Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gel-casting alumina fiber reinforced composite material containing lanthanum phosphate interface layer and preparation method of gel-casting alumina fiber reinforced composite material
The invention relates to a gel-casting alumina fiber reinforced composite material containing a lanthanum phosphate interface layer and a preparation method thereof. The method comprises the following steps: impregnating an impregnating compound-removed alumina fiber three-dimensional fabric in a lanthanum phosphate precursor solution, performing vacuum impregnation, and performing high-temperature sintering to obtain an alumina fiber three-dimensional fabric containing a lanthanum phosphate interface layer; preparing aluminum oxide gel injection slurry; placing the alumina fiber three-dimensional fabric in a vacuum impregnation device, and carrying out vacuum impregnation on the alumina slurry; carrying out high-temperature sintering on the obtained alumina fiber reinforced alumina-based composite material blank to obtain a sintered rough blank; placing the alumina fiber three-dimensional fabric in a vacuum impregnation device, and impregnating the alumina fiber three-dimensional fabric with silica sol; after the alumina fiber three-dimensional fabric is demoulded, the alumina fiber three-dimensional fabric is sintered at a high temperature to obtain the uniform and compact alumina fiber composite material. The aluminum oxide slurry is prepared by adopting a gel injection method, and an interface phase exists, so that the prepared aluminum oxide fiber composite material is good in density and excellent in mechanical property.
本发明涉及一种含有磷酸镧界面层的注凝成型的氧化铝纤维增强复合材料及其制备方法。该方法包括：将去除浸润剂的氧化铝纤维三维织物浸渍于磷酸镧前驱体溶液中，真空浸渍、高温烧结后得到含有磷酸镧界面层的氧化铝纤维三维织物；配置氧化铝注凝浆料；将氧化铝纤维三维织物放置于真空浸渍装置中，真空浸渍氧化铝浆料；将得到的氧化铝纤维增强氧化铝基复合材料坯体进行高温烧结，得到烧结后的粗坯；将氧化铝纤维三维织物置于真空浸渍装置中，浸渍硅溶胶；将氧化铝纤维三维织物脱模后进行高温烧结后可得到均匀致密的氧化铝纤维复合材料。本发明由于采用了注凝法制备氧化铝浆料，并有界面相的存在，制备的氧化铝纤维复合材料致密度好，力学性能优异。
Gel-casting alumina fiber reinforced composite material containing lanthanum phosphate interface layer and preparation method of gel-casting alumina fiber reinforced composite material
The invention relates to a gel-casting alumina fiber reinforced composite material containing a lanthanum phosphate interface layer and a preparation method thereof. The method comprises the following steps: impregnating an impregnating compound-removed alumina fiber three-dimensional fabric in a lanthanum phosphate precursor solution, performing vacuum impregnation, and performing high-temperature sintering to obtain an alumina fiber three-dimensional fabric containing a lanthanum phosphate interface layer; preparing aluminum oxide gel injection slurry; placing the alumina fiber three-dimensional fabric in a vacuum impregnation device, and carrying out vacuum impregnation on the alumina slurry; carrying out high-temperature sintering on the obtained alumina fiber reinforced alumina-based composite material blank to obtain a sintered rough blank; placing the alumina fiber three-dimensional fabric in a vacuum impregnation device, and impregnating the alumina fiber three-dimensional fabric with silica sol; after the alumina fiber three-dimensional fabric is demoulded, the alumina fiber three-dimensional fabric is sintered at a high temperature to obtain the uniform and compact alumina fiber composite material. The aluminum oxide slurry is prepared by adopting a gel injection method, and an interface phase exists, so that the prepared aluminum oxide fiber composite material is good in density and excellent in mechanical property.
本发明涉及一种含有磷酸镧界面层的注凝成型的氧化铝纤维增强复合材料及其制备方法。该方法包括：将去除浸润剂的氧化铝纤维三维织物浸渍于磷酸镧前驱体溶液中，真空浸渍、高温烧结后得到含有磷酸镧界面层的氧化铝纤维三维织物；配置氧化铝注凝浆料；将氧化铝纤维三维织物放置于真空浸渍装置中，真空浸渍氧化铝浆料；将得到的氧化铝纤维增强氧化铝基复合材料坯体进行高温烧结，得到烧结后的粗坯；将氧化铝纤维三维织物置于真空浸渍装置中，浸渍硅溶胶；将氧化铝纤维三维织物脱模后进行高温烧结后可得到均匀致密的氧化铝纤维复合材料。本发明由于采用了注凝法制备氧化铝浆料，并有界面相的存在，制备的氧化铝纤维复合材料致密度好，力学性能优异。
Gel-casting alumina fiber reinforced composite material containing lanthanum phosphate interface layer and preparation method of gel-casting alumina fiber reinforced composite material
一种含有磷酸镧界面层的注凝成型的氧化铝纤维增强复合材料及其制备方法
ZHONG WENLI (Autor:in) / CI JILIANG (Autor:in) / LIU YICHANG (Autor:in) / MA XINZHOU (Autor:in) / SUN ZHIQIANG (Autor:in) / LYU YI (Autor:in) / ZHAO YINGMIN (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Method for preparing 610 alumina fiber reinforced composite material by gel casting
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2022
Preparation method of alumina fiber reinforced alumina-based composite material
| Europäisches Patentamt | 2024
Alumina fiber reinforced phosphate-based composite material and preparation method thereof
| Europäisches Patentamt | 2024