Microstructure evolution, mechanical and tribological properties of Ti3(Al,Sn)C2/Al2O3 composites

Shuai Wang; Jun Cheng; Shengyu Zhu; Zhuhui Qiao; Jun Yang; Weimin Liu

doi:10.1016/j.jeurceramsoc.2018.01.029

Microstructure evolution, mechanical and tribological properties of Ti₃(Al,Sn)C₂/Al₂O₃ composites

Shuai Wang, Jun Cheng, Shengyu Zhu, Zhuhui Qiao, Jun Yang, Weimin Liu

CAS - Lanzhou Institute of Chemical Physics

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

15 Scopus citations

Abstract

In this paper, in situ formed Ti₃(Al,Sn)C₂/Al₂O₃ composites were fabricated by sintering the mixture of Ti₃AlC₂ and SnO₂. The Al atoms could diffuse out of the Ti₃AlC₂ layered structure to react with SnO₂, resulting in the formation of Ti₃(Al,Sn)C₂ solid solution and Al₂O₃. When the SnO₂ content was 20 wt.%, the sintered Ti₃(Al,Sn)C₂/Al₂O₃ composite exhibited the best overall mechanical properties, because of the optimized cooperative strengthening effect of solution strengthening and Al₂O₃ enhancement. When the SnO₂ content increased up to 30 wt.%, the flexural strength and fracture toughness of Ti₃(Al,Sn)C₂/Al₂O₃ composite dramatically decreased on account of the large accumulation of generated Al₂O₃. Moreover, according to the SiC ball-on-flat wear tests, it was found that the wear resistance of Ti₃(Al,Sn)C₂/Al₂O₃ composites was significantly improved as the SnO₂ content increased.

Original language	English
Pages (from-to)	2502-2510
Number of pages	9
Journal	Journal of the European Ceramic Society
Volume	38
Issue number	6
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2018.01.029
State	Published - Jun 2018
Externally published	Yes

Keywords

MAX phase ceramics
Mechanical properties
Microstructure
Tribological properties

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10.1016/j.jeurceramsoc.2018.01.029

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title = "Microstructure evolution, mechanical and tribological properties of Ti3(Al,Sn)C2/Al2O3 composites",

abstract = "In this paper, in situ formed Ti3(Al,Sn)C2/Al2O3 composites were fabricated by sintering the mixture of Ti3AlC2 and SnO2. The Al atoms could diffuse out of the Ti3AlC2 layered structure to react with SnO2, resulting in the formation of Ti3(Al,Sn)C2 solid solution and Al2O3. When the SnO2 content was 20 wt.%, the sintered Ti3(Al,Sn)C2/Al2O3 composite exhibited the best overall mechanical properties, because of the optimized cooperative strengthening effect of solution strengthening and Al2O3 enhancement. When the SnO2 content increased up to 30 wt.%, the flexural strength and fracture toughness of Ti3(Al,Sn)C2/Al2O3 composite dramatically decreased on account of the large accumulation of generated Al2O3. Moreover, according to the SiC ball-on-flat wear tests, it was found that the wear resistance of Ti3(Al,Sn)C2/Al2O3 composites was significantly improved as the SnO2 content increased.",

keywords = "MAX phase ceramics, Mechanical properties, Microstructure, Tribological properties",

author = "Shuai Wang and Jun Cheng and Shengyu Zhu and Zhuhui Qiao and Jun Yang and Weimin Liu",

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T1 - Microstructure evolution, mechanical and tribological properties of Ti3(Al,Sn)C2/Al2O3 composites

AU - Wang, Shuai

AU - Cheng, Jun

AU - Zhu, Shengyu

AU - Qiao, Zhuhui

AU - Yang, Jun

AU - Liu, Weimin

PY - 2018/6

Y1 - 2018/6

N2 - In this paper, in situ formed Ti3(Al,Sn)C2/Al2O3 composites were fabricated by sintering the mixture of Ti3AlC2 and SnO2. The Al atoms could diffuse out of the Ti3AlC2 layered structure to react with SnO2, resulting in the formation of Ti3(Al,Sn)C2 solid solution and Al2O3. When the SnO2 content was 20 wt.%, the sintered Ti3(Al,Sn)C2/Al2O3 composite exhibited the best overall mechanical properties, because of the optimized cooperative strengthening effect of solution strengthening and Al2O3 enhancement. When the SnO2 content increased up to 30 wt.%, the flexural strength and fracture toughness of Ti3(Al,Sn)C2/Al2O3 composite dramatically decreased on account of the large accumulation of generated Al2O3. Moreover, according to the SiC ball-on-flat wear tests, it was found that the wear resistance of Ti3(Al,Sn)C2/Al2O3 composites was significantly improved as the SnO2 content increased.

AB - In this paper, in situ formed Ti3(Al,Sn)C2/Al2O3 composites were fabricated by sintering the mixture of Ti3AlC2 and SnO2. The Al atoms could diffuse out of the Ti3AlC2 layered structure to react with SnO2, resulting in the formation of Ti3(Al,Sn)C2 solid solution and Al2O3. When the SnO2 content was 20 wt.%, the sintered Ti3(Al,Sn)C2/Al2O3 composite exhibited the best overall mechanical properties, because of the optimized cooperative strengthening effect of solution strengthening and Al2O3 enhancement. When the SnO2 content increased up to 30 wt.%, the flexural strength and fracture toughness of Ti3(Al,Sn)C2/Al2O3 composite dramatically decreased on account of the large accumulation of generated Al2O3. Moreover, according to the SiC ball-on-flat wear tests, it was found that the wear resistance of Ti3(Al,Sn)C2/Al2O3 composites was significantly improved as the SnO2 content increased.

KW - MAX phase ceramics

KW - Mechanical properties

KW - Microstructure

KW - Tribological properties

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M3 - 文章

AN - SCOPUS:85041005526

SN - 0955-2219

VL - 38

SP - 2502

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JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 6

ER -

Microstructure evolution, mechanical and tribological properties of Ti₃(Al,Sn)C₂/Al₂O₃ composites

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