Method for preparing silicon nitride fine microspheres by ionic crosslinking gel method

The invention relates to a method for preparing silicon nitride fine microspheres by an ionic crosslinking gel method, and belongs to the technical field of silicon nitride microspheres. The preparation method comprises the following steps: by taking alpha-Si3N4, Al2O3, Y2O3 and TiC as raw materials...

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Hauptverfasser:	ZOU XUANTANG, LIU ZEYONG, YE ZUFU, HUANG YIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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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creator	ZOU XUANTANG LIU ZEYONG YE ZUFU HUANG YIN
description	The invention relates to a method for preparing silicon nitride fine microspheres by an ionic crosslinking gel method, and belongs to the technical field of silicon nitride microspheres. The preparation method comprises the following steps: by taking alpha-Si3N4, Al2O3, Y2O3 and TiC as raw materials, carrying out three-stage segmented grinding of coarse grinding, fine grinding and superfine grinding, and then obtaining the silicon nitride fine microbeads by using an ionic crosslinking gel method. The deionized water is used as a solvent for three-stage grinding, high-speed circulating water is adopted for cooling, oxygenolysis is inhibited, the grinding effect is good, operation is easy, and large-scale production is easy. The silicon nitride fine microspheres prepared by the ionic crosslinking gel process can well avoid the problem of low strength caused by sphere layering, and the prepared microspheres are consistent in size, uniform and compact in internal structure, high in strength and small in abrasion.
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The preparation method comprises the following steps: by taking alpha-Si3N4, Al2O3, Y2O3 and TiC as raw materials, carrying out three-stage segmented grinding of coarse grinding, fine grinding and superfine grinding, and then obtaining the silicon nitride fine microbeads by using an ionic crosslinking gel method. The deionized water is used as a solvent for three-stage grinding, high-speed circulating water is adopted for cooling, oxygenolysis is inhibited, the grinding effect is good, operation is easy, and large-scale production is easy. 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title	Method for preparing silicon nitride fine microspheres by ionic crosslinking gel method
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