Cold sintering process for 8 mol%Y2O3-stabilized ZrO2 ceramics

Hanzheng Guo; Thorsten J.M. Bayer; Jing Guo; Amanda Baker; Clive A. Randall

doi:10.1016/j.jeurceramsoc.2017.01.011

Cold sintering process for 8 mol%Y₂O₃-stabilized ZrO₂ ceramics

Hanzheng Guo
, Thorsten J.M. Bayer
, Jing Guo
, Amanda Baker
, Clive A. Randall

Pennsylvania State University

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

103 Scopus citations

Abstract

In this communication, the cold sintering process was applied to benefit the green body compaction of 8 mol%Y₂O₃-stablized ZrO₂ ceramics (8Y-YSZ). Compared to conventionally processed ceramics, an enhanced densification behavior was demonstrated in cold sintering related ones following a second step conventional sintering process. Dense ceramics up to ∼96% of theoretical density were achieved after sintering at 1200 °C. The resulted ceramics demonstrated a fine microstructure with a grain size ∼200 nm. A mechanical performance with a Vickers hardness of 13.6 GPa and a fracture toughness of 2.85 MPa m^1/2 was also reported.

Original language	English
Pages (from-to)	2303-2308
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	37
Issue number	5
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2017.01.011
State	Published - 1 May 2017
Externally published	Yes

Keywords

Cold sintering process
Densification
Fine grain size
Sintering
Yttria-stabilized zirconia

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10.1016/j.jeurceramsoc.2017.01.011

Cite this

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title = "Cold sintering process for 8 mol\%Y2O3-stabilized ZrO2 ceramics",

abstract = "In this communication, the cold sintering process was applied to benefit the green body compaction of 8 mol\%Y2O3-stablized ZrO2 ceramics (8Y-YSZ). Compared to conventionally processed ceramics, an enhanced densification behavior was demonstrated in cold sintering related ones following a second step conventional sintering process. Dense ceramics up to ∼96\% of theoretical density were achieved after sintering at 1200 °C. The resulted ceramics demonstrated a fine microstructure with a grain size ∼200 nm. A mechanical performance with a Vickers hardness of 13.6 GPa and a fracture toughness of 2.85 MPa m1/2 was also reported.",

keywords = "Cold sintering process, Densification, Fine grain size, Sintering, Yttria-stabilized zirconia",

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year = "2017",

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doi = "10.1016/j.jeurceramsoc.2017.01.011",

language = "英语",

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T1 - Cold sintering process for 8 mol%Y2O3-stabilized ZrO2 ceramics

AU - Guo, Hanzheng

AU - Bayer, Thorsten J.M.

AU - Guo, Jing

AU - Baker, Amanda

AU - Randall, Clive A.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - In this communication, the cold sintering process was applied to benefit the green body compaction of 8 mol%Y2O3-stablized ZrO2 ceramics (8Y-YSZ). Compared to conventionally processed ceramics, an enhanced densification behavior was demonstrated in cold sintering related ones following a second step conventional sintering process. Dense ceramics up to ∼96% of theoretical density were achieved after sintering at 1200 °C. The resulted ceramics demonstrated a fine microstructure with a grain size ∼200 nm. A mechanical performance with a Vickers hardness of 13.6 GPa and a fracture toughness of 2.85 MPa m1/2 was also reported.

AB - In this communication, the cold sintering process was applied to benefit the green body compaction of 8 mol%Y2O3-stablized ZrO2 ceramics (8Y-YSZ). Compared to conventionally processed ceramics, an enhanced densification behavior was demonstrated in cold sintering related ones following a second step conventional sintering process. Dense ceramics up to ∼96% of theoretical density were achieved after sintering at 1200 °C. The resulted ceramics demonstrated a fine microstructure with a grain size ∼200 nm. A mechanical performance with a Vickers hardness of 13.6 GPa and a fracture toughness of 2.85 MPa m1/2 was also reported.

KW - Cold sintering process

KW - Densification

KW - Fine grain size

KW - Sintering

KW - Yttria-stabilized zirconia

UR - https://www.scopus.com/pages/publications/85009799138

U2 - 10.1016/j.jeurceramsoc.2017.01.011

DO - 10.1016/j.jeurceramsoc.2017.01.011

M3 - 文章

AN - SCOPUS:85009799138

SN - 0955-2219

VL - 37

SP - 2303

EP - 2308

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 5

ER -

Cold sintering process for 8 mol%Y₂O₃-stabilized ZrO₂ ceramics

Abstract

Keywords

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