Microstructure and mechanical properties of eutectic composite ceramic Al2O3/ZrO2 by explosion synthesis

Y. Zheng; T. Zhou; G. Ye; X. Zhang

Microstructure and mechanical properties of eutectic composite ceramic Al₂O₃/ZrO₂ by explosion synthesis

Y. Zheng^*
, T. Zhou
, G. Ye
, X. Zhang

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

Research output: Contribution to conference › Paper › peer-review

Abstract

Al₂O₃/ZrO₂ eutectic ceramics were prepared by explosion synthesis using Al and Zr(NO₃)₄ as raw materials. The Al₂O₃/ZrO₂ eutectic microstructure showed that the rod-like ZrO₂ phases with a diameter 200 nm were embedded orderly in Al₂O₃ matrix. With the increasing of the reaction temperature, the volume content of the Al ₂O₃/ZrO₂ eutectic increased accordingly, and the diameter and phase spacing of rod-like ZrO₂ decreased, which was mainly attributed to the efficient diffusion and the large temperature gradient. Due to the fine structure of the Al₂O₃/ZrO₂ eutectic, the Vickers hardness and fracture toughness can reach 21GPa and 11.7 MPa·m^1/2, respectively.

Original language	English
State	Published - 2011
Event	18th International Conference on Composites Materials, ICCM 2011 - Jeju, Korea, Republic of Duration: 21 Aug 2011 → 26 Aug 2011

Conference

Conference	18th International Conference on Composites Materials, ICCM 2011
Country/Territory	Korea, Republic of
City	Jeju
Period	21/08/11 → 26/08/11

Keywords

Combustion synthesis
Eutectic ceramic
Explosion synthesis
In situ composite
Rapid solidification

Cite this

@conference{58fde68109d8405fa207807e4ae4f2ee,

title = "Microstructure and mechanical properties of eutectic composite ceramic Al2O3/ZrO2 by explosion synthesis",

abstract = "Al2O3/ZrO2 eutectic ceramics were prepared by explosion synthesis using Al and Zr(NO3)4 as raw materials. The Al2O3/ZrO2 eutectic microstructure showed that the rod-like ZrO2 phases with a diameter 200 nm were embedded orderly in Al2O3 matrix. With the increasing of the reaction temperature, the volume content of the Al 2O3/ZrO2 eutectic increased accordingly, and the diameter and phase spacing of rod-like ZrO2 decreased, which was mainly attributed to the efficient diffusion and the large temperature gradient. Due to the fine structure of the Al2O3/ZrO2 eutectic, the Vickers hardness and fracture toughness can reach 21GPa and 11.7 MPa·m1/2, respectively.",

keywords = "Combustion synthesis, Eutectic ceramic, Explosion synthesis, In situ composite, Rapid solidification",

author = "Y. Zheng and T. Zhou and G. Ye and X. Zhang",

year = "2011",

language = "英语",

note = "18th International Conference on Composites Materials, ICCM 2011 ; Conference date: 21-08-2011 Through 26-08-2011",

}

TY - CONF

T1 - Microstructure and mechanical properties of eutectic composite ceramic Al2O3/ZrO2 by explosion synthesis

AU - Zheng, Y.

AU - Zhou, T.

AU - Ye, G.

AU - Zhang, X.

PY - 2011

Y1 - 2011

N2 - Al2O3/ZrO2 eutectic ceramics were prepared by explosion synthesis using Al and Zr(NO3)4 as raw materials. The Al2O3/ZrO2 eutectic microstructure showed that the rod-like ZrO2 phases with a diameter 200 nm were embedded orderly in Al2O3 matrix. With the increasing of the reaction temperature, the volume content of the Al 2O3/ZrO2 eutectic increased accordingly, and the diameter and phase spacing of rod-like ZrO2 decreased, which was mainly attributed to the efficient diffusion and the large temperature gradient. Due to the fine structure of the Al2O3/ZrO2 eutectic, the Vickers hardness and fracture toughness can reach 21GPa and 11.7 MPa·m1/2, respectively.

AB - Al2O3/ZrO2 eutectic ceramics were prepared by explosion synthesis using Al and Zr(NO3)4 as raw materials. The Al2O3/ZrO2 eutectic microstructure showed that the rod-like ZrO2 phases with a diameter 200 nm were embedded orderly in Al2O3 matrix. With the increasing of the reaction temperature, the volume content of the Al 2O3/ZrO2 eutectic increased accordingly, and the diameter and phase spacing of rod-like ZrO2 decreased, which was mainly attributed to the efficient diffusion and the large temperature gradient. Due to the fine structure of the Al2O3/ZrO2 eutectic, the Vickers hardness and fracture toughness can reach 21GPa and 11.7 MPa·m1/2, respectively.

KW - Combustion synthesis

KW - Eutectic ceramic

KW - Explosion synthesis

KW - In situ composite

KW - Rapid solidification

UR - https://www.scopus.com/pages/publications/85076868203

M3 - 论文

AN - SCOPUS:85076868203

T2 - 18th International Conference on Composites Materials, ICCM 2011

Y2 - 21 August 2011 through 26 August 2011

ER -

Microstructure and mechanical properties of eutectic composite ceramic Al₂O₃/ZrO₂ by explosion synthesis

Abstract

Conference

Keywords

Other files and links

Fingerprint

Cite this