Results 1 to 10 of about 1,190 (145)

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

Nature 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, Shuai Yang, Mingwen Wang, Yaolin Wang, Tao Li, Chunchun Li, Jinglei Li, Fei Li   +7 more
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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, Chunlong Fei, Wei Ren, Lingyan Wang, Jinyan Zhao, Jian Zhuang, Tianlong Zhao, Zhaoxi Li, Chenxi Zheng, Xinhao Sun, Kun Zheng, Zhe Wang, Matthew Xinhu Ren, Gang Niu, Nan Zhang, Tomoaki Karaki, Zhishui Jiang, Li Wen   +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, Jung-Soo Kim, Seung-Hyun Kim, San Kwak, Bumjoo Kim, In-Su Kim, Sahn Nahm   +6 more
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High performance relaxor ferroelectric textured ceramics for electrocaloric refrigeration [PDF]

Nature Communications
Relaxor ferroelectric ceramics have emerged as promising candidates for electrocaloric cooling systems due to their relatively higher heating and cooling capacities.
Xuexin Li, Jinglei Li, Yang Li, Xuechen Liu, Shuai Yang, Jie Wu, Dingwei Hou, Jinjing Zhang, Haijun Wu, Yang Zhang, Xiangdong Ding, Jun Sun, Shujun Zhang, Hongliang Du, Fei Li   +14 more
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Microstructure and high-temperature strength of textured and non-textured ZrB2 ceramics

Science and Technology of Advanced Materials, 2014
Zirconium diboride (ZrB2) ceramic possesses a unique combination of nice mechanical performance, high melting point (> 3000 °C) and great high-temperature oxidation resistance (up to 1600 °C), which makes it a promising material system for ever ...
Wen-Wen Wu, Yoshio Sakka, Mehdi Estili
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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 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, Motohide Matsuda, Zhijun Zhao, Frank Steinbach, Bernd Breidenstein, Hilke Petersen, Andreas Graff, Marc Widenmeyer, Anke Weidenkaff, Armin Feldhoff   +9 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, Dong Liu, Xiaoming Shi, Shiqing Deng, Jiecheng Liu, Li-Yu Wei, Zi-Qi Yang, Qi Wang, Bo-Ping Zhang, Houbing Huang, Shujun Zhang, Jing-Feng Li   +11 more
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Ultrahigh thermal stability and piezoelectricity of lead-free KNN-based texture piezoceramics [PDF]

Nature 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, Jinfeng Lin, Yuxuan Yang, Zhihao Zhao, Xiaoming Shi, Guanglong Ge, Jin Qian, Cheng Shi, Guohui Li, Simin Wang, Yang Zhang, Peng Li, Bo Shen, Zhengqian Fu, Haijun Wu, Houbing Huang, Fei Li, Xiangdong Ding, Jun Sun, Jiwei Zhai   +19 more
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High Piezoelectric Performance of KNN-Based Ceramics over a Broad Temperature Range through Crystal Orientation and Multilayer Engineering [PDF]

Molecules
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, Yunting Li, Rui Zhao, Yan Zhao, Jiaqi Zhao, Wangfeng Bai, Jiwei Zhai, Peng Li   +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, Ziqiang Yin, Zhijia Zhao, Jianbo Yu, Zhongming Ren, Gang Yu, Guanglei Zhang   +6 more
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