Results 71 to 80 of about 6,473,156 (248)

Effect of Sintering Conditions on the Electrical Properties of Lead-Free Piezoelectric Potassium Sodium Niobate-Based Ceramics

, 2022
Lead-free piezoelectric 0.92(K0.445Na0.5Li0.05)NbO3-0.08BaZrO3 (KNLN-BZ) ceramics were prepared via conventional sintering. Single-step, 2-step and 3-step temperature-controlled conditions were designed.
Yi Quan, Jian Zhuang, Yan Tang, Kun Zheng, Wei Ren, Jinyan Zhao, Zhe Wang, Gang Niu, Lingyan Wang   +8 more
core   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

Advanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang, Jianxiang Zhao, Zhaoqi Chen, Hao Gong, Yinsen Yan, Junlei Tao, Yong Yang   +6 more
wiley   +1 more source

Large Room-Temperature Electrocaloric Effect in Lead-Free Relaxor Ferroelectric Ceramics with Wide Operation Temperature Range

In order to obtain large room-temperature electrocaloric effect (ECE) and wide operation temperature range simultaneously in lead-free ceramics, we proposed designing a relaxor ferroelectric with a Tm (the temperature at which the maximum dielectric ...
Shengguo Lu, Bo Liang, Xiaobo Zhao, Zhiyong Zhou   +3 more
core   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Dielectric properties of Na0.25K0.25Bi0.5TiO3 lead-free ceramics

Acta Physica Sinica, 2006
Na0.25K0.25Bi0.5TiO3(NKBT50)lead-free ceramics were prepared by solid-state reaction. The dielectric property of the ceramics was investigated in the lemperature range from room temperature to 400℃. Our results show that there exists a dielectric anomaly in the vicinity of 70℃ for the unpoled ceramics sintered in air, which will disappear after the ...
null Zhao Su-Chuan, null Li Guo-Rong, null Zhang Li-Na, null Wang Tian-Bao, null Ding Ai-Li   +4 more
openaire   +1 more source

Potassium Sodium Niobate-Based Lead-Free Piezoelectric Multilayer Ceramics Co-Fired with Nickel Electrodes

, 2015
Although lead-free piezoelectric ceramics have been extensively studied, many problems must still be overcome before they are suitable for practical use.
Akira Ando, Hiroyuki Hayashi, Masahiko Kimura, Noriyuki Kubodera , Hideki Ishii, Suetake Omiya, Shinichiro Kawada   +6 more
core   +1 more source

‐based lead‐free ceramics

, 2022
Innovative cooling technologies are recognized by many industries as a crucial part of their system design. A large electrocaloric effect (ECE) and extended working temperature are the key issues hindering the realization of electrocaloric ...
Yudong Hou, Linjing Liu, Kodumudi Venkataraman, Lalitha, Zheng, Mupeng, Hou, Yudong, Kodumudi Venkataraman Lalitha, Yunfei Chang, Zhu, Mankang, Chang, Yunfei, Rui Xue, Lovro Fulanovic, Wei, Qiumei, Liu, Linjing, Mupeng Zheng, Fulanovic, Lovro, Qiumei Wei, Mankang Zhu, Xue, Rui   +17 more
core   +1 more source

Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System

Advanced Engineering Materials, EarlyView.
Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner, Anna Sophie Jelinek, Velislava Terziyska, Peter Wagatha, Wolfram Knabl, Christian Mitterer, Helmut Clemens, David Holec   +7 more
wiley   +1 more source

High Energy Storage and Excellent Thermal Stability in Ternary (1−x)[0.94(Bi0.5Na0.5)TiO3‐0.06BaTiO3]‐xCa(Mg1/3Nb2/3)O3 Lead‐Free Ferroelectric Ceramics

Advanced Electronic Materials
In this work, a new type of ternary lead‐free ferroelectric ceramics (1−x)[0.94(Bi0.5Na0.5)TiO3‐0.06BaTiO3]‐xCa(Mg1/3Nb2/3)O3 is synthesized by traditional solid‐state reaction method (x = 0.02, 0.04, 0.06, 0.07, 0.08, 0.10, and 0.15).
Haiyan Kuang, Xiang He, V'yunov Oleg, Dongfang Pang   +3 more
doaj   +1 more source

Transferring lead-free piezoelectric ceramics into application

Journal of the European Ceramic Society, 2015
After twenty years of partly quiet and ten years of partly enthusiastic research into lead-free piezoceramics there are now clear prospects for transfer into applications in some areas. This mimics prior research into eliminating lead from other technologies that resulted in restricted lead use in batteries and dwindling use in other applications.
Rödel, Jürgen, Webber, Kyle G., Dittmer, Robert, Jo, Wook, Kimura, Masahiko, Damjanovic, Dragan   +5 more
openaire   +2 more sources