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

Wenjing Shi
, Yunyao Huang
, Xiaoyong Wei
, Li Jin

电子与信息学部

Xi'an Jiaotong University

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

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.

投稿的翻译标题	Effect of Hf⁴⁺Ion Doped BNT on the Performance of Electrocaloric Effect
源语言	繁体中文
页（从-至）	588-592
页数	5
期刊	Yadian Yu Shengguang/Piezoelectrics and Acoustooptics
卷	44
期	4
DOI	https://doi.org/10.11977/j.issn.1004-2474.2022.04.016
出版状态	已出版 - 8月 2022

关键词

BNT-based
electrocaloric effect
ferroelectric ceramic
lead free
perovskite

访问文件

10.11977/j.issn.1004-2474.2022.04.016

其它文件与链接

链接到 Scopus 的出版物

引用此

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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",

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

language = "繁体中文",

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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

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