Two-step flash sintering of ZnO: Fast densification with suppressed grain growth

被引：47

作者：

Nie, Jiuyuan ^{[1
]}

Zhang, Yuanyao ^{[1
]}

Chan, Jonathan M. ^{[1
]}

Jiang, Sicong ^{[1
]}

Huang, Rongxia ^{[1
]}

Luo, Jian ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept NanoEngn, La Jolla, CA 92093 USA

来源：

SCRIPTA MATERIALIA | 2017年 / 141卷

关键词：

Sintering; Two-step sintering; Flash sintering; ZnO; Microstructure control; THERMAL RUNAWAY; MICROSTRUCTURAL DEVELOPMENT; STRONTIUM-TITANATE; CERAMICS; TEMPERATURE; ZIRCONIA; BATIO3; ONSET; SIZE;

D O I：

10.1016/j.scriptamat.2017.07.015

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Two-step flash sintering (TSFS) was proposed as a new ceramic fabrication method to achieve fast densification with suppressed grain growth. Using ZnO as an examplar, similar to 96.5% of theoretical density was achieved using TSFS with a grain size of similar to 370 nm, representing a > 3 times reduction of the grain size in comparison with conventional (one-step) flash sintering. Moreover, TSFS achieved this result in a few minutes, > 200 times faster than that needed for conventional two-step sintering to obtain comparable results, thereby representing an opportunity for significant energy and cost savings. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：6 / 9

页数：4

共 28 条

[1] Sintering dense nanocrystalline ceramics without final-stage grain growth [J].

Chen, IW ;

Wang, XH .

NATURE, 2000, 404 (6774) :168-171

[2] Flash-Sintering of Cubic Yttria-Stabilized Zirconia at 750°C for Possible Use in SOFC Manufacturing [J].

Cologna, Marco ;

Prette, Andre L. G. ;

Raj, Rishi .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2011, 94 (02) :316-319

[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] Thermal Runaway in Mold-Assisted Flash Sintering [J].

Dong, Yanhao ;

Chen, I. -Wei .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2016, 99 (09) :2889-2894

[5] Onset Criterion for Flash Sintering [J].

Dong, Yanhao ;

Chen, I-Wei .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2015, 98 (12) :3624-3627

[6] Predicting the Onset of Flash Sintering [J].

Dong, Yanhao ;

Chen, I-Wei .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2015, 98 (08) :2333-2335

[7] Densification of La0.6Sr0.4Co0.2Fe0.8O3 ceramic by flash sintering at temperature less than 100 A°C [J].

Gaur, Anshu ;

Sglavo, Vincenzo M. .

JOURNAL OF MATERIALS SCIENCE, 2014, 49 (18) :6321-6332

[8]

Grasso S., 2016, J AM CERAM SOC

[9] Flash Spark Plasma Sintering (FSPS) of Pure ZrB2 [J].

Grasso, Salvatore ;

Saunders, Theo ;

Porwal, Harshit ;

Cedillos-Barraza, Omar ;

Jayaseelan, Daniel Doni ;

Lee, William E. ;

Reece, Mike John .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2014, 97 (08) :2405-2408

[10] A novel sintering method to obtain fully dense gadolinia doped ceria by applying a direct current [J].

Hao, Xiaoming ;

Liu, Yajie ;

Wang, Zhenhua ;

Qiao, Jinshuo ;

Sun, Kening .

JOURNAL OF POWER SOURCES, 2012, 210 :86-91

← 1 2 3 →