Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Three-dimensional aluminum oxide fiber woven part reinforced aluminum oxide composite material based on aqueous slurry impregnation process and preparation method of three-dimensional aluminum oxide fiber woven part reinforced aluminum oxide composite material
The invention relates to the technical field of continuous fiber reinforced ceramic matrix composite materials, and particularly discloses a three-dimensional aluminum oxide fiber woven part reinforced aluminum oxide composite material based on an aqueous slurry impregnation process, and the porosity of the composite material is 20-30%. A reinforced phase of the composite material is a continuous aluminum oxide fiber woven part, the woven part is in a fiber cloth sewing, two-dimensional and half or three-dimensional weaving mode, the mass content of alumina in alumina fibers is not lower than 70%, and the volume fraction of the fibers in the composite material is 40-45%. The aluminum oxide matrix of the composite material is prepared through the processes of multiple times of dipping, drying and sintering of water-based aluminum oxide powder slurry with high solid content and low viscosity, the solid content of the water-based aluminum oxide powder slurry is 30-40 vol%, the viscosity of the slurry is 5-30 mPas, the pH is 3-4.5, and the Zeta potential is 60-70 mV. The invention also provides a preparation method of the composite material. The reinforced fibers are arranged between the layers of the composite material, so that the integrity is good. The preparation method disclosed by the invention is simple in process, low in cost, good in environmental protection property and easy to realize large-scale industrialization.
本发明涉及连续纤维增强陶瓷基复合材料技术领域，具体公开了一种基于水性浆料浸渍工艺的三维氧化铝纤维编织件增强氧化铝复合材料，复合材料的孔隙率为20~30%；所述复合材料增强相为连续氧化铝纤维编织件，编织件为纤维布缝合、二维半或三维编织方式，氧化铝纤维中氧化铝的质量含量不低于70%，复合材料中纤维体积分数为40~45%；所述复合材料氧化铝基体通过高固相含量、低粘度水性氧化铝粉体浆料多次浸渍‑干燥‑烧结工艺完成，水性氧化铝粉体浆料固含量为30~40vol%，浆料粘度为5~30mPa⋅s，pH为3~4.5，Zeta电位为60~70mV。本发明还提供了复合材料的制备方法。本发明的复合材料层间有增强纤维，整体性好；本发明的制备方法工艺简单，成本低，环保性好，易于实现大规模产业化。
Three-dimensional aluminum oxide fiber woven part reinforced aluminum oxide composite material based on aqueous slurry impregnation process and preparation method of three-dimensional aluminum oxide fiber woven part reinforced aluminum oxide composite material
The invention relates to the technical field of continuous fiber reinforced ceramic matrix composite materials, and particularly discloses a three-dimensional aluminum oxide fiber woven part reinforced aluminum oxide composite material based on an aqueous slurry impregnation process, and the porosity of the composite material is 20-30%. A reinforced phase of the composite material is a continuous aluminum oxide fiber woven part, the woven part is in a fiber cloth sewing, two-dimensional and half or three-dimensional weaving mode, the mass content of alumina in alumina fibers is not lower than 70%, and the volume fraction of the fibers in the composite material is 40-45%. The aluminum oxide matrix of the composite material is prepared through the processes of multiple times of dipping, drying and sintering of water-based aluminum oxide powder slurry with high solid content and low viscosity, the solid content of the water-based aluminum oxide powder slurry is 30-40 vol%, the viscosity of the slurry is 5-30 mPas, the pH is 3-4.5, and the Zeta potential is 60-70 mV. The invention also provides a preparation method of the composite material. The reinforced fibers are arranged between the layers of the composite material, so that the integrity is good. The preparation method disclosed by the invention is simple in process, low in cost, good in environmental protection property and easy to realize large-scale industrialization.
本发明涉及连续纤维增强陶瓷基复合材料技术领域，具体公开了一种基于水性浆料浸渍工艺的三维氧化铝纤维编织件增强氧化铝复合材料，复合材料的孔隙率为20~30%；所述复合材料增强相为连续氧化铝纤维编织件，编织件为纤维布缝合、二维半或三维编织方式，氧化铝纤维中氧化铝的质量含量不低于70%，复合材料中纤维体积分数为40~45%；所述复合材料氧化铝基体通过高固相含量、低粘度水性氧化铝粉体浆料多次浸渍‑干燥‑烧结工艺完成，水性氧化铝粉体浆料固含量为30~40vol%，浆料粘度为5~30mPa⋅s，pH为3~4.5，Zeta电位为60~70mV。本发明还提供了复合材料的制备方法。本发明的复合材料层间有增强纤维，整体性好；本发明的制备方法工艺简单，成本低，环保性好，易于实现大规模产业化。
Three-dimensional aluminum oxide fiber woven part reinforced aluminum oxide composite material based on aqueous slurry impregnation process and preparation method of three-dimensional aluminum oxide fiber woven part reinforced aluminum oxide composite material
一种基于水性浆料浸渍工艺的三维氧化铝纤维编织件增强氧化铝复合材料及其制备方法
LIU HAITAO (Autor:in) / TIAN ZHENGHAO (Autor:in) / HUANG WENZHI (Autor:in) / SUN XUN (Autor:in) / DENG GUIHANG (Autor:in)
28.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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