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Preparation method of alumina fiber reinforced alumina-based composite material
The invention discloses a preparation method of an alumina fiber reinforced alumina-based composite material, which comprises the following steps: mixing resin, a dispersant, a sintering aid and alumina powder in proportion, and then carrying out ball milling to obtain alumina slurry; carrying out vacuum impregnation on the degummed aluminum oxide woven part by adopting the degassed aluminum oxide slurry; after dipping is finished, putting into a mould pressing mould, applying a certain pressure, and then releasing the pressure; then carrying out high-temperature treatment together with the mould pressing mould, unloading the mould after cooling, and repeating vacuum impregnation and high-temperature treatment until the weight gain rate of the aluminum oxide woven part is reduced to be less than 1%, so as to obtain a composite material rough blank; carrying out vacuum impregnation on the rough blank by adopting alumina sol; performing drying and high-temperature treatment on the impregnated rough blank, and naturally cooling; and repeating vacuum impregnation, drying and high-temperature treatment until the weight gain rate of the rough blank is reduced to be less than 1% to obtain the composite material. By adopting the method, the preparation of the high-performance composite material can be realized in a relatively short period.
本发明公开了一种氧化铝纤维增强氧化铝基复合材料的制备方法，该方法包括：将树脂、分散剂、烧结助剂和氧化铝粉体按比例混合后进行球磨，得到氧化铝浆料；采用脱气后的氧化铝浆料对脱胶后的氧化铝编织件进行真空浸渍；浸渍结束后，放入模压模具内，施加一定压力，后卸压；接着连同模压模具进行高温处理，冷却后卸下模具，重复真空浸渍和高温处理，直至氧化铝编织件的增重率降低至1％以下，得到复合材料粗胚；采用氧化铝溶胶对粗胚进行真空浸渍；将浸渍后的粗胚进行烘干和高温处理后，自然冷却；重复真空浸渍‑烘干‑高温处理，直至粗胚的增重率降低至1％以下，得到复合材料。采用本方法能较短的周期内实现高性能复合材料的制备。
Preparation method of alumina fiber reinforced alumina-based composite material
The invention discloses a preparation method of an alumina fiber reinforced alumina-based composite material, which comprises the following steps: mixing resin, a dispersant, a sintering aid and alumina powder in proportion, and then carrying out ball milling to obtain alumina slurry; carrying out vacuum impregnation on the degummed aluminum oxide woven part by adopting the degassed aluminum oxide slurry; after dipping is finished, putting into a mould pressing mould, applying a certain pressure, and then releasing the pressure; then carrying out high-temperature treatment together with the mould pressing mould, unloading the mould after cooling, and repeating vacuum impregnation and high-temperature treatment until the weight gain rate of the aluminum oxide woven part is reduced to be less than 1%, so as to obtain a composite material rough blank; carrying out vacuum impregnation on the rough blank by adopting alumina sol; performing drying and high-temperature treatment on the impregnated rough blank, and naturally cooling; and repeating vacuum impregnation, drying and high-temperature treatment until the weight gain rate of the rough blank is reduced to be less than 1% to obtain the composite material. By adopting the method, the preparation of the high-performance composite material can be realized in a relatively short period.
本发明公开了一种氧化铝纤维增强氧化铝基复合材料的制备方法，该方法包括：将树脂、分散剂、烧结助剂和氧化铝粉体按比例混合后进行球磨，得到氧化铝浆料；采用脱气后的氧化铝浆料对脱胶后的氧化铝编织件进行真空浸渍；浸渍结束后，放入模压模具内，施加一定压力，后卸压；接着连同模压模具进行高温处理，冷却后卸下模具，重复真空浸渍和高温处理，直至氧化铝编织件的增重率降低至1％以下，得到复合材料粗胚；采用氧化铝溶胶对粗胚进行真空浸渍；将浸渍后的粗胚进行烘干和高温处理后，自然冷却；重复真空浸渍‑烘干‑高温处理，直至粗胚的增重率降低至1％以下，得到复合材料。采用本方法能较短的周期内实现高性能复合材料的制备。
Preparation method of alumina fiber reinforced alumina-based composite material
一种氧化铝纤维增强氧化铝基复合材料的制备方法
WANG HONGLEI (author) / SUN JINGWEI (author) / ZHOU XINGUI (author) / YU JINSHAN (author)
2024-05-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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