Fabrication of strong and tough alumina ceramic with isotropic textured microstructure at low temperature

Dazhao Liu; Guangyuan Zhang; Kaixuan Gui; Wenbo Han; Jiahong Niu; Miao Wang

doi:10.1016/j.jmrt.2023.04.122

Fabrication of strong and tough alumina ceramic with isotropic textured microstructure at low temperature

Dazhao Liu^*
, Guangyuan Zhang
, Kaixuan Gui
, Wenbo Han
, Jiahong Niu^*
, Miao Wang^*

^*Corresponding author for this work

School of Astronautics

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

10 Scopus citations

Abstract

High strength and toughness are contradictory in ceramic materials. Improving the toughness of ceramics through the introduction of a ductile phase to dissipate energy is usually at the sacrifice of strength, stiffness, and the ability to operate at high temperature. Here we developed a simple approach to fabricate isotropic alumina monolithic ceramic characterized by a unique combination of high strength (405.4 MPa), high toughness (5.62 MPa m^1/2) and thermal shock resistance toughness (746.2 °C), displaying a non-brittle fracture behavior. A clear picture of the toughening mechanism was depicted. This work highlights a practical guideline for development of bioinspired structural alumina ceramic.

Original language	English
Pages (from-to)	5159-5164
Number of pages	6
Journal	Journal of Materials Research and Technology
Volume	24
DOIs	https://doi.org/10.1016/j.jmrt.2023.04.122
State	Published - 1 May 2023

Keywords

Alumina ceramic
Alumina powder's platelet structure
Mechanical properties
Thermal shock resistance

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10.1016/j.jmrt.2023.04.122

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title = "Fabrication of strong and tough alumina ceramic with isotropic textured microstructure at low temperature",

abstract = "High strength and toughness are contradictory in ceramic materials. Improving the toughness of ceramics through the introduction of a ductile phase to dissipate energy is usually at the sacrifice of strength, stiffness, and the ability to operate at high temperature. Here we developed a simple approach to fabricate isotropic alumina monolithic ceramic characterized by a unique combination of high strength (405.4 MPa), high toughness (5.62 MPa m1/2) and thermal shock resistance toughness (746.2 °C), displaying a non-brittle fracture behavior. A clear picture of the toughening mechanism was depicted. This work highlights a practical guideline for development of bioinspired structural alumina ceramic.",

keywords = "Alumina ceramic, Alumina powder's platelet structure, Mechanical properties, Thermal shock resistance",

author = "Dazhao Liu and Guangyuan Zhang and Kaixuan Gui and Wenbo Han and Jiahong Niu and Miao Wang",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors",

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doi = "10.1016/j.jmrt.2023.04.122",

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T1 - Fabrication of strong and tough alumina ceramic with isotropic textured microstructure at low temperature

AU - Liu, Dazhao

AU - Zhang, Guangyuan

AU - Gui, Kaixuan

AU - Han, Wenbo

AU - Niu, Jiahong

AU - Wang, Miao

PY - 2023/5/1

Y1 - 2023/5/1

N2 - High strength and toughness are contradictory in ceramic materials. Improving the toughness of ceramics through the introduction of a ductile phase to dissipate energy is usually at the sacrifice of strength, stiffness, and the ability to operate at high temperature. Here we developed a simple approach to fabricate isotropic alumina monolithic ceramic characterized by a unique combination of high strength (405.4 MPa), high toughness (5.62 MPa m1/2) and thermal shock resistance toughness (746.2 °C), displaying a non-brittle fracture behavior. A clear picture of the toughening mechanism was depicted. This work highlights a practical guideline for development of bioinspired structural alumina ceramic.

AB - High strength and toughness are contradictory in ceramic materials. Improving the toughness of ceramics through the introduction of a ductile phase to dissipate energy is usually at the sacrifice of strength, stiffness, and the ability to operate at high temperature. Here we developed a simple approach to fabricate isotropic alumina monolithic ceramic characterized by a unique combination of high strength (405.4 MPa), high toughness (5.62 MPa m1/2) and thermal shock resistance toughness (746.2 °C), displaying a non-brittle fracture behavior. A clear picture of the toughening mechanism was depicted. This work highlights a practical guideline for development of bioinspired structural alumina ceramic.

KW - Alumina ceramic

KW - Alumina powder's platelet structure

KW - Mechanical properties

KW - Thermal shock resistance

UR - https://www.scopus.com/pages/publications/85153575583

U2 - 10.1016/j.jmrt.2023.04.122

DO - 10.1016/j.jmrt.2023.04.122

M3 - 文章

AN - SCOPUS:85153575583

SN - 2238-7854

VL - 24

SP - 5159

EP - 5164

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

ER -

Fabrication of strong and tough alumina ceramic with isotropic textured microstructure at low temperature

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Keywords

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