Potassium–sodium niobate lead-free ceramics: modified strain as well as piezoelectricity

2015 ◽  
Vol 3 (5) ◽  
pp. 1868-1874 ◽  
Author(s):  
Ting Zheng ◽  
Jiagang Wu ◽  
Dingquan Xiao ◽  
Jianguo Zhu ◽  
Xiangjian Wang ◽  
...  
Keyword(s):  
High Strain ◽  
Lead Free ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Phase Boundaries ◽  
Potassium Sodium ◽  
Lead Free Ceramics ◽  
New Phase

The obvious conflicts between large piezoelectricity and high strain could be solved by developing new phase boundaries in potassium–sodium niobate materials.

scholarly journals Progress on the doping and phase boundary design of potassium–sodium niobate lead-free ceramics

2018 ◽  
Vol 08 (03) ◽  
pp. 1830003 ◽  
Author(s):  
Jie Xing ◽  
Ting Zheng ◽  
Jiagang Wu ◽  
Dingquan Xiao ◽  
Jianguo Zhu
Keyword(s):  
Room Temperature ◽  
Piezoelectric Properties ◽  
Lead Free ◽  
High Curie Temperature ◽  
Sodium Niobate ◽  
Sintering Aids ◽  
Potassium Sodium Niobate ◽  
Phase Boundaries ◽  
Potassium Sodium ◽  
Lead Free Ceramics

Potassium–sodium niobate (K,Na)NbO3/(KNN) lead-free ceramics have drawn vast amount of attention as one of the effective alternatives to lead-based ones. In recent years, the author’s group concentrated their work on KNN-based ceramics. This paper reviews the main obtained results in authors’ laboratory on how to enhance the piezoelectric properties of KNN-based ceramics, including the ions or compounds substitution, the constructing and types of phase boundaries near room temperature, the investigation of other tools (sintering aids, synthesis technique, poling conditions) on properties. All the published papers up to now show the developing higher performance with maintaining high Curie temperature of KNN-based ceramics which has great potential for the future and is the key to success for the field.

Giant strain response with low hysteresis in potassium sodium niobate based lead-free ceramics

2019 ◽  
Vol 45 (12) ◽  
pp. 14675-14683 ◽  
Author(s):  
Lixiang Yu ◽  
Hao Xi ◽  
Zhenglei Yu ◽  
Yunfei Liu ◽  
Yinong Lyu
Keyword(s):  
Lead Free ◽  
Strain Response ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Potassium Sodium ◽  
Lead Free Ceramics

High unipolar strain in samarium-doped potassium–sodium niobate lead-free ceramics

RSC Advances ◽  
2015 ◽  
Vol 5 (49) ◽  
pp. 39295-39302 ◽  
Author(s):  
Xiang Lv ◽  
Jiagang Wu ◽  
Dingquan Xiao ◽  
Yuan Yuan ◽  
Hong Tao ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Composition Dependence ◽  
Lead Free ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Potassium Sodium ◽  
Phase Structures ◽  
Lead Free Ceramics

In this work, a high unipolar strain has been developed in the 0.9675KNNST–0.0325(Bi1−xSmx)NKZ ceramics by introducing Sm, and the composition dependence of their phase structures and electrical properties is also discussed.

Superior Piezoelectric Properties in Potassium-Sodium Niobate Lead-Free Ceramics

2016 ◽  
Vol 28 (38) ◽  
pp. 8519-8523 ◽  
Author(s):  
Kai Xu ◽  
Jun Li ◽  
Xiang Lv ◽  
Jiagang Wu ◽  
Xixiang Zhang ◽  
...  
Keyword(s):  
Piezoelectric Properties ◽  
Lead Free ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Potassium Sodium ◽  
Lead Free Ceramics

Giant Piezoelectricity in Potassium–Sodium Niobate Lead-Free Ceramics

2014 ◽  
Vol 136 (7) ◽  
pp. 2905-2910 ◽  
Author(s):  
Xiaopeng Wang ◽  
Jiagang Wu ◽  
Dingquan Xiao ◽  
Jianguo Zhu ◽  
Xiaojing Cheng ◽  
...  
Keyword(s):  
Lead Free ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Potassium Sodium ◽  
Lead Free Ceramics
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