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Directional porous aluminum nitride honeycomb ceramic rapidly prepared by adopting freeze drying and combustion synthesis method and method thereof
The invention discloses a directional porous aluminum nitride honeycomb ceramic rapidly prepared by adopting a freeze drying and combustion synthesis method and a method thereof. Tert-butyl alcohol isadopted as a solvent, citric acid is adopted as a dispersing agent to freeze-dry aluminum nitride powder and a sintering aid, and the dried green body is put into a spark plasma sintering furnace tobe subjected to pressureless rapid sintering, so that the directional porous aluminum nitride ceramic with relatively high porosity and compressive strength can be obtained. The method for preparing the directional porous aluminum nitride ceramic has the characteristics of simple process, short period, good repeatability, low cost and the like. The prepared directional porous aluminum nitride ceramic has a wide application prospect in the fields of metal filtration, catalyst carriers, polymer reinforced phases, automobile industry, solar power generation and the like.
本发明公开了一种采用冷冻干燥和燃烧合成法快速制备的定向多孔氮化铝蜂窝陶瓷及其方法，采用叔丁醇为溶剂，柠檬酸为分散剂对氮化铝粉和烧结助剂进行冷冻干燥，并将干燥后的生坯放入放电等离子烧结炉中进行无压快速烧结后，可以得到气孔率和抗压强度较高的定向多孔氮化铝陶瓷。本发明制备定向多孔氮化铝陶瓷的方法具有工艺简单、周期短、重复性好、成本低等特点。制备出的定向多孔氮化铝陶瓷在金属过滤、催化剂载体、聚合物增强相、汽车工业、太阳能发电等领域具有广泛的应用前景。
Directional porous aluminum nitride honeycomb ceramic rapidly prepared by adopting freeze drying and combustion synthesis method and method thereof
The invention discloses a directional porous aluminum nitride honeycomb ceramic rapidly prepared by adopting a freeze drying and combustion synthesis method and a method thereof. Tert-butyl alcohol isadopted as a solvent, citric acid is adopted as a dispersing agent to freeze-dry aluminum nitride powder and a sintering aid, and the dried green body is put into a spark plasma sintering furnace tobe subjected to pressureless rapid sintering, so that the directional porous aluminum nitride ceramic with relatively high porosity and compressive strength can be obtained. The method for preparing the directional porous aluminum nitride ceramic has the characteristics of simple process, short period, good repeatability, low cost and the like. The prepared directional porous aluminum nitride ceramic has a wide application prospect in the fields of metal filtration, catalyst carriers, polymer reinforced phases, automobile industry, solar power generation and the like.
本发明公开了一种采用冷冻干燥和燃烧合成法快速制备的定向多孔氮化铝蜂窝陶瓷及其方法，采用叔丁醇为溶剂，柠檬酸为分散剂对氮化铝粉和烧结助剂进行冷冻干燥，并将干燥后的生坯放入放电等离子烧结炉中进行无压快速烧结后，可以得到气孔率和抗压强度较高的定向多孔氮化铝陶瓷。本发明制备定向多孔氮化铝陶瓷的方法具有工艺简单、周期短、重复性好、成本低等特点。制备出的定向多孔氮化铝陶瓷在金属过滤、催化剂载体、聚合物增强相、汽车工业、太阳能发电等领域具有广泛的应用前景。
Directional porous aluminum nitride honeycomb ceramic rapidly prepared by adopting freeze drying and combustion synthesis method and method thereof
一种采用冷冻干燥和燃烧合成法快速制备的定向多孔氮化铝蜂窝陶瓷及其方法
SHI ZHONGQI (author) / WEI ZHILEI (author) / YUAN YUAN (author) / XIE WENQI (author) / ZHANG ZHEJIAN (author) / XIA HONGYAN (author) / WANG BO (author)
2020-04-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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