Preparation method of high-precision silicon nitride ceramic microspheres

The invention relates to the technical field of preparation of ceramic balls, and discloses and provides a preparation method of high-precision silicon nitride ceramic microspheres, which comprises the following steps: preparing materials, mixing the materials, and pressing into spheres. Pre-sinteri...

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Bibliographic Details
Main Authors CHEN JIE, DENG XIAOFENG, JIANG JIEYING, LIU HAIYUAN, ZHU FULIN
Format Patent
LanguageChinese
English
Published 09.04.2024
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:The invention relates to the technical field of preparation of ceramic balls, and discloses and provides a preparation method of high-precision silicon nitride ceramic microspheres, which comprises the following steps: preparing materials, mixing the materials, and pressing into spheres. Pre-sintering is conducted under the high-temperature and high-pressure condition, and the primary sphere is prepared; the size of the primary sphere is slightly larger than the final required size, so that processing space is reserved; sealing and aging; sintering: placing the primary sphere in a high-temperature furnace, controlling the temperature of the high-temperature furnace, and adding an inert atmosphere through an inert atmosphere control system for sintering; processing and adjusting the size; quality inspection; and finally processing. Silicon nitride ceramic powder is ground before preparation, so that the particle size of the silicon nitride ceramic powder is smaller, the hardness of the prepared silicon nitride
Bibliography:Application Number: CN202311852821