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ZHANG Yuelin, XU Ruyi, JIANG Ru, et al. Research progress on toughening of alumina ceramic[J]. Acta Materiae Compositae Sinica.

Citation:

ZHANG Yuelin, XU Ruyi, JIANG Ru, et al. Research progress on toughening of alumina ceramic[J]. Acta Materiae Compositae Sinica.

ZHANG Yuelin, XU Ruyi, JIANG Ru, et al. Research progress on toughening of alumina ceramic[J]. Acta Materiae Compositae Sinica.

Citation:

ZHANG Yuelin, XU Ruyi, JIANG Ru, et al. Research progress on toughening of alumina ceramic[J]. Acta Materiae Compositae Sinica.

Research progress on toughening of alumina ceramic

ZHANG Yuelin^{1, 2},
XU Ruyi^{1, 2},
JIANG Ru^{1, 2
,
,},
ZHU Zhonghua^{1, 2},
CHAI Yifeng^{1, 2}

1.
School of Physics and Electronic Science, Hunan University of Science and Technology, Xiangtan 411201, China
2.
Key Laboratory of Intelligent Sensors and Advanced Sensing Materials of Hunan Province, Hunan University of Science and Technology, Xiangtan 411201, China

Funds: Excellent Youth (23B0482) of Hunan Education Department; Major Program (23A0355) of Hunan Education Department

Received Date: 2024-01-23
Accepted Date: 2024-03-18
Rev Recd Date: 2024-03-03

Available Online: 2024-04-20

Abstract

As one of the earliest researched and most widely used ceramics, alumina (Al₂O₃) have many excellent properties, such as high strength and hardness, high-temperature resistance, wear resistance and corrosion resistance, etc., and has been widely used in the fields of defense industry, aerospace and biomedicine. However, the inherent brittleness greatly limits the further application of Al₂O₃ ceramic in many fields. Toughening has always been a core research topic in the study of ceramic materials, and the introduction of toughened phase materials is the main way to improve the toughness of ceramic materials. In this paper, the toughening mechanism of ceramic materials is briefly summarized, and then the latest research status of Al₂O₃ ceramic toughening is reviewed, the key problems existing in the toughening method are analyzed, and the development direction of Al₂O₃ ceramic toughening is prospected, in order to provide reference for the subsequent development of Al₂O₃ ceramic toughening.
- Al₂O₃ ceramic,
- toughness,
- toughening phase,
- toughening mechanism,
- review
Long Abstrsct
Innovation Points

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沈阳化工大学材料科学与工程学院沈阳 110142

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Figure 1. Intrinsic and extrinsic toughening mechanisms of structural materials^[9]
Figure 2. Schematic diagram of toughening mechanism of particle toughened Al₂O₃ composites^[4]
Figure 3. Fracture toughness of Al₂O₃ composites toughened with different particles in the last decade
Figure 4. The propagation pathways of cracks introduced on the surface of TiC/Ti/Al₂O₃ composite: (a) Crack deflection and transgranular fracture, (b) Ti particle-induced crack bridging and (c) TiC particle-induced crack bridging^[14]; (d) Fracture toughness of Sm₂O₃/Ti/Al₂O₃ composites^[38]
Figure 5. (a) Schematic diagram of plastic martensite transformation Inhibiting the crack propagation^[42]; (b) Toughening mechanism in ZTA composites at crack initiation and propagation (Yellow particles represent tetragonal zirconia, Color change to red indicates monoclinic phase transformation. Arrows show the region of compressive stresses due to phase transformation)^[43]
Figure 6. Hardness and fracture toughness of the Al₂O₃ ceramic and ZTA composite
Figure 7. Mechanical properties of ZTA composites including different stabilizers
Figure 8. Schematic diagram of toughening mechanism of whisker toughened Al₂O₃ composites: (a) Crack deflection, (b) Whisker bridging, (c) Whisker pull-out, (d) Microcrack propagation^[67]
Figure 9. Crack path of SiC_w/Al₂O₃-YAG composites^[68]
Figure 10. Microstructure of Al₂O_3,sf/Al₂O₃ composites prepared by (a) fiber spraying-laminating process and (b) hand lay-up process^[74-75]
Figure 11. (a) Schematic diagram of toughening mechanism of ceramic matrix composites (CMCs)^[67]; (b) Flexural stress-displacement curves and ((c),(d)) Fracture surface of the Al₂O₃/Al₂O₃ composites^[78]
Figure 12. (a) Schematic diagram of preparation process for NGAC; (b) Load-displacement curve of NGAC; (c) Crack propagation path in PAC, (d) Crack propagation path in RGAC; (e) Crack propagation path in NGAC (Toughening mechanisms of NGAC including: (f) crack deflection (green arrow), bifurcation (yellow arrow) and pull-out of graphene (red cycle), (g) interfacial friction (blue arrow) and (h) crack bridging (red arrow))^[82]
Figure 13. Different toughening mechanisms of MWCNT/Al₂O₃ composites: (a) grain bridging; (b) MWCNT pull-out and bridging; (c) MWCNT pull-out and (d) crack deflection and MWCNT bridging^[94]; ((e),(f)) Fracture toughness and Hardness of the MWCNT/Al₂O₃ composites^[95-97]
Figure 14. ((a),(b)) Fracture surface of TiC_np and SiC_w synergistically toughened Al₂O₃ composites^[103]
Figure 15. ((a),(b)) Fracture surface for Ni/Al₂O₃ composites with 6.0wt% CaZrO₃ added; (c) Effects of CaZrO₃ on the flexural strength, fracture toughness and hardness of Ni/Al₂O₃ composite^[111]
Figure 16. ((a),(b)) The core-shell structure of SiC@graphene(SiC@G); Different toughening mechanisms of SiC@G/Al₂O₃ composites: (c) crack branching, (d) crack bridging, (e) crack deflection caused by core-shell structure and (f) crack deflection and transgranular fracture^[114]
Figure 17. Different Toughening Mechanisms for Synergistic Toughening of Al₂O₃-Ti(C,N) Composites by Graphene Nanoplatelets (GNPs) and Nano-ZrO₂: (a) pull-out of GNPs, (b) transgranular fracture, (c) intragranular fracture and (d) 3 D crack deflection; (e) Schematic diagram of the synergistic toughening mechanism of GNPs and nano-ZrO₂: (m) pull-out of GNPs and (n) crack bridging^[117]; (f) Fracture toughness variations in Al₂O₃ nanocomposites^[118-119]