Hf4+离子掺杂BNT对电卡性能的影响

Wenjing Shi; Yunyao Huang; Xiaoyong Wei; Li Jin

doi:10.11977/j.issn.1004-2474.2022.04.016

Hf4+离子掺杂BNT对电卡性能的影响

Translated title of the contribution: Effect of Hf⁴⁺Ion Doped BNT on the Performance of Electrocaloric Effect

Wenjing Shi
, Yunyao Huang
, Xiaoyong Wei
, Li Jin

Faculty of Electronic and Information Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

Abstract

Bi_0.5Na_0.5Ti_(1-x)Hf_xO₃(x = 0, 0. 02, 0. 04, 0. 06) ceramics were made using the conventional solid-state synthesis method in this study. By using XRD and SEM to characterize the phase structure and microsurface, the dielectric and ferroelectric characteristics, but also the connection between specific heat capacity and phase transition, were all investigated. In the study, we regulate the temperature and electric field to control the ferroelectric phase transition. The electrocaloric effect to be close to room temperature is excepted. Finally, the negative electro-caloric effect of Delta;T=0. 5 K was successfully attained in Bi_0.5Na_0.5TiO₃-0. 04Hf ceramics by induced domain switching at 50 °C and 70 kV/cm electric field with the aid of Maxwell's equation and the indirect method.

Translated title of the contribution	Effect of Hf⁴⁺Ion Doped BNT on the Performance of Electrocaloric Effect
Original language	Chinese (Traditional)
Pages (from-to)	588-592
Number of pages	5
Journal	Yadian Yu Shengguang/Piezoelectrics and Acoustooptics
Volume	44
Issue number	4
DOIs	https://doi.org/10.11977/j.issn.1004-2474.2022.04.016
State	Published - Aug 2022

Access to Document

10.11977/j.issn.1004-2474.2022.04.016

Cite this

@article{9844293afbd04068a6dc07dee333a3bf,

title = "Hf4+离子掺杂BNT对电卡性能的影响",

abstract = "Bi0.5Na0.5Ti(1-x)HfxO3(x = 0, 0. 02, 0. 04, 0. 06) ceramics were made using the conventional solid-state synthesis method in this study. By using XRD and SEM to characterize the phase structure and microsurface, the dielectric and ferroelectric characteristics, but also the connection between specific heat capacity and phase transition, were all investigated. In the study, we regulate the temperature and electric field to control the ferroelectric phase transition. The electrocaloric effect to be close to room temperature is excepted. Finally, the negative electro-caloric effect of Delta;T=0. 5 K was successfully attained in Bi0.5Na0.5TiO3-0. 04Hf ceramics by induced domain switching at 50 °C and 70 kV/cm electric field with the aid of Maxwell's equation and the indirect method.",

keywords = "BNT-based, electrocaloric effect, ferroelectric ceramic, lead free, perovskite",

author = "Wenjing Shi and Yunyao Huang and Xiaoyong Wei and Li Jin",

year = "2022",

month = aug,

doi = "10.11977/j.issn.1004-2474.2022.04.016",

language = "繁体中文",

volume = "44",

pages = "588--592",

journal = "Yadian Yu Shengguang/Piezoelectrics and Acoustooptics",

issn = "1004-2474",

publisher = "Sichuan Institute of Piezoelectric and Acoustooptic Technology",

number = "4",

}

TY - JOUR

T1 - Hf4+离子掺杂BNT对电卡性能的影响

AU - Shi, Wenjing

AU - Huang, Yunyao

AU - Wei, Xiaoyong

AU - Jin, Li

PY - 2022/8

Y1 - 2022/8

N2 - Bi0.5Na0.5Ti(1-x)HfxO3(x = 0, 0. 02, 0. 04, 0. 06) ceramics were made using the conventional solid-state synthesis method in this study. By using XRD and SEM to characterize the phase structure and microsurface, the dielectric and ferroelectric characteristics, but also the connection between specific heat capacity and phase transition, were all investigated. In the study, we regulate the temperature and electric field to control the ferroelectric phase transition. The electrocaloric effect to be close to room temperature is excepted. Finally, the negative electro-caloric effect of Delta;T=0. 5 K was successfully attained in Bi0.5Na0.5TiO3-0. 04Hf ceramics by induced domain switching at 50 °C and 70 kV/cm electric field with the aid of Maxwell's equation and the indirect method.

AB - Bi0.5Na0.5Ti(1-x)HfxO3(x = 0, 0. 02, 0. 04, 0. 06) ceramics were made using the conventional solid-state synthesis method in this study. By using XRD and SEM to characterize the phase structure and microsurface, the dielectric and ferroelectric characteristics, but also the connection between specific heat capacity and phase transition, were all investigated. In the study, we regulate the temperature and electric field to control the ferroelectric phase transition. The electrocaloric effect to be close to room temperature is excepted. Finally, the negative electro-caloric effect of Delta;T=0. 5 K was successfully attained in Bi0.5Na0.5TiO3-0. 04Hf ceramics by induced domain switching at 50 °C and 70 kV/cm electric field with the aid of Maxwell's equation and the indirect method.

KW - BNT-based

KW - electrocaloric effect

KW - ferroelectric ceramic

KW - lead free

KW - perovskite

UR - https://www.scopus.com/pages/publications/85140454717

U2 - 10.11977/j.issn.1004-2474.2022.04.016

DO - 10.11977/j.issn.1004-2474.2022.04.016

M3 - 文章

AN - SCOPUS:85140454717

SN - 1004-2474

VL - 44

SP - 588

EP - 592

JO - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

JF - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

IS - 4

ER -

Hf4+离子掺杂BNT对电卡性能的影响

Abstract

Access to Document

Other files and links

Fingerprint

Cite this