Ferroelectric-relaxor crossover induce large electrocaloric effect with ultrawide temperature span in NaNbO3-based lead-free ceramics

2021 ◽  
Vol 118 (4) ◽  
pp. 043902
Author(s):  
Feng Li ◽  
Kai Li ◽  
Mingsheng Long ◽  
Chunchang Wang ◽  
Guohua Chen ◽  
...  
Keyword(s):  
Lead Free ◽  
Electrocaloric Effect ◽  
Ferroelectric Relaxor ◽  
Lead Free Ceramics

The primary and secondary electrocaloric effect at ferroelectric-ferroelectric transitions in lead-free ceramics

2020 ◽  
Vol 178 ◽  
pp. 150-154 ◽  
Author(s):  
Haoyu Wang ◽  
Le Zhang ◽  
Yunlong Sun ◽  
Claudio Cazorla ◽  
Mengyao Guo ◽  
...  
Keyword(s):  
Lead Free ◽  
Electrocaloric Effect ◽  
Lead Free Ceramics

Direct and indirect characterization of electrocaloric effect in (Na,K)NbO3 based lead-free ceramics

2016 ◽  
Vol 109 (16) ◽  
pp. 162902 ◽  
Author(s):  
Jianting Li ◽  
Yang Bai ◽  
Shiqiang Qin ◽  
Jian Fu ◽  
Ruzhong Zuo ◽  
...  
Keyword(s):  
Lead Free ◽  
Electrocaloric Effect ◽  
Lead Free Ceramics

Electrocaloric effect in BNT-based lead-free ceramics by local-structure and phase-boundary evolution

2020 ◽  
Vol 817 ◽  
pp. 152794 ◽  
Author(s):  
Guohui Li ◽  
Jiahao Li ◽  
Feng Li ◽  
Yuanbo Li ◽  
Xing Liu ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Local Structure ◽  
Lead Free ◽  
Electrocaloric Effect ◽  
Lead Free Ceramics

Large electrocaloric effect over a wide temperature range in BaTiO3-modified lead-free ceramics

2019 ◽  
Vol 7 (5) ◽  
pp. 1353-1358 ◽  
Author(s):  
Luo Zhao ◽  
Xiaoqin Ke ◽  
Zhijian Zhou ◽  
Xiaoqi Liao ◽  
Junjie Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Wide Temperature Range ◽  
Diffuse Phase Transition ◽  
Lead Free ◽  
Broad Temperature Range ◽  
Electrocaloric Effect ◽  
Temperature Range ◽  
Lead Free Ceramics ◽  
Diffuse Phase

BT-13CH exhibits a large electrocaloric effect over a broad temperature range because of multiphase coexistence (MPC) with diffuse phase transition (DPT) character.

Large electrocaloric effect with ultrawide temperature span in Na 1/2 Bi 1/2 TiO 3 ‐based lead‐free ceramics

2021 ◽  
Author(s):  
Qiumei Wei ◽  
Lovro Fulanovic ◽  
K.V. Lalitha ◽  
Mupeng Zheng ◽  
Yudong Hou ◽  
...  
Keyword(s):  
Lead Free ◽  
Electrocaloric Effect ◽  
Lead Free Ceramics

scholarly journals Large electrocaloric effect obtained in Ba(SnxTi1−x)O3 lead-free ceramics using direct and indirect measurements

2018 ◽  
Vol 08 (05) ◽  
pp. 1850038 ◽  
Author(s):  
Jiang Li ◽  
Dan-Dan Li ◽  
Biao Lu ◽  
Ying-Bang Yao ◽  
Tao Tao ◽  
...  
Keyword(s):  
Curie Temperature ◽  
High Temperatures ◽  
Broad Peak ◽  
Lead Free ◽  
Electrocaloric Effect ◽  
Indirect Measurements ◽  
Temperature Range ◽  
Maxwell Relation ◽  
Lead Free Ceramics ◽  
Measurement Results

The electrocaloric effect (ECE) in lead-free BaSnxTi[Formula: see text]O3 (BSnT, [Formula: see text], 0.10 and 0.15) ceramics were investigated using a direct ECE measurement. Results indicate that the maximum ECE occurs near the Curie temperature and it slightly shifts towards high temperatures. The directly measured ECE is larger than that calculated using the Maxwell relation and P-E loops. A maximum electrocaloric efficiency [Formula: see text][Formula: see text]KmV[Formula: see text] was procured for the composition with [Formula: see text] at [Formula: see text][Formula: see text]K. And it also shows a broad peak in the temperature range of 250–320[Formula: see text]K.

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