Fabrication and mechanical behavior of nano-grained LaGdZr2O7 transparent ceramic

Jirui Deng; Zhangyi Huang; Junpu Wang; Zhe Tang; Hao Liang; Lu Zhang; Tiecheng Lu; Jianqi Qi; Bin Chen; Duanwei He

doi:10.1016/j.ceramint.2021.08.134

Fabrication and mechanical behavior of nano-grained LaGdZr₂O₇ transparent ceramic

Jirui Deng
, Zhangyi Huang
, Junpu Wang
, Zhe Tang
, Hao Liang
, Lu Zhang
, Tiecheng Lu
, Jianqi Qi^*
, Bin Chen^*
, Duanwei He^*

^*Corresponding author for this work

Sichuan University
Sichuan University
Center for High Pressure Science & Technology Advanced Research

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

6 Scopus citations

Abstract

Herein, we report transparent LaGdZr₂O₇ nano-grained ceramics with an average grain size of 10 nm prepared using the high-pressure sintering method at 5.0 GPa/450 °C. These ceramics showed improved plastic deformation as compared to transparent micro-grained LaGdZr₂O₇ ceramics. Moreover, the fracture toughness of the nano-grained ceramics reached up to 3.4 MPam^1/2, which is 79 % higher than that of the micro-grained samples. This improvement in the fracture toughness of the nano-grained ceramics was associated with the presence of a large number of weak grain boundaries in them.

Original language	English
Pages (from-to)	32471-32475
Number of pages	5
Journal	Ceramics International
Volume	47
Issue number	22
DOIs	https://doi.org/10.1016/j.ceramint.2021.08.134
State	Published - 15 Nov 2021
Externally published	Yes

Keywords

High pressure
LaGdZrO
Mechanical properties
Nano-grained ceramic
Transparent ceramic

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10.1016/j.ceramint.2021.08.134

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@article{fa1f01d190344ffc9113c53ffab40c97,

title = "Fabrication and mechanical behavior of nano-grained LaGdZr2O7 transparent ceramic",

abstract = "Herein, we report transparent LaGdZr2O7 nano-grained ceramics with an average grain size of 10 nm prepared using the high-pressure sintering method at 5.0 GPa/450 °C. These ceramics showed improved plastic deformation as compared to transparent micro-grained LaGdZr2O7 ceramics. Moreover, the fracture toughness of the nano-grained ceramics reached up to 3.4 MPam1/2, which is 79 \% higher than that of the micro-grained samples. This improvement in the fracture toughness of the nano-grained ceramics was associated with the presence of a large number of weak grain boundaries in them.",

keywords = "High pressure, LaGdZrO, Mechanical properties, Nano-grained ceramic, Transparent ceramic",

author = "Jirui Deng and Zhangyi Huang and Junpu Wang and Zhe Tang and Hao Liang and Lu Zhang and Tiecheng Lu and Jianqi Qi and Bin Chen and Duanwei He",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd and Techna Group S.r.l.",

year = "2021",

month = nov,

day = "15",

doi = "10.1016/j.ceramint.2021.08.134",

language = "英语",

volume = "47",

pages = "32471--32475",

journal = "Ceramics International",

issn = "0272-8842",

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number = "22",

}

TY - JOUR

T1 - Fabrication and mechanical behavior of nano-grained LaGdZr2O7 transparent ceramic

AU - Deng, Jirui

AU - Huang, Zhangyi

AU - Wang, Junpu

AU - Tang, Zhe

AU - Liang, Hao

AU - Zhang, Lu

AU - Lu, Tiecheng

AU - Qi, Jianqi

AU - Chen, Bin

AU - He, Duanwei

PY - 2021/11/15

Y1 - 2021/11/15

N2 - Herein, we report transparent LaGdZr2O7 nano-grained ceramics with an average grain size of 10 nm prepared using the high-pressure sintering method at 5.0 GPa/450 °C. These ceramics showed improved plastic deformation as compared to transparent micro-grained LaGdZr2O7 ceramics. Moreover, the fracture toughness of the nano-grained ceramics reached up to 3.4 MPam1/2, which is 79 % higher than that of the micro-grained samples. This improvement in the fracture toughness of the nano-grained ceramics was associated with the presence of a large number of weak grain boundaries in them.

AB - Herein, we report transparent LaGdZr2O7 nano-grained ceramics with an average grain size of 10 nm prepared using the high-pressure sintering method at 5.0 GPa/450 °C. These ceramics showed improved plastic deformation as compared to transparent micro-grained LaGdZr2O7 ceramics. Moreover, the fracture toughness of the nano-grained ceramics reached up to 3.4 MPam1/2, which is 79 % higher than that of the micro-grained samples. This improvement in the fracture toughness of the nano-grained ceramics was associated with the presence of a large number of weak grain boundaries in them.

KW - High pressure

KW - LaGdZrO

KW - Mechanical properties

KW - Nano-grained ceramic

KW - Transparent ceramic

UR - https://www.scopus.com/pages/publications/85112510137

U2 - 10.1016/j.ceramint.2021.08.134

DO - 10.1016/j.ceramint.2021.08.134

M3 - 文章

AN - SCOPUS:85112510137

SN - 0272-8842

VL - 47

SP - 32471

EP - 32475

JO - Ceramics International

JF - Ceramics International

IS - 22

ER -

Fabrication and mechanical behavior of nano-grained LaGdZr₂O₇ transparent ceramic

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Keywords

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