Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-sintering activated aluminum oxide ceramic powder and preparation method thereof, and preparation method of aluminum oxide ceramic
The invention belongs to the technical field of ceramic materials, and particularly relates to high-sintering activated aluminum oxide ceramic powder and a preparation method thereof, and a preparation method of aluminum oxide ceramic. The aluminum oxide ceramic powder is modified with weak acid, the surface of aluminum oxide can be slightly corroded, the activity of the aluminum oxide ceramic powder is improved, the specific surface area of the aluminum oxide ceramic powder is increased, contact with more surfactants in the secondary modification process is facilitated, and the modification effect is improved; second modification is carried out, through treatment of a surfactant, the activity of the aluminum oxide powder is improved, and meanwhile, the compatibility and dispersity of the aluminum oxide powder are changed, so that the aluminum oxide powder is not agglomerated in a hydrothermal reaction, uniform powder is obtained, and the sintering activity of the powder is improved; the purpose of continuous hydrothermal treatment is that after the primary modification treatment, the surface of the alumina powder is rough and unsmooth, and the morphology of the formed alumina ceramic powder particles is modified by adopting a hydrothermal method, so that the alumina ceramic powder with regular surface morphology and high sintering activity is obtained.
本发明属于陶瓷材料技术领域，具体涉及一种高烧结活性氧化铝陶瓷粉及其制备方法、一种氧化铝陶瓷的制备方法。本发明采用弱酸对氧化铝陶瓷粉进行改性处理，能够微腐蚀氧化铝表面，一方面增加其活性，另一方面提高其比表面积，便于二次改性过程中与更多的表面活性剂接触，提高改性效果；进行第二改性，通过表面活性剂的处理，增加氧化铝粉体的活性同时改变其相容性和分散性性能，使其在水热反应中不团聚，得到均匀的粉体，提高其烧结活性；继续水热处理的目的是，因为一次改性处理后，氧化铝粉体表面表面粗糙，是不光滑的，通过采用水热法对形成的氧化铝陶瓷粉体颗粒形貌进行修饰，得到其表面形貌规整，从而得到具有高烧结活性的氧化铝陶瓷粉体。
High-sintering activated aluminum oxide ceramic powder and preparation method thereof, and preparation method of aluminum oxide ceramic
The invention belongs to the technical field of ceramic materials, and particularly relates to high-sintering activated aluminum oxide ceramic powder and a preparation method thereof, and a preparation method of aluminum oxide ceramic. The aluminum oxide ceramic powder is modified with weak acid, the surface of aluminum oxide can be slightly corroded, the activity of the aluminum oxide ceramic powder is improved, the specific surface area of the aluminum oxide ceramic powder is increased, contact with more surfactants in the secondary modification process is facilitated, and the modification effect is improved; second modification is carried out, through treatment of a surfactant, the activity of the aluminum oxide powder is improved, and meanwhile, the compatibility and dispersity of the aluminum oxide powder are changed, so that the aluminum oxide powder is not agglomerated in a hydrothermal reaction, uniform powder is obtained, and the sintering activity of the powder is improved; the purpose of continuous hydrothermal treatment is that after the primary modification treatment, the surface of the alumina powder is rough and unsmooth, and the morphology of the formed alumina ceramic powder particles is modified by adopting a hydrothermal method, so that the alumina ceramic powder with regular surface morphology and high sintering activity is obtained.
本发明属于陶瓷材料技术领域，具体涉及一种高烧结活性氧化铝陶瓷粉及其制备方法、一种氧化铝陶瓷的制备方法。本发明采用弱酸对氧化铝陶瓷粉进行改性处理，能够微腐蚀氧化铝表面，一方面增加其活性，另一方面提高其比表面积，便于二次改性过程中与更多的表面活性剂接触，提高改性效果；进行第二改性，通过表面活性剂的处理，增加氧化铝粉体的活性同时改变其相容性和分散性性能，使其在水热反应中不团聚，得到均匀的粉体，提高其烧结活性；继续水热处理的目的是，因为一次改性处理后，氧化铝粉体表面表面粗糙，是不光滑的，通过采用水热法对形成的氧化铝陶瓷粉体颗粒形貌进行修饰，得到其表面形貌规整，从而得到具有高烧结活性的氧化铝陶瓷粉体。
High-sintering activated aluminum oxide ceramic powder and preparation method thereof, and preparation method of aluminum oxide ceramic
一种高烧结活性氧化铝陶瓷粉及其制备方法、一种氧化铝陶瓷的制备方法
CHEN DONGSHENG (Autor:in) / WANG SONG (Autor:in) / WU DINGMING (Autor:in)
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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