 ~ 40 μm) lead to
Yizhou Xiao   +7 more
doaj   +2 more sources

Single-Beam Acoustic Tweezer Prepared by Lead-Free KNN-Based Textured Ceramics [PDF]

open access: yesMicromachines, 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
doaj   +2 more sources

High performance relaxor ferroelectric textured ceramics for electrocaloric refrigeration [PDF]

open access: yesNature Communications
Relaxor ferroelectric ceramics have emerged as promising candidates for electrocaloric cooling systems due to their relatively higher heating and cooling capacities.
Xuexin Li   +14 more
doaj   +2 more sources

Tailoring the Anisotropic Oxygen Transport Properties in Bulk Ceramic Membranes Based on a Ruddlesden–Popper Oxide by Applying Magnetic Fields [PDF]

open access: yesAdvanced Science
Textured 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
doaj   +2 more sources

Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientation [PDF]

open access: yesNature 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
doaj   +2 more sources

Ultrahigh thermal stability and piezoelectricity of lead-free KNN-based texture piezoceramics [PDF]

open access: yesNature Communications
The 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
doaj   +2 more sources

High Piezoelectric Performance of KNN-Based Ceramics over a Broad Temperature Range through Crystal Orientation and Multilayer Engineering [PDF]

open access: yesMolecules
Uninterrupted 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
doaj   +2 more sources

Grinding performance of micro-texured grinding wheel on different ceramic materials

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
The grinding performance of micro-textured grinding wheel with arrayed micro-hole and common grinding wheel are compared through experiments on alumina, aluminum nitride, zirconia and silicon nitride ceramic materials.
Yanling LIAO   +3 more
doaj   +3 more sources

Effect of sintering aids on microstructure and properties of textured SiC ceramics prepared in 6 T

open access: yesJournal 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
doaj   +1 more source

Enhanced piezoelectric properties and temperature stability in KNN-based textured ceramics

open access: yesJournal 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
doaj   +1 more source

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