Piezoelectricity in Excess of 800 pC/N over 400 degrees C in BiScO3-PbTiO3-CaTiO3 Ceramics

Yang, Chen1; Xu, Xijun1; Ali, Wajid1; Wang, Yaojin1; Wang, Yiping2; Yang, Ying2; Chen, Lang3; Yuan, Guoliang1,3

2021-07-21

10.1021/acsami.1c07492

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Ultrasonic sensors are widely applied in industries near room temperature; however, their application at high temperature is still a challenge mainly due to the lack of high-performance piezoelectric ceramics. Here, the 0.364BiScO(3)-0.636PbTiO(3)-0.005CaTiO(3) ceramic exhibits excellent piezoelectric performances at 20-440 degrees C. Its piezoelectric coefficient d(33) increases from 475 pC/N at 20 degrees C to 853 pC/N at 360 degrees C, and then it gradually decreases to 669 pC/N at 440 degrees C. Furthermore, the planar electromechanical coupling factor k(p) gradually increases from 0.59 at 20 degrees C to 0.67 at 200 degrees C, and then it remains at a stable value of 0.65-0.67 at 150-350 degrees C. These achievements are because the ceramic morphotropic phase boundaries have a flat Gibbs free energy versus polarization curve and a wide temperature range. Since the piezoelectric ceramic shows satisfactory piezoelectric properties at 20-440 degrees C, the corresponding ultrasonic sensors can in situ monitor many high-temperature devices, such as engines, wheels, drills, boilers, etc.

ferroelectric high-temperature piezoelectric ceramics BiScO3-PbTiO3 piezoelectric coefficients electromechanical coupling factor

SCI ; EI

英语

通讯

Science and Technology Research Items of Shenzhen[JCYJ20170412153325679] ; National Natural Science Foundation of China[51790492,11874032,51972160,61874055]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000677540900062

AMER CHEMICAL SOC

20213010678759

Ceramics industry ; Crystallography ; Electromechanical coupling ; Free energy ; Gibbs free energy ; Lead titanate ; Perovskite ; Piezoelectric ceramics ; Ultrasonic sensors

Minerals:482.2 ; Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Dielectric Materials:708.1 ; Ultrasonic Devices:753.2 ; Crystalline Solids:933.1

Web of Science

1.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
2.Nanjing Univ Aeronaut & Astronaut, Precis Driving Lab, Nanjing 210016, Peoples R China
3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

Yang, Chen,Xu, Xijun,Ali, Wajid,et al. Piezoelectricity in Excess of 800 pC/N over 400 degrees C in BiScO3-PbTiO3-CaTiO3 Ceramics[J]. ACS Applied Materials & Interfaces,2021,13(28):33253-33261.

Yang, Chen.,Xu, Xijun.,Ali, Wajid.,Wang, Yaojin.,Wang, Yiping.,...&Yuan, Guoliang.(2021).Piezoelectricity in Excess of 800 pC/N over 400 degrees C in BiScO3-PbTiO3-CaTiO3 Ceramics.ACS Applied Materials & Interfaces,13(28),33253-33261.

Yang, Chen,et al."Piezoelectricity in Excess of 800 pC/N over 400 degrees C in BiScO3-PbTiO3-CaTiO3 Ceramics".ACS Applied Materials & Interfaces 13.28(2021):33253-33261.