Al2O3-ZrO2-based eutectic ceramics,fabricatedby rapid solidification technology and composed of ultrafine,three-dimensionally intertwined single-crystal domains,represent a distinct category of eutectic oxides. These materials exhibit exceptionally high-temperature mechanical properties,such as strength,toughness,and creep resistance when aligned along the preferred growth direction,rendering them preferred ultrahigh-temperature structural materials for long-term operation in high-temperature oxidizing atmospheres. This paper comprehensively reviews the eutectic systems,advanced preparation techniques,microstructure characteristics,and mechanical properties of Al2O3-ZrO2-based eutectic ceramics,with particular emphasis on their high-temperature mechanical performance. It begins by summarizing the material systems of Al2O3-ZrO2-based eutectic ceramics developed to date,followed by a concise introduction to the basic principles,advantages,limitations,and application areas of their advanced preparation technologies. Finally,a detailed comparative analysis is provided,highlighting the typical microstructures and high-temperature mechanical properties-including creep resistance and flexural strength-of Al2O3-ZrO2-based eutectic ceramics prepared by advanced processes. Compared to traditional eutectic ceramics,Al2O3-ZrO2-based eutectic ceramics fabricatedby rapid solidification technology,characterized by unique microstructures and superior mechanical properties,not only enhance the performance and preparation efficiency of conventional sintered oxide materials but also demonstrate unprecedented potential for applications in extreme environments involving high temperatures,high pressures,and strong oxidation.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |