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Hongcheng News Report -- Henan Hongcheng New Material Technology Co., Ltd. applied for a patent entitled "a high sintering activated alumina ceramic powder and a preparation method for alumina ceramics"
Release time:
2025-03-06
According to the information of the State Intellectual Property Office, Henan Hongcheng New Material Technology Co., Ltd. applied for a patent entitled "a kind of highly sintered activated alumina ceramic powder and its preparation method a kind of preparation method of alumina ceramics", the public number CN 119100764A, the application date is September 2024.
The invention belongs to the technical field of ceramic materials, in particular to a high-sintered activated alumina ceramic powder and a preparation method thereof, and a preparation method of alumina ceramic. By modifying alumina ceramic powder with weak acid, the surface of alumina can be slightly corroded, on the one hand increase its activity, on the other hand increase its specific surface area, which is convenient to contact with more surfactants during the secondary modification process, and improve the modification effect; The second modification, through the treatment of surfactants, increases the activity of alumina powder and changes its compatibility and dispersibility, so that it does not agglomerate in the hydrothermal reaction, obtains uniform powder and improves its sintering activity; The purpose of continuing the hydrothermal treatment is that, because the surface surface of the alumina powder is rough after the first modification treatment, it is not smooth, and the surface morphology of the formed alumina ceramic powder is modified by the hydrothermal method, so as to obtain the alumina ceramic powder with high sintering activity.
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