Effect of atmospheric conditions on the onset electric field of ZnO and Y2O3 ceramics flash sintering at room temperature

被引：10

作者：

Zhou, Hongyang ^{[1
]}

Li, Xiang ^{[1
]}

Huang, Rongxia ^{[2
,3
]}

Yan, Nianping ^{[4
]}

Wang, Xilin ^{[1
]}

Jia, Zhidong ^{[1
]}

机构：

[1] Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Engn Lab Power Equipment Reliabil Complicated Coa, Shenzhen 518055, Guangdong, Peoples R China

[2] Foshan Huajun Adv Ceram Co Ltd, Foshan, Guangdong, Peoples R China

[3] Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Guangdong, Peoples R China

[4] State Grade Jiangxi Elect Power Res Inst, Nanchang 330000, Jiangxi, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 24期

基金：

中国国家自然科学基金;

关键词：

Flash sintering; Atmospheric conditions; Electric breakdown; ZnO; Y2O3; ZIRCONIA; DENSIFICATION; PRESSURE; ACHIEVE; ALUMINA;

D O I：

10.1016/j.ceramint.2021.08.316

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Flash sintering of zinc oxide (ZnO) ceramics can be induced at room temperature (25 degrees C) by electrical breakdown at high electric field strength. However, a strong discharge may degrade the sample. This study investigated the effects of atmospheric pressure and composition on the onset electric field for the flash sintering of ZnO. The experimental results show that flash sintering of ZnO under a low electric field at room temperature can be achieved by adjusting the atmospheric conditions. Compared with the onset electric field strength under normal atmospheric conditions, the value for flash sintering of ZnO at 20 kPa in a mixture of 20% air +80% argon (Ar) can be reduced by 82% to approximately 700 V/cm. This method also applies to yttrium oxide (Y2O3) for a low electric field in flash sintering at room temperature, and is the first report on flash sintering of Y2O3 at room temperature.

引用

页码：34068 / 34071

页数：4

共 24 条

[1] Theoretical and phenomenological analogies between flash sintering and dielectric breakdown in α-alumina [J].

Biesuz, Mattia ;

Luchi, Piero ;

Quaranta, Alberto ;

Sglavo, Vincenzo M. .

JOURNAL OF APPLIED PHYSICS, 2016, 120 (14)

[2] Flash sintering of alumina: Effect of different operating conditions on densification [J].

Biesuz, Mattia ;

Sglavo, Vincenzo M. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2016, 36 (10) :2535-2542

[3] Flash Sintering of Nanograin Zirconia in <5 s at 850°C [J].

Cologna, Marco ;

Rashkova, Boriana ;

Raj, Rishi .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2010, 93 (11) :3556-3559

[4] Graphite assisted flash sintering of Sm2O3 doped CeO2 ceramics at the onset temperature of 25 °C [J].

Guan, Lili ;

Li, Jian ;

Song, Xiwen ;

Bao, Jinxiao ;

Jiang, Tao .

SCRIPTA MATERIALIA, 2019, 159 :72-75

[5] Mechanism of flash sintering with high electric field: In the view of electric discharge and breakdown [J].

Jieming Liu ;

Huang Rongxia ;

Ruobing Zhang ;

Guanghua Liu ;

Xilin Wang ;

Zhidong Jia ;

Liming Wang .

SCRIPTA MATERIALIA, 2020, 187 :93-96

[6] Emergence and Extinction of a New Phase During On-Off Experiments Related to Flash Sintering of 3YSZ [J].

Lebrun, Jean-Marie ;

Morrissey, Timothy G. ;

Francis, John S. C. ;

Seymour, Kevin C. ;

Kriven, Waltraud M. ;

Raj, Rishi .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2015, 98 (05) :1493-1497

[7] Effect of oxygen partial pressure on temperature for onset of flash sintering 3YSZ [J].

Liu, Dianguang ;

Cao, Yejie ;

Liu, Jinling ;

Gao, Yan ;

Wang, Yiguang .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2018, 38 (02) :817-820

[8] Effect of holding time on the microstructure and properties of flash-sintered Y2O3-doped ZrO2 [J].

Liu, Dianguang ;

Gao, Yan ;

Liu, Jinling ;

Wang, Yiguang ;

An, Linan .

CERAMICS INTERNATIONAL, 2016, 42 (15) :17442-17446

[9] Field-assisted sintering of undoped BaTiO3: Microstructure evolution and dielectric permittivity [J].

M'Peko, Jean-Claude ;

Francis, John. S. . C. ;

Raj, Rishi .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2014, 34 (15) :3655-3660

[10] Characteristics of Streamer Propagation along the Insulation Surface: Influence of Air Pressure and Humidity [J].

Meng, Xiaobo ;

Mei, Hongwei ;

Wang, Liming ;

Guan, Zhicheng ;

Zhou, Jun .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2017, 24 (01) :391-400

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