AlN ceramic powder preparation method based on 3D printing molding

The invention discloses an AlN ceramic powder preparation method based on 3D printing molding. The method comprises the following steps: (1) mixing raw material powder, a solvent and an additive to prepare raw material ink with high solid content; (2) printing the raw material ink into a raw materia...

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Bibliographische Detailangaben
Hauptverfasser:	WANG CAIFEN, XU TINGTING, YUE YINGLEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	The invention discloses an AlN ceramic powder preparation method based on 3D printing molding. The method comprises the following steps: (1) mixing raw material powder, a solvent and an additive to prepare raw material ink with high solid content; (2) printing the raw material ink into a raw material blank with a regular three-dimensional through hole structure by adopting a 3D printing molding process, and drying the raw material blank; (3) putting the raw material blank into a reaction device with airflow control and anti-pollution functions in a high-temperature graphite sintering furnace,and carrying out high-temperature synthesis in a controlled reaction environment; and (4) finally, carrying out ball-milling process treatment to obtain the high-purity AlN ceramic powder. According to the method, the raw material powder can be printed into the blank with the regular three-dimensional through hole structure, the gas-solid synthesis reaction can be fully carried out during high-temperature synthesis, and t