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Fiber-reinforced zirconia ceramic-based composite material and preparation method thereof
The invention discloses a fiber-reinforced zirconia ceramic-based composite material and a preparation method thereof, the fiber-reinforced zirconia ceramic-based composite material takes an aluminosilicate fiber woven part as a fiber reinforcement and zirconia ceramic as a matrix, the zirconia matrix exists in a tetragonal phase, and the zirconia matrix contains 3.4 mol% of Y2O3; the volume fraction of the fiber reinforcement is 40.8%, the density of the composite material is 2.36 g/cm < 3 >-2.54 g/cm < 3 >, the porosity is 31.28%-36.34%, the bending strength at the room temperature is 55-95 MPa, and the strength retention rate is higher than 98% after high-temperature treatment at the temperature of 1400 DEG C. The main preparation method is a precursor impregnation and pyrolysis method, the method is simple in step and low in requirements on experimental environment and equipment, the preparation temperature is in a range of 800-1000 DEG C, the thermal damage to the fiber is effectively reduced, and meanwhile, the formation of strong interface bonding is also avoided.
本发明公开了一种纤维增强氧化锆陶瓷基复合材料及其制备方法，它以硅铝酸盐纤维编织件为纤维增强体，以氧化锆陶瓷为基体：其中氧化锆基体以四方相存在，氧化锆基体中含有3.4mol％的Y2O3；纤维增强体的体积分数为40.8％，复合材料的密度为2.36g/cm3‑2.54g/cm3、孔隙率为31.28％‑36.34％，室温下具有55MPa～95MPa的抗弯强度，经1400℃高温处理后，强度保留率高于98％。主要制备方法为前驱体浸渍裂解法，该方法步骤简单，对实验环境及设备要求不高，制备温度在800℃～1000℃范围内，有效地降低了纤维受到的热损伤，同时又避免了界面强结合的形成。
Fiber-reinforced zirconia ceramic-based composite material and preparation method thereof
The invention discloses a fiber-reinforced zirconia ceramic-based composite material and a preparation method thereof, the fiber-reinforced zirconia ceramic-based composite material takes an aluminosilicate fiber woven part as a fiber reinforcement and zirconia ceramic as a matrix, the zirconia matrix exists in a tetragonal phase, and the zirconia matrix contains 3.4 mol% of Y2O3; the volume fraction of the fiber reinforcement is 40.8%, the density of the composite material is 2.36 g/cm < 3 >-2.54 g/cm < 3 >, the porosity is 31.28%-36.34%, the bending strength at the room temperature is 55-95 MPa, and the strength retention rate is higher than 98% after high-temperature treatment at the temperature of 1400 DEG C. The main preparation method is a precursor impregnation and pyrolysis method, the method is simple in step and low in requirements on experimental environment and equipment, the preparation temperature is in a range of 800-1000 DEG C, the thermal damage to the fiber is effectively reduced, and meanwhile, the formation of strong interface bonding is also avoided.
本发明公开了一种纤维增强氧化锆陶瓷基复合材料及其制备方法，它以硅铝酸盐纤维编织件为纤维增强体，以氧化锆陶瓷为基体：其中氧化锆基体以四方相存在，氧化锆基体中含有3.4mol％的Y2O3；纤维增强体的体积分数为40.8％，复合材料的密度为2.36g/cm3‑2.54g/cm3、孔隙率为31.28％‑36.34％，室温下具有55MPa～95MPa的抗弯强度，经1400℃高温处理后，强度保留率高于98％。主要制备方法为前驱体浸渍裂解法，该方法步骤简单，对实验环境及设备要求不高，制备温度在800℃～1000℃范围内，有效地降低了纤维受到的热损伤，同时又避免了界面强结合的形成。
Fiber-reinforced zirconia ceramic-based composite material and preparation method thereof
一种纤维增强氧化锆陶瓷基复合材料及其制备方法
XIANG YANG (Autor:in) / ZHANG WEN (Autor:in) / CAO FENG (Autor:in) / PENG ZHIHANG (Autor:in)
04.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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